1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.provider;
18
19
20import android.annotation.SdkConstant;
21import android.annotation.SdkConstant.SdkConstantType;
22import android.app.Activity;
23import android.app.AlarmManager;
24import android.app.PendingIntent;
25import android.content.ContentProviderClient;
26import android.content.ContentResolver;
27import android.content.ContentUris;
28import android.content.ContentValues;
29import android.content.Context;
30import android.content.CursorEntityIterator;
31import android.content.Entity;
32import android.content.EntityIterator;
33import android.content.Intent;
34import android.database.Cursor;
35import android.database.DatabaseUtils;
36import android.net.Uri;
37import android.os.RemoteException;
38import android.text.format.DateUtils;
39import android.text.format.Time;
40import android.util.Log;
41
42/**
43 * <p>
44 * The contract between the calendar provider and applications. Contains
45 * definitions for the supported URIs and data columns.
46 * </p>
47 * <h3>Overview</h3>
48 * <p>
49 * CalendarContract defines the data model of calendar and event related
50 * information. This data is stored in a number of tables:
51 * </p>
52 * <ul>
53 * <li>The {@link Calendars} table holds the calendar specific information. Each
54 * row in this table contains the details for a single calendar, such as the
55 * name, color, sync info, etc.</li>
56 * <li>The {@link Events} table holds the event specific information. Each row
57 * in this table has the info for a single event. It contains information such
58 * as event title, location, start time, end time, etc. The event can occur
59 * one-time or can recur multiple times. Attendees, reminders, and extended
60 * properties are stored on separate tables and reference the {@link Events#_ID}
61 * to link them with the event.</li>
62 * <li>The {@link Instances} table holds the start and end time for occurrences
63 * of an event. Each row in this table represents a single occurrence. For
64 * one-time events there will be a 1:1 mapping of instances to events. For
65 * recurring events, multiple rows will automatically be generated which
66 * correspond to multiple occurrences of that event.</li>
67 * <li>The {@link Attendees} table holds the event attendee or guest
68 * information. Each row represents a single guest of an event. It specifies the
69 * type of guest they are and their attendance response for the event.</li>
70 * <li>The {@link Reminders} table holds the alert/notification data. Each row
71 * represents a single alert for an event. An event can have multiple reminders.
72 * The number of reminders per event is specified in
73 * {@link Calendars#MAX_REMINDERS} which is set by the Sync Adapter that owns
74 * the given calendar. Reminders are specified in minutes before the event and
75 * have a type.</li>
76 * <li>The {@link ExtendedProperties} table holds opaque data fields used by the
77 * sync adapter. The provider takes no action with items in this table except to
78 * delete them when their related events are deleted.</li>
79 * </ul>
80 * <p>
81 * Other tables include:
82 * </p>
83 * <ul>
84 * <li>
85 * {@link SyncState}, which contains free-form data maintained by the sync
86 * adapters</li>
87 * </ul>
88 *
89 */
90public final class CalendarContract {
91    private static final String TAG = "Calendar";
92
93    /**
94     * Broadcast Action: This is the intent that gets fired when an alarm
95     * notification needs to be posted for a reminder.
96     *
97     */
98    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
99    public static final String ACTION_EVENT_REMINDER = "android.intent.action.EVENT_REMINDER";
100
101    /**
102     * Activity Action: Display the event to the user in the custom app as
103     * specified in {@link EventsColumns#CUSTOM_APP_PACKAGE}. The custom app
104     * will be started via {@link Activity#startActivityForResult(Intent, int)}
105     * and it should call {@link Activity#setResult(int)} with
106     * {@link Activity#RESULT_OK} or {@link Activity#RESULT_CANCELED} to
107     * acknowledge whether the action was handled or not.
108     *
109     * The custom app should have an intent filter like the following:
110     * <pre>
111     * &lt;intent-filter&gt;
112     *    &lt;action android:name="android.provider.calendar.action.HANDLE_CUSTOM_EVENT" /&gt;
113     *    &lt;category android:name="android.intent.category.DEFAULT" /&gt;
114     *    &lt;data android:mimeType="vnd.android.cursor.item/event" /&gt;
115     * &lt;/intent-filter&gt;</pre>
116     * <p>
117     * Input: {@link Intent#getData} has the event URI. The extra
118     * {@link #EXTRA_EVENT_BEGIN_TIME} has the start time of the instance. The
119     * extra {@link #EXTRA_CUSTOM_APP_URI} will have the
120     * {@link EventsColumns#CUSTOM_APP_URI}.
121     * <p>
122     * Output: {@link Activity#RESULT_OK} if this was handled; otherwise
123     * {@link Activity#RESULT_CANCELED}.
124     */
125    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
126    public static final String ACTION_HANDLE_CUSTOM_EVENT =
127        "android.provider.calendar.action.HANDLE_CUSTOM_EVENT";
128
129    /**
130     * Intent Extras key: {@link EventsColumns#CUSTOM_APP_URI} for the event in
131     * the {@link #ACTION_HANDLE_CUSTOM_EVENT} intent
132     */
133    public static final String EXTRA_CUSTOM_APP_URI = "customAppUri";
134
135    /**
136     * Intent Extras key: The start time of an event or an instance of a
137     * recurring event. (milliseconds since epoch)
138     */
139    public static final String EXTRA_EVENT_BEGIN_TIME = "beginTime";
140
141    /**
142     * Intent Extras key: The end time of an event or an instance of a recurring
143     * event. (milliseconds since epoch)
144     */
145    public static final String EXTRA_EVENT_END_TIME = "endTime";
146
147    /**
148     * Intent Extras key: When creating an event, set this to true to create an
149     * all-day event by default
150     */
151    public static final String EXTRA_EVENT_ALL_DAY = "allDay";
152
153    /**
154     * This authority is used for writing to or querying from the calendar
155     * provider. Note: This is set at first run and cannot be changed without
156     * breaking apps that access the provider.
157     */
158    public static final String AUTHORITY = "com.android.calendar";
159
160    /**
161     * The content:// style URL for the top-level calendar authority
162     */
163    public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY);
164
165    /**
166     * An optional insert, update or delete URI parameter that allows the caller
167     * to specify that it is a sync adapter. The default value is false. If set
168     * to true, the modified row is not marked as "dirty" (needs to be synced)
169     * and when the provider calls
170     * {@link ContentResolver#notifyChange(android.net.Uri, android.database.ContentObserver, boolean)}
171     * , the third parameter "syncToNetwork" is set to false. Furthermore, if
172     * set to true, the caller must also include
173     * {@link Calendars#ACCOUNT_NAME} and {@link Calendars#ACCOUNT_TYPE} as
174     * query parameters.
175     *
176     * @see Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)
177     */
178    public static final String CALLER_IS_SYNCADAPTER = "caller_is_syncadapter";
179
180    /**
181     * A special account type for calendars not associated with any account.
182     * Normally calendars that do not match an account on the device will be
183     * removed. Setting the account_type on a calendar to this will prevent it
184     * from being wiped if it does not match an existing account.
185     *
186     * @see SyncColumns#ACCOUNT_TYPE
187     */
188    public static final String ACCOUNT_TYPE_LOCAL = "LOCAL";
189
190    /**
191     * This utility class cannot be instantiated
192     */
193    private CalendarContract() {}
194
195    /**
196     * Generic columns for use by sync adapters. The specific functions of these
197     * columns are private to the sync adapter. Other clients of the API should
198     * not attempt to either read or write this column. These columns are
199     * editable as part of the Calendars Uri, but can only be read if accessed
200     * through any other Uri.
201     */
202    protected interface CalendarSyncColumns {
203
204
205        /**
206         * Generic column for use by sync adapters. Column name.
207         * <P>Type: TEXT</P>
208         */
209        public static final String CAL_SYNC1 = "cal_sync1";
210
211        /**
212         * Generic column for use by sync adapters. Column name.
213         * <P>Type: TEXT</P>
214         */
215        public static final String CAL_SYNC2 = "cal_sync2";
216
217        /**
218         * Generic column for use by sync adapters. Column name.
219         * <P>Type: TEXT</P>
220         */
221        public static final String CAL_SYNC3 = "cal_sync3";
222
223        /**
224         * Generic column for use by sync adapters. Column name.
225         * <P>Type: TEXT</P>
226         */
227        public static final String CAL_SYNC4 = "cal_sync4";
228
229        /**
230         * Generic column for use by sync adapters. Column name.
231         * <P>Type: TEXT</P>
232         */
233        public static final String CAL_SYNC5 = "cal_sync5";
234
235        /**
236         * Generic column for use by sync adapters. Column name.
237         * <P>Type: TEXT</P>
238         */
239        public static final String CAL_SYNC6 = "cal_sync6";
240
241        /**
242         * Generic column for use by sync adapters. Column name.
243         * <P>Type: TEXT</P>
244         */
245        public static final String CAL_SYNC7 = "cal_sync7";
246
247        /**
248         * Generic column for use by sync adapters. Column name.
249         * <P>Type: TEXT</P>
250         */
251        public static final String CAL_SYNC8 = "cal_sync8";
252
253        /**
254         * Generic column for use by sync adapters. Column name.
255         * <P>Type: TEXT</P>
256         */
257        public static final String CAL_SYNC9 = "cal_sync9";
258
259        /**
260         * Generic column for use by sync adapters. Column name.
261         * <P>Type: TEXT</P>
262         */
263        public static final String CAL_SYNC10 = "cal_sync10";
264    }
265
266    /**
267     * Columns for Sync information used by Calendars and Events tables. These
268     * have specific uses which are expected to be consistent by the app and
269     * sync adapter.
270     *
271     */
272    protected interface SyncColumns extends CalendarSyncColumns {
273        /**
274         * The account that was used to sync the entry to the device. If the
275         * account_type is not {@link #ACCOUNT_TYPE_LOCAL} then the name and
276         * type must match an account on the device or the calendar will be
277         * deleted.
278         * <P>Type: TEXT</P>
279         */
280        public static final String ACCOUNT_NAME = "account_name";
281
282        /**
283         * The type of the account that was used to sync the entry to the
284         * device. A type of {@link #ACCOUNT_TYPE_LOCAL} will keep this event
285         * form being deleted if there are no matching accounts on the device.
286         * <P>Type: TEXT</P>
287         */
288        public static final String ACCOUNT_TYPE = "account_type";
289
290        /**
291         * The unique ID for a row assigned by the sync source. NULL if the row
292         * has never been synced. This is used as a reference id for exceptions
293         * along with {@link BaseColumns#_ID}.
294         * <P>Type: TEXT</P>
295         */
296        public static final String _SYNC_ID = "_sync_id";
297
298        /**
299         * Used to indicate that local, unsynced, changes are present.
300         * <P>Type: INTEGER (long)</P>
301         */
302
303        public static final String DIRTY = "dirty";
304
305        /**
306         * Used in conjunction with {@link #DIRTY} to indicate what packages wrote local changes.
307         * <P>Type: TEXT</P>
308         */
309        public static final String MUTATORS = "mutators";
310
311        /**
312         * Whether the row has been deleted but not synced to the server. A
313         * deleted row should be ignored.
314         * <P>
315         * Type: INTEGER (boolean)
316         * </P>
317         */
318        public static final String DELETED = "deleted";
319
320        /**
321         * If set to 1 this causes events on this calendar to be duplicated with
322         * {@link Events#LAST_SYNCED} set to 1 whenever the event
323         * transitions from non-dirty to dirty. The duplicated event will not be
324         * expanded in the instances table and will only show up in sync adapter
325         * queries of the events table. It will also be deleted when the
326         * originating event has its dirty flag cleared by the sync adapter.
327         * <P>Type: INTEGER (boolean)</P>
328         */
329        public static final String CAN_PARTIALLY_UPDATE = "canPartiallyUpdate";
330    }
331
332    /**
333     * Columns specific to the Calendars Uri that other Uris can query.
334     */
335    protected interface CalendarColumns {
336        /**
337         * The color of the calendar. This should only be updated by the sync
338         * adapter, not other apps, as changing a calendar's color can adversely
339         * affect its display.
340         * <P>Type: INTEGER (color value)</P>
341         */
342        public static final String CALENDAR_COLOR = "calendar_color";
343
344        /**
345         * A key for looking up a color from the {@link Colors} table. NULL or
346         * an empty string are reserved for indicating that the calendar does
347         * not use a key for looking up the color. The provider will update
348         * {@link #CALENDAR_COLOR} automatically when a valid key is written to
349         * this column. The key must reference an existing row of the
350         * {@link Colors} table. @see Colors
351         * <P>
352         * Type: TEXT
353         * </P>
354         */
355        public static final String CALENDAR_COLOR_KEY = "calendar_color_index";
356
357        /**
358         * The display name of the calendar. Column name.
359         * <P>
360         * Type: TEXT
361         * </P>
362         */
363        public static final String CALENDAR_DISPLAY_NAME = "calendar_displayName";
364
365        /**
366         * The level of access that the user has for the calendar
367         * <P>Type: INTEGER (one of the values below)</P>
368         */
369        public static final String CALENDAR_ACCESS_LEVEL = "calendar_access_level";
370
371        /** Cannot access the calendar */
372        public static final int CAL_ACCESS_NONE = 0;
373        /** Can only see free/busy information about the calendar */
374        public static final int CAL_ACCESS_FREEBUSY = 100;
375        /** Can read all event details */
376        public static final int CAL_ACCESS_READ = 200;
377        /** Can reply yes/no/maybe to an event */
378        public static final int CAL_ACCESS_RESPOND = 300;
379        /** not used */
380        public static final int CAL_ACCESS_OVERRIDE = 400;
381        /** Full access to modify the calendar, but not the access control
382         * settings
383         */
384        public static final int CAL_ACCESS_CONTRIBUTOR = 500;
385        /** Full access to modify the calendar, but not the access control
386         * settings
387         */
388        public static final int CAL_ACCESS_EDITOR = 600;
389        /** Full access to the calendar */
390        public static final int CAL_ACCESS_OWNER = 700;
391        /** Domain admin */
392        public static final int CAL_ACCESS_ROOT = 800;
393
394        /**
395         * Is the calendar selected to be displayed?
396         * 0 - do not show events associated with this calendar.
397         * 1 - show events associated with this calendar
398         * <P>Type: INTEGER (boolean)</P>
399         */
400        public static final String VISIBLE = "visible";
401
402        /**
403         * The time zone the calendar is associated with.
404         * <P>Type: TEXT</P>
405         */
406        public static final String CALENDAR_TIME_ZONE = "calendar_timezone";
407
408        /**
409         * Is this calendar synced and are its events stored on the device?
410         * 0 - Do not sync this calendar or store events for this calendar.
411         * 1 - Sync down events for this calendar.
412         * <p>Type: INTEGER (boolean)</p>
413         */
414        public static final String SYNC_EVENTS = "sync_events";
415
416        /**
417         * The owner account for this calendar, based on the calendar feed.
418         * This will be different from the _SYNC_ACCOUNT for delegated calendars.
419         * Column name.
420         * <P>Type: String</P>
421         */
422        public static final String OWNER_ACCOUNT = "ownerAccount";
423
424        /**
425         * Can the organizer respond to the event?  If no, the status of the
426         * organizer should not be shown by the UI.  Defaults to 1. Column name.
427         * <P>Type: INTEGER (boolean)</P>
428         */
429        public static final String CAN_ORGANIZER_RESPOND = "canOrganizerRespond";
430
431        /**
432         * Can the organizer modify the time zone of the event? Column name.
433         * <P>Type: INTEGER (boolean)</P>
434        */
435        public static final String CAN_MODIFY_TIME_ZONE = "canModifyTimeZone";
436
437        /**
438         * The maximum number of reminders allowed for an event. Column name.
439         * <P>Type: INTEGER</P>
440         */
441        public static final String MAX_REMINDERS = "maxReminders";
442
443        /**
444         * A comma separated list of reminder methods supported for this
445         * calendar in the format "#,#,#". Valid types are
446         * {@link Reminders#METHOD_DEFAULT}, {@link Reminders#METHOD_ALERT},
447         * {@link Reminders#METHOD_EMAIL}, {@link Reminders#METHOD_SMS},
448         * {@link Reminders#METHOD_ALARM}. Column name.
449         * <P>Type: TEXT</P>
450         */
451        public static final String ALLOWED_REMINDERS = "allowedReminders";
452
453        /**
454         * A comma separated list of availability types supported for this
455         * calendar in the format "#,#,#". Valid types are
456         * {@link Events#AVAILABILITY_BUSY}, {@link Events#AVAILABILITY_FREE},
457         * {@link Events#AVAILABILITY_TENTATIVE}. Setting this field to only
458         * {@link Events#AVAILABILITY_BUSY} should be used to indicate that
459         * changing the availability is not supported.
460         *
461         */
462        public static final String ALLOWED_AVAILABILITY = "allowedAvailability";
463
464        /**
465         * A comma separated list of attendee types supported for this calendar
466         * in the format "#,#,#". Valid types are {@link Attendees#TYPE_NONE},
467         * {@link Attendees#TYPE_OPTIONAL}, {@link Attendees#TYPE_REQUIRED},
468         * {@link Attendees#TYPE_RESOURCE}. Setting this field to only
469         * {@link Attendees#TYPE_NONE} should be used to indicate that changing
470         * the attendee type is not supported.
471         *
472         */
473        public static final String ALLOWED_ATTENDEE_TYPES = "allowedAttendeeTypes";
474
475        /**
476         * Is this the primary calendar for this account. If this column is not explicitly set, the
477         * provider will return 1 if {@link Calendars#ACCOUNT_NAME} is equal to
478         * {@link Calendars#OWNER_ACCOUNT}.
479         */
480        public static final String IS_PRIMARY = "isPrimary";
481    }
482
483    /**
484     * Class that represents a Calendar Entity. There is one entry per calendar.
485     * This is a helper class to make batch operations easier.
486     */
487    public static final class CalendarEntity implements BaseColumns, SyncColumns, CalendarColumns {
488
489        /**
490         * The default Uri used when creating a new calendar EntityIterator.
491         */
492        @SuppressWarnings("hiding")
493        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
494                "/calendar_entities");
495
496        /**
497         * This utility class cannot be instantiated
498         */
499        private CalendarEntity() {}
500
501        /**
502         * Creates an entity iterator for the given cursor. It assumes the
503         * cursor contains a calendars query.
504         *
505         * @param cursor query on {@link #CONTENT_URI}
506         * @return an EntityIterator of calendars
507         */
508        public static EntityIterator newEntityIterator(Cursor cursor) {
509            return new EntityIteratorImpl(cursor);
510        }
511
512        private static class EntityIteratorImpl extends CursorEntityIterator {
513
514            public EntityIteratorImpl(Cursor cursor) {
515                super(cursor);
516            }
517
518            @Override
519            public Entity getEntityAndIncrementCursor(Cursor cursor) throws RemoteException {
520                // we expect the cursor is already at the row we need to read from
521                final long calendarId = cursor.getLong(cursor.getColumnIndexOrThrow(_ID));
522
523                // Create the content value
524                ContentValues cv = new ContentValues();
525                cv.put(_ID, calendarId);
526
527                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ACCOUNT_NAME);
528                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ACCOUNT_TYPE);
529
530                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, _SYNC_ID);
531                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DIRTY);
532                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, MUTATORS);
533
534                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC1);
535                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC2);
536                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC3);
537                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC4);
538                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC5);
539                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC6);
540                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC7);
541                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC8);
542                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC9);
543                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC10);
544
545                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, Calendars.NAME);
546                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
547                        Calendars.CALENDAR_DISPLAY_NAME);
548                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
549                        Calendars.CALENDAR_COLOR);
550                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
551                        Calendars.CALENDAR_COLOR_KEY);
552                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, CALENDAR_ACCESS_LEVEL);
553                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, VISIBLE);
554                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, SYNC_EVENTS);
555                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
556                        Calendars.CALENDAR_LOCATION);
557                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CALENDAR_TIME_ZONE);
558                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
559                        Calendars.OWNER_ACCOUNT);
560                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
561                        Calendars.CAN_ORGANIZER_RESPOND);
562                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
563                        Calendars.CAN_MODIFY_TIME_ZONE);
564                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
565                        Calendars.MAX_REMINDERS);
566                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
567                        Calendars.CAN_PARTIALLY_UPDATE);
568                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
569                        Calendars.ALLOWED_REMINDERS);
570
571                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, DELETED);
572
573                // Create the Entity from the ContentValue
574                Entity entity = new Entity(cv);
575
576                // Set cursor to next row
577                cursor.moveToNext();
578
579                // Return the created Entity
580                return entity;
581            }
582        }
583     }
584
585    /**
586     * Constants and helpers for the Calendars table, which contains details for
587     * individual calendars. <h3>Operations</h3> All operations can be done
588     * either as an app or as a sync adapter. To perform an operation as a sync
589     * adapter {@link #CALLER_IS_SYNCADAPTER} should be set to true and
590     * {@link #ACCOUNT_NAME} and {@link #ACCOUNT_TYPE} must be set in the Uri
591     * parameters. See
592     * {@link Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)}
593     * for details on adding parameters. Sync adapters have write access to more
594     * columns but are restricted to a single account at a time. Calendars are
595     * designed to be primarily managed by a sync adapter and inserting new
596     * calendars should be done as a sync adapter. For the most part, apps
597     * should only update calendars (such as changing the color or display
598     * name). If a local calendar is required an app can do so by inserting as a
599     * sync adapter and using an {@link #ACCOUNT_TYPE} of
600     * {@link #ACCOUNT_TYPE_LOCAL} .
601     * <dl>
602     * <dt><b>Insert</b></dt>
603     * <dd>When inserting a new calendar the following fields must be included:
604     * <ul>
605     * <li>{@link #ACCOUNT_NAME}</li>
606     * <li>{@link #ACCOUNT_TYPE}</li>
607     * <li>{@link #NAME}</li>
608     * <li>{@link #CALENDAR_DISPLAY_NAME}</li>
609     * <li>{@link #CALENDAR_COLOR}</li>
610     * <li>{@link #CALENDAR_ACCESS_LEVEL}</li>
611     * <li>{@link #OWNER_ACCOUNT}</li>
612     * </ul>
613     * The following fields are not required when inserting a Calendar but are
614     * generally a good idea to include:
615     * <ul>
616     * <li>{@link #SYNC_EVENTS} set to 1</li>
617     * <li>{@link #CALENDAR_TIME_ZONE}</li>
618     * <li>{@link #ALLOWED_REMINDERS}</li>
619     * <li>{@link #ALLOWED_AVAILABILITY}</li>
620     * <li>{@link #ALLOWED_ATTENDEE_TYPES}</li>
621     * </ul>
622     * <dt><b>Update</b></dt>
623     * <dd>To perform an update on a calendar the {@link #_ID} of the calendar
624     * should be provided either as an appended id to the Uri (
625     * {@link ContentUris#withAppendedId}) or as the first selection item--the
626     * selection should start with "_id=?" and the first selectionArg should be
627     * the _id of the calendar. Calendars may also be updated using a selection
628     * without the id. In general, the {@link #ACCOUNT_NAME} and
629     * {@link #ACCOUNT_TYPE} should not be changed after a calendar is created
630     * as this can cause issues for sync adapters.
631     * <dt><b>Delete</b></dt>
632     * <dd>Calendars can be deleted either by the {@link #_ID} as an appended id
633     * on the Uri or using any standard selection. Deleting a calendar should
634     * generally be handled by a sync adapter as it will remove the calendar
635     * from the database and all associated data (aka events).</dd>
636     * <dt><b>Query</b></dt>
637     * <dd>Querying the Calendars table will get you all information about a set
638     * of calendars. There will be one row returned for each calendar that
639     * matches the query selection, or at most a single row if the {@link #_ID}
640     * is appended to the Uri.</dd>
641     * </dl>
642     * <h3>Calendar Columns</h3> The following Calendar columns are writable by
643     * both an app and a sync adapter.
644     * <ul>
645     * <li>{@link #NAME}</li>
646     * <li>{@link #CALENDAR_DISPLAY_NAME}</li>
647     * <li>{@link #VISIBLE}</li>
648     * <li>{@link #SYNC_EVENTS}</li>
649     * </ul>
650     * The following Calendars columns are writable only by a sync adapter
651     * <ul>
652     * <li>{@link #ACCOUNT_NAME}</li>
653     * <li>{@link #ACCOUNT_TYPE}</li>
654     * <li>{@link #CALENDAR_COLOR}</li>
655     * <li>{@link #_SYNC_ID}</li>
656     * <li>{@link #DIRTY}</li>
657     * <li>{@link #MUTATORS}</li>
658     * <li>{@link #OWNER_ACCOUNT}</li>
659     * <li>{@link #MAX_REMINDERS}</li>
660     * <li>{@link #ALLOWED_REMINDERS}</li>
661     * <li>{@link #ALLOWED_AVAILABILITY}</li>
662     * <li>{@link #ALLOWED_ATTENDEE_TYPES}</li>
663     * <li>{@link #CAN_MODIFY_TIME_ZONE}</li>
664     * <li>{@link #CAN_ORGANIZER_RESPOND}</li>
665     * <li>{@link #CAN_PARTIALLY_UPDATE}</li>
666     * <li>{@link #CALENDAR_LOCATION}</li>
667     * <li>{@link #CALENDAR_TIME_ZONE}</li>
668     * <li>{@link #CALENDAR_ACCESS_LEVEL}</li>
669     * <li>{@link #DELETED}</li>
670     * <li>{@link #CAL_SYNC1}</li>
671     * <li>{@link #CAL_SYNC2}</li>
672     * <li>{@link #CAL_SYNC3}</li>
673     * <li>{@link #CAL_SYNC4}</li>
674     * <li>{@link #CAL_SYNC5}</li>
675     * <li>{@link #CAL_SYNC6}</li>
676     * <li>{@link #CAL_SYNC7}</li>
677     * <li>{@link #CAL_SYNC8}</li>
678     * <li>{@link #CAL_SYNC9}</li>
679     * <li>{@link #CAL_SYNC10}</li>
680     * </ul>
681     */
682    public static final class Calendars implements BaseColumns, SyncColumns, CalendarColumns {
683
684        /**
685         * This utility class cannot be instantiated
686         */
687        private Calendars() {}
688
689        /**
690         * The content:// style URL for accessing Calendars
691         */
692        @SuppressWarnings("hiding")
693        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/calendars");
694
695        /**
696         * The default sort order for this table
697         */
698        public static final String DEFAULT_SORT_ORDER = CALENDAR_DISPLAY_NAME;
699
700        /**
701         * The name of the calendar. Column name.
702         * <P>Type: TEXT</P>
703         */
704        public static final String NAME = "name";
705
706        /**
707         * The default location for the calendar. Column name.
708         * <P>Type: TEXT</P>
709         */
710        public static final String CALENDAR_LOCATION = "calendar_location";
711
712        /**
713         * These fields are only writable by a sync adapter. To modify them the
714         * caller must include {@link #CALLER_IS_SYNCADAPTER},
715         * {@link #ACCOUNT_NAME}, and {@link #ACCOUNT_TYPE} in the Uri's query
716         * parameters. TODO move to provider
717         *
718         * @hide
719         */
720        public static final String[] SYNC_WRITABLE_COLUMNS = new String[] {
721            ACCOUNT_NAME,
722            ACCOUNT_TYPE,
723            _SYNC_ID,
724            DIRTY,
725            MUTATORS,
726            OWNER_ACCOUNT,
727            MAX_REMINDERS,
728            ALLOWED_REMINDERS,
729            CAN_MODIFY_TIME_ZONE,
730            CAN_ORGANIZER_RESPOND,
731            CAN_PARTIALLY_UPDATE,
732            CALENDAR_LOCATION,
733            CALENDAR_TIME_ZONE,
734            CALENDAR_ACCESS_LEVEL,
735            DELETED,
736            CAL_SYNC1,
737            CAL_SYNC2,
738            CAL_SYNC3,
739            CAL_SYNC4,
740            CAL_SYNC5,
741            CAL_SYNC6,
742            CAL_SYNC7,
743            CAL_SYNC8,
744            CAL_SYNC9,
745            CAL_SYNC10,
746        };
747    }
748
749    /**
750     * Columns from the Attendees table that other tables join into themselves.
751     */
752    protected interface AttendeesColumns {
753
754        /**
755         * The id of the event. Column name.
756         * <P>Type: INTEGER</P>
757         */
758        public static final String EVENT_ID = "event_id";
759
760        /**
761         * The name of the attendee. Column name.
762         * <P>Type: STRING</P>
763         */
764        public static final String ATTENDEE_NAME = "attendeeName";
765
766        /**
767         * The email address of the attendee. Column name.
768         * <P>Type: STRING</P>
769         */
770        public static final String ATTENDEE_EMAIL = "attendeeEmail";
771
772        /**
773         * The relationship of the attendee to the user. Column name.
774         * <P>Type: INTEGER (one of {@link #RELATIONSHIP_ATTENDEE}, ...}.</P>
775         */
776        public static final String ATTENDEE_RELATIONSHIP = "attendeeRelationship";
777
778        public static final int RELATIONSHIP_NONE = 0;
779        public static final int RELATIONSHIP_ATTENDEE = 1;
780        public static final int RELATIONSHIP_ORGANIZER = 2;
781        public static final int RELATIONSHIP_PERFORMER = 3;
782        public static final int RELATIONSHIP_SPEAKER = 4;
783
784        /**
785         * The type of attendee. Column name.
786         * <P>
787         * Type: Integer (one of {@link #TYPE_NONE}, {@link #TYPE_REQUIRED},
788         * {@link #TYPE_OPTIONAL}, {@link #TYPE_RESOURCE})
789         * </P>
790         */
791        public static final String ATTENDEE_TYPE = "attendeeType";
792
793        public static final int TYPE_NONE = 0;
794        public static final int TYPE_REQUIRED = 1;
795        public static final int TYPE_OPTIONAL = 2;
796        /**
797         * This specifies that an attendee is a resource, like a room, a
798         * cabbage, or something and not an actual person.
799         */
800        public static final int TYPE_RESOURCE = 3;
801
802        /**
803         * The attendance status of the attendee. Column name.
804         * <P>Type: Integer (one of {@link #ATTENDEE_STATUS_ACCEPTED}, ...).</P>
805         */
806        public static final String ATTENDEE_STATUS = "attendeeStatus";
807
808        public static final int ATTENDEE_STATUS_NONE = 0;
809        public static final int ATTENDEE_STATUS_ACCEPTED = 1;
810        public static final int ATTENDEE_STATUS_DECLINED = 2;
811        public static final int ATTENDEE_STATUS_INVITED = 3;
812        public static final int ATTENDEE_STATUS_TENTATIVE = 4;
813
814        /**
815         * The identity of the attendee as referenced in
816         * {@link ContactsContract.CommonDataKinds.Identity#IDENTITY}.
817         * This is required only if {@link #ATTENDEE_ID_NAMESPACE} is present. Column name.
818         * <P>Type: STRING</P>
819         */
820        public static final String ATTENDEE_IDENTITY = "attendeeIdentity";
821
822        /**
823         * The identity name space of the attendee as referenced in
824         * {@link ContactsContract.CommonDataKinds.Identity#NAMESPACE}.
825         * This is required only if {@link #ATTENDEE_IDENTITY} is present. Column name.
826         * <P>Type: STRING</P>
827         */
828        public static final String ATTENDEE_ID_NAMESPACE = "attendeeIdNamespace";
829    }
830
831    /**
832     * Fields and helpers for interacting with Attendees. Each row of this table
833     * represents a single attendee or guest of an event. Calling
834     * {@link #query(ContentResolver, long, String[])} will return a list of attendees for
835     * the event with the given eventId. Both apps and sync adapters may write
836     * to this table. There are six writable fields and all of them except
837     * {@link #ATTENDEE_NAME} must be included when inserting a new attendee.
838     * They are:
839     * <ul>
840     * <li>{@link #EVENT_ID}</li>
841     * <li>{@link #ATTENDEE_NAME}</li>
842     * <li>{@link #ATTENDEE_EMAIL}</li>
843     * <li>{@link #ATTENDEE_RELATIONSHIP}</li>
844     * <li>{@link #ATTENDEE_TYPE}</li>
845     * <li>{@link #ATTENDEE_STATUS}</li>
846     * <li>{@link #ATTENDEE_IDENTITY}</li>
847     * <li>{@link #ATTENDEE_ID_NAMESPACE}</li>
848     * </ul>
849     */
850    public static final class Attendees implements BaseColumns, AttendeesColumns, EventsColumns {
851
852        /**
853         * The content:// style URL for accessing Attendees data
854         */
855        @SuppressWarnings("hiding")
856        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/attendees");
857        private static final String ATTENDEES_WHERE = Attendees.EVENT_ID + "=?";
858
859        /**
860         * This utility class cannot be instantiated
861         */
862        private Attendees() {}
863
864        /**
865         * Queries all attendees associated with the given event. This is a
866         * blocking call and should not be done on the UI thread.
867         *
868         * @param cr The content resolver to use for the query
869         * @param eventId The id of the event to retrieve attendees for
870         * @param projection the columns to return in the cursor
871         * @return A Cursor containing all attendees for the event
872         */
873        public static final Cursor query(ContentResolver cr, long eventId, String[] projection) {
874            String[] attArgs = {Long.toString(eventId)};
875            return cr.query(CONTENT_URI, projection, ATTENDEES_WHERE, attArgs /* selection args */,
876                    null /* sort order */);
877        }
878    }
879
880    /**
881     * Columns from the Events table that other tables join into themselves.
882     */
883    protected interface EventsColumns {
884
885        /**
886         * The {@link Calendars#_ID} of the calendar the event belongs to.
887         * Column name.
888         * <P>Type: INTEGER</P>
889         */
890        public static final String CALENDAR_ID = "calendar_id";
891
892        /**
893         * The title of the event. Column name.
894         * <P>Type: TEXT</P>
895         */
896        public static final String TITLE = "title";
897
898        /**
899         * The description of the event. Column name.
900         * <P>Type: TEXT</P>
901         */
902        public static final String DESCRIPTION = "description";
903
904        /**
905         * Where the event takes place. Column name.
906         * <P>Type: TEXT</P>
907         */
908        public static final String EVENT_LOCATION = "eventLocation";
909
910        /**
911         * A secondary color for the individual event. This should only be
912         * updated by the sync adapter for a given account.
913         * <P>Type: INTEGER</P>
914         */
915        public static final String EVENT_COLOR = "eventColor";
916
917        /**
918         * A secondary color key for the individual event. NULL or an empty
919         * string are reserved for indicating that the event does not use a key
920         * for looking up the color. The provider will update
921         * {@link #EVENT_COLOR} automatically when a valid key is written to
922         * this column. The key must reference an existing row of the
923         * {@link Colors} table. @see Colors
924         * <P>
925         * Type: TEXT
926         * </P>
927         */
928        public static final String EVENT_COLOR_KEY = "eventColor_index";
929
930        /**
931         * This will be {@link #EVENT_COLOR} if it is not null; otherwise, this will be
932         * {@link Calendars#CALENDAR_COLOR}.
933         * Read-only value. To modify, write to {@link #EVENT_COLOR} or
934         * {@link Calendars#CALENDAR_COLOR} directly.
935         *<P>
936         *     Type: INTEGER
937         *</P>
938         */
939        public static final String DISPLAY_COLOR = "displayColor";
940
941        /**
942         * The event status. Column name.
943         * <P>Type: INTEGER (one of {@link #STATUS_TENTATIVE}...)</P>
944         */
945        public static final String STATUS = "eventStatus";
946
947        public static final int STATUS_TENTATIVE = 0;
948        public static final int STATUS_CONFIRMED = 1;
949        public static final int STATUS_CANCELED = 2;
950
951        /**
952         * This is a copy of the attendee status for the owner of this event.
953         * This field is copied here so that we can efficiently filter out
954         * events that are declined without having to look in the Attendees
955         * table. Column name.
956         *
957         * <P>Type: INTEGER (int)</P>
958         */
959        public static final String SELF_ATTENDEE_STATUS = "selfAttendeeStatus";
960
961        /**
962         * This column is available for use by sync adapters. Column name.
963         * <P>Type: TEXT</P>
964         */
965        public static final String SYNC_DATA1 = "sync_data1";
966
967        /**
968         * This column is available for use by sync adapters. Column name.
969         * <P>Type: TEXT</P>
970         */
971        public static final String SYNC_DATA2 = "sync_data2";
972
973        /**
974         * This column is available for use by sync adapters. Column name.
975         * <P>Type: TEXT</P>
976         */
977        public static final String SYNC_DATA3 = "sync_data3";
978
979        /**
980         * This column is available for use by sync adapters. Column name.
981         * <P>Type: TEXT</P>
982         */
983        public static final String SYNC_DATA4 = "sync_data4";
984
985        /**
986         * This column is available for use by sync adapters. Column name.
987         * <P>Type: TEXT</P>
988         */
989        public static final String SYNC_DATA5 = "sync_data5";
990
991        /**
992         * This column is available for use by sync adapters. Column name.
993         * <P>Type: TEXT</P>
994         */
995        public static final String SYNC_DATA6 = "sync_data6";
996
997        /**
998         * This column is available for use by sync adapters. Column name.
999         * <P>Type: TEXT</P>
1000         */
1001        public static final String SYNC_DATA7 = "sync_data7";
1002
1003        /**
1004         * This column is available for use by sync adapters. Column name.
1005         * <P>Type: TEXT</P>
1006         */
1007        public static final String SYNC_DATA8 = "sync_data8";
1008
1009        /**
1010         * This column is available for use by sync adapters. Column name.
1011         * <P>Type: TEXT</P>
1012         */
1013        public static final String SYNC_DATA9 = "sync_data9";
1014
1015        /**
1016         * This column is available for use by sync adapters. Column name.
1017         * <P>Type: TEXT</P>
1018         */
1019        public static final String SYNC_DATA10 = "sync_data10";
1020
1021        /**
1022         * Used to indicate that a row is not a real event but an original copy of a locally
1023         * modified event. A copy is made when an event changes from non-dirty to dirty and the
1024         * event is on a calendar with {@link Calendars#CAN_PARTIALLY_UPDATE} set to 1. This copy
1025         * does not get expanded in the instances table and is only visible in queries made by a
1026         * sync adapter. The copy gets removed when the event is changed back to non-dirty by a
1027         * sync adapter.
1028         * <P>Type: INTEGER (boolean)</P>
1029         */
1030        public static final String LAST_SYNCED = "lastSynced";
1031
1032        /**
1033         * The time the event starts in UTC millis since epoch. Column name.
1034         * <P>Type: INTEGER (long; millis since epoch)</P>
1035         */
1036        public static final String DTSTART = "dtstart";
1037
1038        /**
1039         * The time the event ends in UTC millis since epoch. Column name.
1040         * <P>Type: INTEGER (long; millis since epoch)</P>
1041         */
1042        public static final String DTEND = "dtend";
1043
1044        /**
1045         * The duration of the event in RFC2445 format. Column name.
1046         * <P>Type: TEXT (duration in RFC2445 format)</P>
1047         */
1048        public static final String DURATION = "duration";
1049
1050        /**
1051         * The timezone for the event. Column name.
1052         * <P>Type: TEXT</P>
1053         */
1054        public static final String EVENT_TIMEZONE = "eventTimezone";
1055
1056        /**
1057         * The timezone for the end time of the event. Column name.
1058         * <P>Type: TEXT</P>
1059         */
1060        public static final String EVENT_END_TIMEZONE = "eventEndTimezone";
1061
1062        /**
1063         * Is the event all day (time zone independent). Column name.
1064         * <P>Type: INTEGER (boolean)</P>
1065         */
1066        public static final String ALL_DAY = "allDay";
1067
1068        /**
1069         * Defines how the event shows up for others when the calendar is
1070         * shared. Column name.
1071         * <P>Type: INTEGER (One of {@link #ACCESS_DEFAULT}, ...)</P>
1072         */
1073        public static final String ACCESS_LEVEL = "accessLevel";
1074
1075        /**
1076         * Default access is controlled by the server and will be treated as
1077         * public on the device.
1078         */
1079        public static final int ACCESS_DEFAULT = 0;
1080        /**
1081         * Confidential is not used by the app.
1082         */
1083        public static final int ACCESS_CONFIDENTIAL = 1;
1084        /**
1085         * Private shares the event as a free/busy slot with no details.
1086         */
1087        public static final int ACCESS_PRIVATE = 2;
1088        /**
1089         * Public makes the contents visible to anyone with access to the
1090         * calendar.
1091         */
1092        public static final int ACCESS_PUBLIC = 3;
1093
1094        /**
1095         * If this event counts as busy time or is still free time that can be
1096         * scheduled over. Column name.
1097         * <P>
1098         * Type: INTEGER (One of {@link #AVAILABILITY_BUSY},
1099         * {@link #AVAILABILITY_FREE}, {@link #AVAILABILITY_TENTATIVE})
1100         * </P>
1101         */
1102        public static final String AVAILABILITY = "availability";
1103
1104        /**
1105         * Indicates that this event takes up time and will conflict with other
1106         * events.
1107         */
1108        public static final int AVAILABILITY_BUSY = 0;
1109        /**
1110         * Indicates that this event is free time and will not conflict with
1111         * other events.
1112         */
1113        public static final int AVAILABILITY_FREE = 1;
1114        /**
1115         * Indicates that the owner's availability may change, but should be
1116         * considered busy time that will conflict.
1117         */
1118        public static final int AVAILABILITY_TENTATIVE = 2;
1119
1120        /**
1121         * Whether the event has an alarm or not. Column name.
1122         * <P>Type: INTEGER (boolean)</P>
1123         */
1124        public static final String HAS_ALARM = "hasAlarm";
1125
1126        /**
1127         * Whether the event has extended properties or not. Column name.
1128         * <P>Type: INTEGER (boolean)</P>
1129         */
1130        public static final String HAS_EXTENDED_PROPERTIES = "hasExtendedProperties";
1131
1132        /**
1133         * The recurrence rule for the event. Column name.
1134         * <P>Type: TEXT</P>
1135         */
1136        public static final String RRULE = "rrule";
1137
1138        /**
1139         * The recurrence dates for the event. Column name.
1140         * <P>Type: TEXT</P>
1141         */
1142        public static final String RDATE = "rdate";
1143
1144        /**
1145         * The recurrence exception rule for the event. Column name.
1146         * <P>Type: TEXT</P>
1147         */
1148        public static final String EXRULE = "exrule";
1149
1150        /**
1151         * The recurrence exception dates for the event. Column name.
1152         * <P>Type: TEXT</P>
1153         */
1154        public static final String EXDATE = "exdate";
1155
1156        /**
1157         * The {@link Events#_ID} of the original recurring event for which this
1158         * event is an exception. Column name.
1159         * <P>Type: TEXT</P>
1160         */
1161        public static final String ORIGINAL_ID = "original_id";
1162
1163        /**
1164         * The _sync_id of the original recurring event for which this event is
1165         * an exception. The provider should keep the original_id in sync when
1166         * this is updated. Column name.
1167         * <P>Type: TEXT</P>
1168         */
1169        public static final String ORIGINAL_SYNC_ID = "original_sync_id";
1170
1171        /**
1172         * The original instance time of the recurring event for which this
1173         * event is an exception. Column name.
1174         * <P>Type: INTEGER (long; millis since epoch)</P>
1175         */
1176        public static final String ORIGINAL_INSTANCE_TIME = "originalInstanceTime";
1177
1178        /**
1179         * The allDay status (true or false) of the original recurring event
1180         * for which this event is an exception. Column name.
1181         * <P>Type: INTEGER (boolean)</P>
1182         */
1183        public static final String ORIGINAL_ALL_DAY = "originalAllDay";
1184
1185        /**
1186         * The last date this event repeats on, or NULL if it never ends. Column
1187         * name.
1188         * <P>Type: INTEGER (long; millis since epoch)</P>
1189         */
1190        public static final String LAST_DATE = "lastDate";
1191
1192        /**
1193         * Whether the event has attendee information.  True if the event
1194         * has full attendee data, false if the event has information about
1195         * self only. Column name.
1196         * <P>Type: INTEGER (boolean)</P>
1197         */
1198        public static final String HAS_ATTENDEE_DATA = "hasAttendeeData";
1199
1200        /**
1201         * Whether guests can modify the event. Column name.
1202         * <P>Type: INTEGER (boolean)</P>
1203         */
1204        public static final String GUESTS_CAN_MODIFY = "guestsCanModify";
1205
1206        /**
1207         * Whether guests can invite other guests. Column name.
1208         * <P>Type: INTEGER (boolean)</P>
1209         */
1210        public static final String GUESTS_CAN_INVITE_OTHERS = "guestsCanInviteOthers";
1211
1212        /**
1213         * Whether guests can see the list of attendees. Column name.
1214         * <P>Type: INTEGER (boolean)</P>
1215         */
1216        public static final String GUESTS_CAN_SEE_GUESTS = "guestsCanSeeGuests";
1217
1218        /**
1219         * Email of the organizer (owner) of the event. Column name.
1220         * <P>Type: STRING</P>
1221         */
1222        public static final String ORGANIZER = "organizer";
1223
1224        /**
1225         * Are we the organizer of this event. If this column is not explicitly set, the provider
1226         * will return 1 if {@link #ORGANIZER} is equal to {@link Calendars#OWNER_ACCOUNT}.
1227         * Column name.
1228         * <P>Type: STRING</P>
1229         */
1230        public static final String IS_ORGANIZER = "isOrganizer";
1231
1232        /**
1233         * Whether the user can invite others to the event. The
1234         * GUESTS_CAN_INVITE_OTHERS is a setting that applies to an arbitrary
1235         * guest, while CAN_INVITE_OTHERS indicates if the user can invite
1236         * others (either through GUESTS_CAN_INVITE_OTHERS or because the user
1237         * has modify access to the event). Column name.
1238         * <P>Type: INTEGER (boolean, readonly)</P>
1239         */
1240        public static final String CAN_INVITE_OTHERS = "canInviteOthers";
1241
1242        /**
1243         * The package name of the custom app that can provide a richer
1244         * experience for the event. See the ACTION TYPE
1245         * {@link CalendarContract#ACTION_HANDLE_CUSTOM_EVENT} for details.
1246         * Column name.
1247         * <P> Type: TEXT </P>
1248         */
1249        public static final String CUSTOM_APP_PACKAGE = "customAppPackage";
1250
1251        /**
1252         * The URI used by the custom app for the event. Column name.
1253         * <P>Type: TEXT</P>
1254         */
1255        public static final String CUSTOM_APP_URI = "customAppUri";
1256
1257        /**
1258         * The UID for events added from the RFC 2445 iCalendar format.
1259         * Column name.
1260         * <P>Type: TEXT</P>
1261         */
1262        public static final String UID_2445 = "uid2445";
1263    }
1264
1265    /**
1266     * Class that represents an Event Entity. There is one entry per event.
1267     * Recurring events show up as a single entry. This is a helper class to
1268     * make batch operations easier. A {@link ContentResolver} or
1269     * {@link ContentProviderClient} is required as the helper does additional
1270     * queries to add reminders and attendees to each entry.
1271     */
1272    public static final class EventsEntity implements BaseColumns, SyncColumns, EventsColumns {
1273        /**
1274         * The content:// style URL for this table
1275         */
1276        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
1277                "/event_entities");
1278
1279        /**
1280         * This utility class cannot be instantiated
1281         */
1282        private EventsEntity() {}
1283
1284        /**
1285         * Creates a new iterator for events
1286         *
1287         * @param cursor An event query
1288         * @param resolver For performing additional queries
1289         * @return an EntityIterator containing one entity per event in the
1290         *         cursor
1291         */
1292        public static EntityIterator newEntityIterator(Cursor cursor, ContentResolver resolver) {
1293            return new EntityIteratorImpl(cursor, resolver);
1294        }
1295
1296        /**
1297         * Creates a new iterator for events
1298         *
1299         * @param cursor An event query
1300         * @param provider For performing additional queries
1301         * @return an EntityIterator containing one entity per event in the
1302         *         cursor
1303         */
1304        public static EntityIterator newEntityIterator(Cursor cursor,
1305                ContentProviderClient provider) {
1306            return new EntityIteratorImpl(cursor, provider);
1307        }
1308
1309        private static class EntityIteratorImpl extends CursorEntityIterator {
1310            private final ContentResolver mResolver;
1311            private final ContentProviderClient mProvider;
1312
1313            private static final String[] REMINDERS_PROJECTION = new String[] {
1314                    Reminders.MINUTES,
1315                    Reminders.METHOD,
1316            };
1317            private static final int COLUMN_MINUTES = 0;
1318            private static final int COLUMN_METHOD = 1;
1319
1320            private static final String[] ATTENDEES_PROJECTION = new String[] {
1321                    Attendees.ATTENDEE_NAME,
1322                    Attendees.ATTENDEE_EMAIL,
1323                    Attendees.ATTENDEE_RELATIONSHIP,
1324                    Attendees.ATTENDEE_TYPE,
1325                    Attendees.ATTENDEE_STATUS,
1326                    Attendees.ATTENDEE_IDENTITY,
1327                    Attendees.ATTENDEE_ID_NAMESPACE
1328            };
1329            private static final int COLUMN_ATTENDEE_NAME = 0;
1330            private static final int COLUMN_ATTENDEE_EMAIL = 1;
1331            private static final int COLUMN_ATTENDEE_RELATIONSHIP = 2;
1332            private static final int COLUMN_ATTENDEE_TYPE = 3;
1333            private static final int COLUMN_ATTENDEE_STATUS = 4;
1334            private static final int COLUMN_ATTENDEE_IDENTITY = 5;
1335            private static final int COLUMN_ATTENDEE_ID_NAMESPACE = 6;
1336
1337            private static final String[] EXTENDED_PROJECTION = new String[] {
1338                    ExtendedProperties._ID,
1339                    ExtendedProperties.NAME,
1340                    ExtendedProperties.VALUE
1341            };
1342            private static final int COLUMN_ID = 0;
1343            private static final int COLUMN_NAME = 1;
1344            private static final int COLUMN_VALUE = 2;
1345
1346            private static final String WHERE_EVENT_ID = "event_id=?";
1347
1348            public EntityIteratorImpl(Cursor cursor, ContentResolver resolver) {
1349                super(cursor);
1350                mResolver = resolver;
1351                mProvider = null;
1352            }
1353
1354            public EntityIteratorImpl(Cursor cursor, ContentProviderClient provider) {
1355                super(cursor);
1356                mResolver = null;
1357                mProvider = provider;
1358            }
1359
1360            @Override
1361            public Entity getEntityAndIncrementCursor(Cursor cursor) throws RemoteException {
1362                // we expect the cursor is already at the row we need to read from
1363                final long eventId = cursor.getLong(cursor.getColumnIndexOrThrow(Events._ID));
1364                ContentValues cv = new ContentValues();
1365                cv.put(Events._ID, eventId);
1366                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, CALENDAR_ID);
1367                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, TITLE);
1368                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, DESCRIPTION);
1369                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_LOCATION);
1370                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, STATUS);
1371                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, SELF_ATTENDEE_STATUS);
1372                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DTSTART);
1373                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DTEND);
1374                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, DURATION);
1375                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_TIMEZONE);
1376                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_END_TIMEZONE);
1377                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ALL_DAY);
1378                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, ACCESS_LEVEL);
1379                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, AVAILABILITY);
1380                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, EVENT_COLOR);
1381                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_COLOR_KEY);
1382                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, HAS_ALARM);
1383                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
1384                        HAS_EXTENDED_PROPERTIES);
1385                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, RRULE);
1386                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, RDATE);
1387                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EXRULE);
1388                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EXDATE);
1389                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORIGINAL_SYNC_ID);
1390                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORIGINAL_ID);
1391                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv,
1392                        ORIGINAL_INSTANCE_TIME);
1393                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, ORIGINAL_ALL_DAY);
1394                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, LAST_DATE);
1395                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, HAS_ATTENDEE_DATA);
1396                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
1397                        GUESTS_CAN_INVITE_OTHERS);
1398                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, GUESTS_CAN_MODIFY);
1399                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, GUESTS_CAN_SEE_GUESTS);
1400                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CUSTOM_APP_PACKAGE);
1401                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CUSTOM_APP_URI);
1402                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, UID_2445);
1403                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORGANIZER);
1404                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, IS_ORGANIZER);
1405                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, _SYNC_ID);
1406                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DIRTY);
1407                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, MUTATORS);
1408                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, LAST_SYNCED);
1409                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, DELETED);
1410                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA1);
1411                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA2);
1412                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA3);
1413                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA4);
1414                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA5);
1415                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA6);
1416                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA7);
1417                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA8);
1418                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA9);
1419                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA10);
1420                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC1);
1421                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC2);
1422                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC3);
1423                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC4);
1424                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC5);
1425                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC6);
1426                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC7);
1427                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC8);
1428                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC9);
1429                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC10);
1430
1431                Entity entity = new Entity(cv);
1432                Cursor subCursor;
1433                if (mResolver != null) {
1434                    subCursor = mResolver.query(Reminders.CONTENT_URI, REMINDERS_PROJECTION,
1435                            WHERE_EVENT_ID,
1436                            new String[] { Long.toString(eventId) }  /* selectionArgs */,
1437                            null /* sortOrder */);
1438                } else {
1439                    subCursor = mProvider.query(Reminders.CONTENT_URI, REMINDERS_PROJECTION,
1440                            WHERE_EVENT_ID,
1441                            new String[] { Long.toString(eventId) }  /* selectionArgs */,
1442                            null /* sortOrder */);
1443                }
1444                try {
1445                    while (subCursor.moveToNext()) {
1446                        ContentValues reminderValues = new ContentValues();
1447                        reminderValues.put(Reminders.MINUTES, subCursor.getInt(COLUMN_MINUTES));
1448                        reminderValues.put(Reminders.METHOD, subCursor.getInt(COLUMN_METHOD));
1449                        entity.addSubValue(Reminders.CONTENT_URI, reminderValues);
1450                    }
1451                } finally {
1452                    subCursor.close();
1453                }
1454
1455                if (mResolver != null) {
1456                    subCursor = mResolver.query(Attendees.CONTENT_URI, ATTENDEES_PROJECTION,
1457                            WHERE_EVENT_ID,
1458                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1459                            null /* sortOrder */);
1460                } else {
1461                    subCursor = mProvider.query(Attendees.CONTENT_URI, ATTENDEES_PROJECTION,
1462                            WHERE_EVENT_ID,
1463                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1464                            null /* sortOrder */);
1465                }
1466                try {
1467                    while (subCursor.moveToNext()) {
1468                        ContentValues attendeeValues = new ContentValues();
1469                        attendeeValues.put(Attendees.ATTENDEE_NAME,
1470                                subCursor.getString(COLUMN_ATTENDEE_NAME));
1471                        attendeeValues.put(Attendees.ATTENDEE_EMAIL,
1472                                subCursor.getString(COLUMN_ATTENDEE_EMAIL));
1473                        attendeeValues.put(Attendees.ATTENDEE_RELATIONSHIP,
1474                                subCursor.getInt(COLUMN_ATTENDEE_RELATIONSHIP));
1475                        attendeeValues.put(Attendees.ATTENDEE_TYPE,
1476                                subCursor.getInt(COLUMN_ATTENDEE_TYPE));
1477                        attendeeValues.put(Attendees.ATTENDEE_STATUS,
1478                                subCursor.getInt(COLUMN_ATTENDEE_STATUS));
1479                        attendeeValues.put(Attendees.ATTENDEE_IDENTITY,
1480                                subCursor.getString(COLUMN_ATTENDEE_IDENTITY));
1481                        attendeeValues.put(Attendees.ATTENDEE_ID_NAMESPACE,
1482                                subCursor.getString(COLUMN_ATTENDEE_ID_NAMESPACE));
1483                        entity.addSubValue(Attendees.CONTENT_URI, attendeeValues);
1484                    }
1485                } finally {
1486                    subCursor.close();
1487                }
1488
1489                if (mResolver != null) {
1490                    subCursor = mResolver.query(ExtendedProperties.CONTENT_URI, EXTENDED_PROJECTION,
1491                            WHERE_EVENT_ID,
1492                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1493                            null /* sortOrder */);
1494                } else {
1495                    subCursor = mProvider.query(ExtendedProperties.CONTENT_URI, EXTENDED_PROJECTION,
1496                            WHERE_EVENT_ID,
1497                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1498                            null /* sortOrder */);
1499                }
1500                try {
1501                    while (subCursor.moveToNext()) {
1502                        ContentValues extendedValues = new ContentValues();
1503                        extendedValues.put(ExtendedProperties._ID,
1504                                subCursor.getString(COLUMN_ID));
1505                        extendedValues.put(ExtendedProperties.NAME,
1506                                subCursor.getString(COLUMN_NAME));
1507                        extendedValues.put(ExtendedProperties.VALUE,
1508                                subCursor.getString(COLUMN_VALUE));
1509                        entity.addSubValue(ExtendedProperties.CONTENT_URI, extendedValues);
1510                    }
1511                } finally {
1512                    subCursor.close();
1513                }
1514
1515                cursor.moveToNext();
1516                return entity;
1517            }
1518        }
1519    }
1520
1521    /**
1522     * Constants and helpers for the Events table, which contains details for
1523     * individual events. <h3>Operations</h3> All operations can be done either
1524     * as an app or as a sync adapter. To perform an operation as a sync adapter
1525     * {@link #CALLER_IS_SYNCADAPTER} should be set to true and
1526     * {@link #ACCOUNT_NAME} and {@link #ACCOUNT_TYPE} must be set in the Uri
1527     * parameters. See
1528     * {@link Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)}
1529     * for details on adding parameters. Sync adapters have write access to more
1530     * columns but are restricted to a single account at a time.
1531     * <dl>
1532     * <dt><b>Insert</b></dt>
1533     * <dd>When inserting a new event the following fields must be included:
1534     * <ul>
1535     * <li>dtstart</li>
1536     * <li>dtend if the event is non-recurring</li>
1537     * <li>duration if the event is recurring</li>
1538     * <li>rrule or rdate if the event is recurring</li>
1539     * <li>eventTimezone</li>
1540     * <li>a calendar_id</li>
1541     * </ul>
1542     * There are also further requirements when inserting or updating an event.
1543     * See the section on Writing to Events.</dd>
1544     * <dt><b>Update</b></dt>
1545     * <dd>To perform an update of an Event the {@link Events#_ID} of the event
1546     * should be provided either as an appended id to the Uri (
1547     * {@link ContentUris#withAppendedId}) or as the first selection item--the
1548     * selection should start with "_id=?" and the first selectionArg should be
1549     * the _id of the event. Updates may also be done using a selection and no
1550     * id. Updating an event must respect the same rules as inserting and is
1551     * further restricted in the fields that can be written. See the section on
1552     * Writing to Events.</dd>
1553     * <dt><b>Delete</b></dt>
1554     * <dd>Events can be deleted either by the {@link Events#_ID} as an appended
1555     * id on the Uri or using any standard selection. If an appended id is used
1556     * a selection is not allowed. There are two versions of delete: as an app
1557     * and as a sync adapter. An app delete will set the deleted column on an
1558     * event and remove all instances of that event. A sync adapter delete will
1559     * remove the event from the database and all associated data.</dd>
1560     * <dt><b>Query</b></dt>
1561     * <dd>Querying the Events table will get you all information about a set of
1562     * events except their reminders, attendees, and extended properties. There
1563     * will be one row returned for each event that matches the query selection,
1564     * or at most a single row if the {@link Events#_ID} is appended to the Uri.
1565     * Recurring events will only return a single row regardless of the number
1566     * of times that event repeats.</dd>
1567     * </dl>
1568     * <h3>Writing to Events</h3> There are further restrictions on all Updates
1569     * and Inserts in the Events table:
1570     * <ul>
1571     * <li>If allDay is set to 1 eventTimezone must be {@link Time#TIMEZONE_UTC}
1572     * and the time must correspond to a midnight boundary.</li>
1573     * <li>Exceptions are not allowed to recur. If rrule or rdate is not empty,
1574     * original_id and original_sync_id must be empty.</li>
1575     * <li>In general a calendar_id should not be modified after insertion. This
1576     * is not explicitly forbidden but many sync adapters will not behave in an
1577     * expected way if the calendar_id is modified.</li>
1578     * </ul>
1579     * The following Events columns are writable by both an app and a sync
1580     * adapter.
1581     * <ul>
1582     * <li>{@link #CALENDAR_ID}</li>
1583     * <li>{@link #ORGANIZER}</li>
1584     * <li>{@link #TITLE}</li>
1585     * <li>{@link #EVENT_LOCATION}</li>
1586     * <li>{@link #DESCRIPTION}</li>
1587     * <li>{@link #EVENT_COLOR}</li>
1588     * <li>{@link #DTSTART}</li>
1589     * <li>{@link #DTEND}</li>
1590     * <li>{@link #EVENT_TIMEZONE}</li>
1591     * <li>{@link #EVENT_END_TIMEZONE}</li>
1592     * <li>{@link #DURATION}</li>
1593     * <li>{@link #ALL_DAY}</li>
1594     * <li>{@link #RRULE}</li>
1595     * <li>{@link #RDATE}</li>
1596     * <li>{@link #EXRULE}</li>
1597     * <li>{@link #EXDATE}</li>
1598     * <li>{@link #ORIGINAL_ID}</li>
1599     * <li>{@link #ORIGINAL_SYNC_ID}</li>
1600     * <li>{@link #ORIGINAL_INSTANCE_TIME}</li>
1601     * <li>{@link #ORIGINAL_ALL_DAY}</li>
1602     * <li>{@link #ACCESS_LEVEL}</li>
1603     * <li>{@link #AVAILABILITY}</li>
1604     * <li>{@link #GUESTS_CAN_MODIFY}</li>
1605     * <li>{@link #GUESTS_CAN_INVITE_OTHERS}</li>
1606     * <li>{@link #GUESTS_CAN_SEE_GUESTS}</li>
1607     * <li>{@link #CUSTOM_APP_PACKAGE}</li>
1608     * <li>{@link #CUSTOM_APP_URI}</li>
1609     * <li>{@link #UID_2445}</li>
1610     * </ul>
1611     * The following Events columns are writable only by a sync adapter
1612     * <ul>
1613     * <li>{@link #DIRTY}</li>
1614     * <li>{@link #MUTATORS}</li>
1615     * <li>{@link #_SYNC_ID}</li>
1616     * <li>{@link #SYNC_DATA1}</li>
1617     * <li>{@link #SYNC_DATA2}</li>
1618     * <li>{@link #SYNC_DATA3}</li>
1619     * <li>{@link #SYNC_DATA4}</li>
1620     * <li>{@link #SYNC_DATA5}</li>
1621     * <li>{@link #SYNC_DATA6}</li>
1622     * <li>{@link #SYNC_DATA7}</li>
1623     * <li>{@link #SYNC_DATA8}</li>
1624     * <li>{@link #SYNC_DATA9}</li>
1625     * <li>{@link #SYNC_DATA10}</li>
1626     * </ul>
1627     * The remaining columns are either updated by the provider only or are
1628     * views into other tables and cannot be changed through the Events table.
1629     */
1630    public static final class Events implements BaseColumns, SyncColumns, EventsColumns,
1631            CalendarColumns {
1632
1633        /**
1634         * The content:// style URL for interacting with events. Appending an
1635         * event id using {@link ContentUris#withAppendedId(Uri, long)} will
1636         * specify a single event.
1637         */
1638        @SuppressWarnings("hiding")
1639        public static final Uri CONTENT_URI =
1640                Uri.parse("content://" + AUTHORITY + "/events");
1641
1642        /**
1643         * The content:// style URI for recurring event exceptions.  Insertions require an
1644         * appended event ID.  Deletion of exceptions requires both the original event ID and
1645         * the exception event ID (see {@link Uri.Builder#appendPath}).
1646         */
1647        public static final Uri CONTENT_EXCEPTION_URI =
1648                Uri.parse("content://" + AUTHORITY + "/exception");
1649
1650        /**
1651         * This utility class cannot be instantiated
1652         */
1653        private Events() {}
1654
1655        /**
1656         * The default sort order for this table
1657         */
1658        private static final String DEFAULT_SORT_ORDER = "";
1659
1660        /**
1661         * These are columns that should only ever be updated by the provider,
1662         * either because they are views mapped to another table or because they
1663         * are used for provider only functionality. TODO move to provider
1664         *
1665         * @hide
1666         */
1667        public static String[] PROVIDER_WRITABLE_COLUMNS = new String[] {
1668                ACCOUNT_NAME,
1669                ACCOUNT_TYPE,
1670                CAL_SYNC1,
1671                CAL_SYNC2,
1672                CAL_SYNC3,
1673                CAL_SYNC4,
1674                CAL_SYNC5,
1675                CAL_SYNC6,
1676                CAL_SYNC7,
1677                CAL_SYNC8,
1678                CAL_SYNC9,
1679                CAL_SYNC10,
1680                ALLOWED_REMINDERS,
1681                ALLOWED_ATTENDEE_TYPES,
1682                ALLOWED_AVAILABILITY,
1683                CALENDAR_ACCESS_LEVEL,
1684                CALENDAR_COLOR,
1685                CALENDAR_TIME_ZONE,
1686                CAN_MODIFY_TIME_ZONE,
1687                CAN_ORGANIZER_RESPOND,
1688                CALENDAR_DISPLAY_NAME,
1689                CAN_PARTIALLY_UPDATE,
1690                SYNC_EVENTS,
1691                VISIBLE,
1692        };
1693
1694        /**
1695         * These fields are only writable by a sync adapter. To modify them the
1696         * caller must include CALLER_IS_SYNCADAPTER, _SYNC_ACCOUNT, and
1697         * _SYNC_ACCOUNT_TYPE in the query parameters. TODO move to provider.
1698         *
1699         * @hide
1700         */
1701        public static final String[] SYNC_WRITABLE_COLUMNS = new String[] {
1702            _SYNC_ID,
1703            DIRTY,
1704            MUTATORS,
1705            SYNC_DATA1,
1706            SYNC_DATA2,
1707            SYNC_DATA3,
1708            SYNC_DATA4,
1709            SYNC_DATA5,
1710            SYNC_DATA6,
1711            SYNC_DATA7,
1712            SYNC_DATA8,
1713            SYNC_DATA9,
1714            SYNC_DATA10,
1715        };
1716    }
1717
1718    /**
1719     * Fields and helpers for interacting with Instances. An instance is a
1720     * single occurrence of an event including time zone specific start and end
1721     * days and minutes. The instances table is not writable and only provides a
1722     * way to query event occurrences.
1723     */
1724    public static final class Instances implements BaseColumns, EventsColumns, CalendarColumns {
1725
1726        private static final String WHERE_CALENDARS_SELECTED = Calendars.VISIBLE + "=?";
1727        private static final String[] WHERE_CALENDARS_ARGS = {
1728            "1"
1729        };
1730
1731        /**
1732         * This utility class cannot be instantiated
1733         */
1734        private Instances() {}
1735
1736        /**
1737         * Performs a query to return all visible instances in the given range.
1738         * This is a blocking function and should not be done on the UI thread.
1739         * This will cause an expansion of recurring events to fill this time
1740         * range if they are not already expanded and will slow down for larger
1741         * time ranges with many recurring events.
1742         *
1743         * @param cr The ContentResolver to use for the query
1744         * @param projection The columns to return
1745         * @param begin The start of the time range to query in UTC millis since
1746         *            epoch
1747         * @param end The end of the time range to query in UTC millis since
1748         *            epoch
1749         * @return A Cursor containing all instances in the given range
1750         */
1751        public static final Cursor query(ContentResolver cr, String[] projection,
1752                                         long begin, long end) {
1753            Uri.Builder builder = CONTENT_URI.buildUpon();
1754            ContentUris.appendId(builder, begin);
1755            ContentUris.appendId(builder, end);
1756            return cr.query(builder.build(), projection, WHERE_CALENDARS_SELECTED,
1757                    WHERE_CALENDARS_ARGS, DEFAULT_SORT_ORDER);
1758        }
1759
1760        /**
1761         * Performs a query to return all visible instances in the given range
1762         * that match the given query. This is a blocking function and should
1763         * not be done on the UI thread. This will cause an expansion of
1764         * recurring events to fill this time range if they are not already
1765         * expanded and will slow down for larger time ranges with many
1766         * recurring events.
1767         *
1768         * @param cr The ContentResolver to use for the query
1769         * @param projection The columns to return
1770         * @param begin The start of the time range to query in UTC millis since
1771         *            epoch
1772         * @param end The end of the time range to query in UTC millis since
1773         *            epoch
1774         * @param searchQuery A string of space separated search terms. Segments
1775         *            enclosed by double quotes will be treated as a single
1776         *            term.
1777         * @return A Cursor of instances matching the search terms in the given
1778         *         time range
1779         */
1780        public static final Cursor query(ContentResolver cr, String[] projection,
1781                                         long begin, long end, String searchQuery) {
1782            Uri.Builder builder = CONTENT_SEARCH_URI.buildUpon();
1783            ContentUris.appendId(builder, begin);
1784            ContentUris.appendId(builder, end);
1785            builder = builder.appendPath(searchQuery);
1786            return cr.query(builder.build(), projection, WHERE_CALENDARS_SELECTED,
1787                    WHERE_CALENDARS_ARGS, DEFAULT_SORT_ORDER);
1788        }
1789
1790        /**
1791         * The content:// style URL for querying an instance range. The begin
1792         * and end of the range to query should be added as path segments if
1793         * this is used directly.
1794         */
1795        @SuppressWarnings("hiding")
1796        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
1797                "/instances/when");
1798        /**
1799         * The content:// style URL for querying an instance range by Julian
1800         * Day. The start and end day should be added as path segments if this
1801         * is used directly.
1802         */
1803        public static final Uri CONTENT_BY_DAY_URI =
1804            Uri.parse("content://" + AUTHORITY + "/instances/whenbyday");
1805        /**
1806         * The content:// style URL for querying an instance range with a search
1807         * term. The begin, end, and search string should be appended as path
1808         * segments if this is used directly.
1809         */
1810        public static final Uri CONTENT_SEARCH_URI = Uri.parse("content://" + AUTHORITY +
1811                "/instances/search");
1812        /**
1813         * The content:// style URL for querying an instance range with a search
1814         * term. The start day, end day, and search string should be appended as
1815         * path segments if this is used directly.
1816         */
1817        public static final Uri CONTENT_SEARCH_BY_DAY_URI =
1818            Uri.parse("content://" + AUTHORITY + "/instances/searchbyday");
1819
1820        /**
1821         * The default sort order for this table.
1822         */
1823        private static final String DEFAULT_SORT_ORDER = "begin ASC";
1824
1825        /**
1826         * The beginning time of the instance, in UTC milliseconds. Column name.
1827         * <P>Type: INTEGER (long; millis since epoch)</P>
1828         */
1829        public static final String BEGIN = "begin";
1830
1831        /**
1832         * The ending time of the instance, in UTC milliseconds. Column name.
1833         * <P>Type: INTEGER (long; millis since epoch)</P>
1834         */
1835        public static final String END = "end";
1836
1837        /**
1838         * The _id of the event for this instance. Column name.
1839         * <P>Type: INTEGER (long, foreign key to the Events table)</P>
1840         */
1841        public static final String EVENT_ID = "event_id";
1842
1843        /**
1844         * The Julian start day of the instance, relative to the local time
1845         * zone. Column name.
1846         * <P>Type: INTEGER (int)</P>
1847         */
1848        public static final String START_DAY = "startDay";
1849
1850        /**
1851         * The Julian end day of the instance, relative to the local time
1852         * zone. Column name.
1853         * <P>Type: INTEGER (int)</P>
1854         */
1855        public static final String END_DAY = "endDay";
1856
1857        /**
1858         * The start minute of the instance measured from midnight in the
1859         * local time zone. Column name.
1860         * <P>Type: INTEGER (int)</P>
1861         */
1862        public static final String START_MINUTE = "startMinute";
1863
1864        /**
1865         * The end minute of the instance measured from midnight in the
1866         * local time zone. Column name.
1867         * <P>Type: INTEGER (int)</P>
1868         */
1869        public static final String END_MINUTE = "endMinute";
1870    }
1871
1872    protected interface CalendarCacheColumns {
1873        /**
1874         * The key for the setting. Keys are defined in {@link CalendarCache}.
1875         */
1876        public static final String KEY = "key";
1877
1878        /**
1879         * The value of the given setting.
1880         */
1881        public static final String VALUE = "value";
1882    }
1883
1884    /**
1885     * CalendarCache stores some settings for calendar including the current
1886     * time zone for the instances. These settings are stored using a key/value
1887     * scheme. A {@link #KEY} must be specified when updating these values.
1888     */
1889    public static final class CalendarCache implements CalendarCacheColumns {
1890        /**
1891         * The URI to use for retrieving the properties from the Calendar db.
1892         */
1893        public static final Uri URI =
1894                Uri.parse("content://" + AUTHORITY + "/properties");
1895
1896        /**
1897         * This utility class cannot be instantiated
1898         */
1899        private CalendarCache() {}
1900
1901        /**
1902         * They key for updating the use of auto/home time zones in Calendar.
1903         * Valid values are {@link #TIMEZONE_TYPE_AUTO} or
1904         * {@link #TIMEZONE_TYPE_HOME}.
1905         */
1906        public static final String KEY_TIMEZONE_TYPE = "timezoneType";
1907
1908        /**
1909         * The key for updating the time zone used by the provider when it
1910         * generates the instances table. This should only be written if the
1911         * type is set to {@link #TIMEZONE_TYPE_HOME}. A valid time zone id
1912         * should be written to this field.
1913         */
1914        public static final String KEY_TIMEZONE_INSTANCES = "timezoneInstances";
1915
1916        /**
1917         * The key for reading the last time zone set by the user. This should
1918         * only be read by apps and it will be automatically updated whenever
1919         * {@link #KEY_TIMEZONE_INSTANCES} is updated with
1920         * {@link #TIMEZONE_TYPE_HOME} set.
1921         */
1922        public static final String KEY_TIMEZONE_INSTANCES_PREVIOUS = "timezoneInstancesPrevious";
1923
1924        /**
1925         * The value to write to {@link #KEY_TIMEZONE_TYPE} if the provider
1926         * should stay in sync with the device's time zone.
1927         */
1928        public static final String TIMEZONE_TYPE_AUTO = "auto";
1929
1930        /**
1931         * The value to write to {@link #KEY_TIMEZONE_TYPE} if the provider
1932         * should use a fixed time zone set by the user.
1933         */
1934        public static final String TIMEZONE_TYPE_HOME = "home";
1935    }
1936
1937    /**
1938     * A few Calendar globals are needed in the CalendarProvider for expanding
1939     * the Instances table and these are all stored in the first (and only) row
1940     * of the CalendarMetaData table.
1941     *
1942     * @hide
1943     */
1944    protected interface CalendarMetaDataColumns {
1945        /**
1946         * The local timezone that was used for precomputing the fields
1947         * in the Instances table.
1948         */
1949        public static final String LOCAL_TIMEZONE = "localTimezone";
1950
1951        /**
1952         * The minimum time used in expanding the Instances table,
1953         * in UTC milliseconds.
1954         * <P>Type: INTEGER</P>
1955         */
1956        public static final String MIN_INSTANCE = "minInstance";
1957
1958        /**
1959         * The maximum time used in expanding the Instances table,
1960         * in UTC milliseconds.
1961         * <P>Type: INTEGER</P>
1962         */
1963        public static final String MAX_INSTANCE = "maxInstance";
1964
1965        /**
1966         * The minimum Julian day in the EventDays table.
1967         * <P>Type: INTEGER</P>
1968         */
1969        public static final String MIN_EVENTDAYS = "minEventDays";
1970
1971        /**
1972         * The maximum Julian day in the EventDays table.
1973         * <P>Type: INTEGER</P>
1974         */
1975        public static final String MAX_EVENTDAYS = "maxEventDays";
1976    }
1977
1978    /**
1979     * @hide
1980     */
1981    public static final class CalendarMetaData implements CalendarMetaDataColumns, BaseColumns {
1982
1983        /**
1984         * This utility class cannot be instantiated
1985         */
1986        private CalendarMetaData() {}
1987    }
1988
1989    protected interface EventDaysColumns {
1990        /**
1991         * The Julian starting day number. Column name.
1992         * <P>Type: INTEGER (int)</P>
1993         */
1994        public static final String STARTDAY = "startDay";
1995        /**
1996         * The Julian ending day number. Column name.
1997         * <P>Type: INTEGER (int)</P>
1998         */
1999        public static final String ENDDAY = "endDay";
2000
2001    }
2002
2003    /**
2004     * Fields and helpers for querying for a list of days that contain events.
2005     */
2006    public static final class EventDays implements EventDaysColumns {
2007        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY
2008                + "/instances/groupbyday");
2009        private static final String SELECTION = "selected=1";
2010
2011        /**
2012         * This utility class cannot be instantiated
2013         */
2014        private EventDays() {}
2015
2016        /**
2017         * Retrieves the days with events for the Julian days starting at
2018         * "startDay" for "numDays". It returns a cursor containing startday and
2019         * endday representing the max range of days for all events beginning on
2020         * each startday.This is a blocking function and should not be done on
2021         * the UI thread.
2022         *
2023         * @param cr the ContentResolver
2024         * @param startDay the first Julian day in the range
2025         * @param numDays the number of days to load (must be at least 1)
2026         * @param projection the columns to return in the cursor
2027         * @return a database cursor containing a list of start and end days for
2028         *         events
2029         */
2030        public static final Cursor query(ContentResolver cr, int startDay, int numDays,
2031                String[] projection) {
2032            if (numDays < 1) {
2033                return null;
2034            }
2035            int endDay = startDay + numDays - 1;
2036            Uri.Builder builder = CONTENT_URI.buildUpon();
2037            ContentUris.appendId(builder, startDay);
2038            ContentUris.appendId(builder, endDay);
2039            return cr.query(builder.build(), projection, SELECTION,
2040                    null /* selection args */, STARTDAY);
2041        }
2042    }
2043
2044    protected interface RemindersColumns {
2045        /**
2046         * The event the reminder belongs to. Column name.
2047         * <P>Type: INTEGER (foreign key to the Events table)</P>
2048         */
2049        public static final String EVENT_ID = "event_id";
2050
2051        /**
2052         * The minutes prior to the event that the alarm should ring.  -1
2053         * specifies that we should use the default value for the system.
2054         * Column name.
2055         * <P>Type: INTEGER</P>
2056         */
2057        public static final String MINUTES = "minutes";
2058
2059        /**
2060         * Passing this as a minutes value will use the default reminder
2061         * minutes.
2062         */
2063        public static final int MINUTES_DEFAULT = -1;
2064
2065        /**
2066         * The alarm method, as set on the server. {@link #METHOD_DEFAULT},
2067         * {@link #METHOD_ALERT}, {@link #METHOD_EMAIL}, {@link #METHOD_SMS} and
2068         * {@link #METHOD_ALARM} are possible values; the device will only
2069         * process {@link #METHOD_DEFAULT} and {@link #METHOD_ALERT} reminders
2070         * (the other types are simply stored so we can send the same reminder
2071         * info back to the server when we make changes).
2072         */
2073        public static final String METHOD = "method";
2074
2075        public static final int METHOD_DEFAULT = 0;
2076        public static final int METHOD_ALERT = 1;
2077        public static final int METHOD_EMAIL = 2;
2078        public static final int METHOD_SMS = 3;
2079        public static final int METHOD_ALARM = 4;
2080    }
2081
2082    /**
2083     * Fields and helpers for accessing reminders for an event. Each row of this
2084     * table represents a single reminder for an event. Calling
2085     * {@link #query(ContentResolver, long, String[])} will return a list of reminders for
2086     * the event with the given eventId. Both apps and sync adapters may write
2087     * to this table. There are three writable fields and all of them must be
2088     * included when inserting a new reminder. They are:
2089     * <ul>
2090     * <li>{@link #EVENT_ID}</li>
2091     * <li>{@link #MINUTES}</li>
2092     * <li>{@link #METHOD}</li>
2093     * </ul>
2094     */
2095    public static final class Reminders implements BaseColumns, RemindersColumns, EventsColumns {
2096        private static final String REMINDERS_WHERE = CalendarContract.Reminders.EVENT_ID + "=?";
2097        @SuppressWarnings("hiding")
2098        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/reminders");
2099
2100        /**
2101         * This utility class cannot be instantiated
2102         */
2103        private Reminders() {}
2104
2105        /**
2106         * Queries all reminders associated with the given event. This is a
2107         * blocking call and should not be done on the UI thread.
2108         *
2109         * @param cr The content resolver to use for the query
2110         * @param eventId The id of the event to retrieve reminders for
2111         * @param projection the columns to return in the cursor
2112         * @return A Cursor containing all reminders for the event
2113         */
2114        public static final Cursor query(ContentResolver cr, long eventId, String[] projection) {
2115            String[] remArgs = {Long.toString(eventId)};
2116            return cr.query(CONTENT_URI, projection, REMINDERS_WHERE, remArgs /*selection args*/,
2117                    null /* sort order */);
2118        }
2119    }
2120
2121    protected interface CalendarAlertsColumns {
2122        /**
2123         * The event that the alert belongs to. Column name.
2124         * <P>Type: INTEGER (foreign key to the Events table)</P>
2125         */
2126        public static final String EVENT_ID = "event_id";
2127
2128        /**
2129         * The start time of the event, in UTC. Column name.
2130         * <P>Type: INTEGER (long; millis since epoch)</P>
2131         */
2132        public static final String BEGIN = "begin";
2133
2134        /**
2135         * The end time of the event, in UTC. Column name.
2136         * <P>Type: INTEGER (long; millis since epoch)</P>
2137         */
2138        public static final String END = "end";
2139
2140        /**
2141         * The alarm time of the event, in UTC. Column name.
2142         * <P>Type: INTEGER (long; millis since epoch)</P>
2143         */
2144        public static final String ALARM_TIME = "alarmTime";
2145
2146        /**
2147         * The creation time of this database entry, in UTC.
2148         * Useful for debugging missed reminders. Column name.
2149         * <P>Type: INTEGER (long; millis since epoch)</P>
2150         */
2151        public static final String CREATION_TIME = "creationTime";
2152
2153        /**
2154         * The time that the alarm broadcast was received by the Calendar app,
2155         * in UTC. Useful for debugging missed reminders. Column name.
2156         * <P>Type: INTEGER (long; millis since epoch)</P>
2157         */
2158        public static final String RECEIVED_TIME = "receivedTime";
2159
2160        /**
2161         * The time that the notification was created by the Calendar app,
2162         * in UTC. Useful for debugging missed reminders. Column name.
2163         * <P>Type: INTEGER (long; millis since epoch)</P>
2164         */
2165        public static final String NOTIFY_TIME = "notifyTime";
2166
2167        /**
2168         * The state of this alert. It starts out as {@link #STATE_SCHEDULED}, then
2169         * when the alarm goes off, it changes to {@link #STATE_FIRED}, and then when
2170         * the user dismisses the alarm it changes to {@link #STATE_DISMISSED}. Column
2171         * name.
2172         * <P>Type: INTEGER</P>
2173         */
2174        public static final String STATE = "state";
2175
2176        /**
2177         * An alert begins in this state when it is first created.
2178         */
2179        public static final int STATE_SCHEDULED = 0;
2180        /**
2181         * After a notification for an alert has been created it should be
2182         * updated to fired.
2183         */
2184        public static final int STATE_FIRED = 1;
2185        /**
2186         * Once the user has dismissed the notification the alert's state should
2187         * be set to dismissed so it is not fired again.
2188         */
2189        public static final int STATE_DISMISSED = 2;
2190
2191        /**
2192         * The number of minutes that this alarm precedes the start time. Column
2193         * name.
2194         * <P>Type: INTEGER</P>
2195         */
2196        public static final String MINUTES = "minutes";
2197
2198        /**
2199         * The default sort order for this alerts queries
2200         */
2201        public static final String DEFAULT_SORT_ORDER = "begin ASC,title ASC";
2202    }
2203
2204    /**
2205     * Fields and helpers for accessing calendar alerts information. These
2206     * fields are for tracking which alerts have been fired. Scheduled alarms
2207     * will generate an intent using {@link #ACTION_EVENT_REMINDER}. Apps that
2208     * receive this action may update the {@link #STATE} for the reminder when
2209     * they have finished handling it. Apps that have their notifications
2210     * disabled should not modify the table to ensure that they do not conflict
2211     * with another app that is generating a notification. In general, apps
2212     * should not need to write to this table directly except to update the
2213     * state of a reminder.
2214     */
2215    public static final class CalendarAlerts implements BaseColumns,
2216            CalendarAlertsColumns, EventsColumns, CalendarColumns {
2217
2218        /**
2219         * @hide
2220         */
2221        public static final String TABLE_NAME = "CalendarAlerts";
2222        /**
2223         * The Uri for querying calendar alert information
2224         */
2225        @SuppressWarnings("hiding")
2226        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
2227                "/calendar_alerts");
2228
2229        /**
2230         * This utility class cannot be instantiated
2231         */
2232        private CalendarAlerts() {}
2233
2234        private static final String WHERE_ALARM_EXISTS = EVENT_ID + "=?"
2235                + " AND " + BEGIN + "=?"
2236                + " AND " + ALARM_TIME + "=?";
2237
2238        private static final String WHERE_FINDNEXTALARMTIME = ALARM_TIME + ">=?";
2239        private static final String SORT_ORDER_ALARMTIME_ASC = ALARM_TIME + " ASC";
2240
2241        private static final String WHERE_RESCHEDULE_MISSED_ALARMS = STATE + "=" + STATE_SCHEDULED
2242                + " AND " + ALARM_TIME + "<?"
2243                + " AND " + ALARM_TIME + ">?"
2244                + " AND " + END + ">=?";
2245
2246        /**
2247         * This URI is for grouping the query results by event_id and begin
2248         * time.  This will return one result per instance of an event.  So
2249         * events with multiple alarms will appear just once, but multiple
2250         * instances of a repeating event will show up multiple times.
2251         */
2252        public static final Uri CONTENT_URI_BY_INSTANCE =
2253            Uri.parse("content://" + AUTHORITY + "/calendar_alerts/by_instance");
2254
2255        private static final boolean DEBUG = false;
2256
2257        /**
2258         * Helper for inserting an alarm time associated with an event TODO move
2259         * to Provider
2260         *
2261         * @hide
2262         */
2263        public static final Uri insert(ContentResolver cr, long eventId,
2264                long begin, long end, long alarmTime, int minutes) {
2265            ContentValues values = new ContentValues();
2266            values.put(CalendarAlerts.EVENT_ID, eventId);
2267            values.put(CalendarAlerts.BEGIN, begin);
2268            values.put(CalendarAlerts.END, end);
2269            values.put(CalendarAlerts.ALARM_TIME, alarmTime);
2270            long currentTime = System.currentTimeMillis();
2271            values.put(CalendarAlerts.CREATION_TIME, currentTime);
2272            values.put(CalendarAlerts.RECEIVED_TIME, 0);
2273            values.put(CalendarAlerts.NOTIFY_TIME, 0);
2274            values.put(CalendarAlerts.STATE, STATE_SCHEDULED);
2275            values.put(CalendarAlerts.MINUTES, minutes);
2276            return cr.insert(CONTENT_URI, values);
2277        }
2278
2279        /**
2280         * Finds the next alarm after (or equal to) the given time and returns
2281         * the time of that alarm or -1 if no such alarm exists. This is a
2282         * blocking call and should not be done on the UI thread. TODO move to
2283         * provider
2284         *
2285         * @param cr the ContentResolver
2286         * @param millis the time in UTC milliseconds
2287         * @return the next alarm time greater than or equal to "millis", or -1
2288         *         if no such alarm exists.
2289         * @hide
2290         */
2291        public static final long findNextAlarmTime(ContentResolver cr, long millis) {
2292            String selection = ALARM_TIME + ">=" + millis;
2293            // TODO: construct an explicit SQL query so that we can add
2294            // "LIMIT 1" to the end and get just one result.
2295            String[] projection = new String[] { ALARM_TIME };
2296            Cursor cursor = cr.query(CONTENT_URI, projection, WHERE_FINDNEXTALARMTIME,
2297                    (new String[] {
2298                        Long.toString(millis)
2299                    }), SORT_ORDER_ALARMTIME_ASC);
2300            long alarmTime = -1;
2301            try {
2302                if (cursor != null && cursor.moveToFirst()) {
2303                    alarmTime = cursor.getLong(0);
2304                }
2305            } finally {
2306                if (cursor != null) {
2307                    cursor.close();
2308                }
2309            }
2310            return alarmTime;
2311        }
2312
2313        /**
2314         * Searches the CalendarAlerts table for alarms that should have fired
2315         * but have not and then reschedules them. This method can be called at
2316         * boot time to restore alarms that may have been lost due to a phone
2317         * reboot. TODO move to provider
2318         *
2319         * @param cr the ContentResolver
2320         * @param context the Context
2321         * @param manager the AlarmManager
2322         * @hide
2323         */
2324        public static final void rescheduleMissedAlarms(ContentResolver cr,
2325                Context context, AlarmManager manager) {
2326            // Get all the alerts that have been scheduled but have not fired
2327            // and should have fired by now and are not too old.
2328            long now = System.currentTimeMillis();
2329            long ancient = now - DateUtils.DAY_IN_MILLIS;
2330            String[] projection = new String[] {
2331                    ALARM_TIME,
2332            };
2333
2334            // TODO: construct an explicit SQL query so that we can add
2335            // "GROUPBY" instead of doing a sort and de-dup
2336            Cursor cursor = cr.query(CalendarAlerts.CONTENT_URI, projection,
2337                    WHERE_RESCHEDULE_MISSED_ALARMS, (new String[] {
2338                            Long.toString(now), Long.toString(ancient), Long.toString(now)
2339                    }), SORT_ORDER_ALARMTIME_ASC);
2340            if (cursor == null) {
2341                return;
2342            }
2343
2344            if (DEBUG) {
2345                Log.d(TAG, "missed alarms found: " + cursor.getCount());
2346            }
2347
2348            try {
2349                long alarmTime = -1;
2350
2351                while (cursor.moveToNext()) {
2352                    long newAlarmTime = cursor.getLong(0);
2353                    if (alarmTime != newAlarmTime) {
2354                        if (DEBUG) {
2355                            Log.w(TAG, "rescheduling missed alarm. alarmTime: " + newAlarmTime);
2356                        }
2357                        scheduleAlarm(context, manager, newAlarmTime);
2358                        alarmTime = newAlarmTime;
2359                    }
2360                }
2361            } finally {
2362                cursor.close();
2363            }
2364        }
2365
2366        /**
2367         * Schedules an alarm intent with the system AlarmManager that will
2368         * notify listeners when a reminder should be fired. The provider will
2369         * keep scheduled reminders up to date but apps may use this to
2370         * implement snooze functionality without modifying the reminders table.
2371         * Scheduled alarms will generate an intent using
2372         * {@link #ACTION_EVENT_REMINDER}. TODO Move to provider
2373         *
2374         * @param context A context for referencing system resources
2375         * @param manager The AlarmManager to use or null
2376         * @param alarmTime The time to fire the intent in UTC millis since
2377         *            epoch
2378         * @hide
2379         */
2380        public static void scheduleAlarm(Context context, AlarmManager manager, long alarmTime) {
2381            if (DEBUG) {
2382                Time time = new Time();
2383                time.set(alarmTime);
2384                String schedTime = time.format(" %a, %b %d, %Y %I:%M%P");
2385                Log.d(TAG, "Schedule alarm at " + alarmTime + " " + schedTime);
2386            }
2387
2388            if (manager == null) {
2389                manager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
2390            }
2391
2392            Intent intent = new Intent(ACTION_EVENT_REMINDER);
2393            intent.setData(ContentUris.withAppendedId(CalendarContract.CONTENT_URI, alarmTime));
2394            intent.putExtra(ALARM_TIME, alarmTime);
2395            intent.setFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND);
2396            PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0);
2397            manager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, alarmTime, pi);
2398        }
2399
2400        /**
2401         * Searches for an entry in the CalendarAlerts table that matches the
2402         * given event id, begin time and alarm time. If one is found then this
2403         * alarm already exists and this method returns true. TODO Move to
2404         * provider
2405         *
2406         * @param cr the ContentResolver
2407         * @param eventId the event id to match
2408         * @param begin the start time of the event in UTC millis
2409         * @param alarmTime the alarm time of the event in UTC millis
2410         * @return true if there is already an alarm for the given event with
2411         *         the same start time and alarm time.
2412         * @hide
2413         */
2414        public static final boolean alarmExists(ContentResolver cr, long eventId,
2415                long begin, long alarmTime) {
2416            // TODO: construct an explicit SQL query so that we can add
2417            // "LIMIT 1" to the end and get just one result.
2418            String[] projection = new String[] { ALARM_TIME };
2419            Cursor cursor = cr.query(CONTENT_URI, projection, WHERE_ALARM_EXISTS,
2420                    (new String[] {
2421                            Long.toString(eventId), Long.toString(begin), Long.toString(alarmTime)
2422                    }), null);
2423            boolean found = false;
2424            try {
2425                if (cursor != null && cursor.getCount() > 0) {
2426                    found = true;
2427                }
2428            } finally {
2429                if (cursor != null) {
2430                    cursor.close();
2431                }
2432            }
2433            return found;
2434        }
2435    }
2436
2437    protected interface ColorsColumns extends SyncStateContract.Columns {
2438
2439        /**
2440         * The type of color, which describes how it should be used. Valid types
2441         * are {@link #TYPE_CALENDAR} and {@link #TYPE_EVENT}. Column name.
2442         * <P>
2443         * Type: INTEGER (NOT NULL)
2444         * </P>
2445         */
2446        public static final String COLOR_TYPE = "color_type";
2447
2448        /**
2449         * This indicateds a color that can be used for calendars.
2450         */
2451        public static final int TYPE_CALENDAR = 0;
2452        /**
2453         * This indicates a color that can be used for events.
2454         */
2455        public static final int TYPE_EVENT = 1;
2456
2457        /**
2458         * The key used to reference this color. This can be any non-empty
2459         * string, but must be unique for a given {@link #ACCOUNT_TYPE} and
2460         * {@link #ACCOUNT_NAME}. Column name.
2461         * <P>
2462         * Type: TEXT
2463         * </P>
2464         */
2465        public static final String COLOR_KEY = "color_index";
2466
2467        /**
2468         * The color as an 8-bit ARGB integer value. Colors should specify alpha
2469         * as fully opaque (eg 0xFF993322) as the alpha may be ignored or
2470         * modified for display. It is reccomended that colors be usable with
2471         * light (near white) text. Apps should not depend on that assumption,
2472         * however. Column name.
2473         * <P>
2474         * Type: INTEGER (NOT NULL)
2475         * </P>
2476         */
2477        public static final String COLOR = "color";
2478
2479    }
2480
2481    /**
2482     * Fields for accessing colors available for a given account. Colors are
2483     * referenced by {@link #COLOR_KEY} which must be unique for a given
2484     * account name/type. These values can only be updated by the sync
2485     * adapter. Only {@link #COLOR} may be updated after the initial insert. In
2486     * addition, a row can only be deleted once all references to that color
2487     * have been removed from the {@link Calendars} or {@link Events} tables.
2488     */
2489    public static final class Colors implements ColorsColumns {
2490        /**
2491         * @hide
2492         */
2493        public static final String TABLE_NAME = "Colors";
2494        /**
2495         * The Uri for querying color information
2496         */
2497        @SuppressWarnings("hiding")
2498        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/colors");
2499
2500        /**
2501         * This utility class cannot be instantiated
2502         */
2503        private Colors() {
2504        }
2505    }
2506
2507    protected interface ExtendedPropertiesColumns {
2508        /**
2509         * The event the extended property belongs to. Column name.
2510         * <P>Type: INTEGER (foreign key to the Events table)</P>
2511         */
2512        public static final String EVENT_ID = "event_id";
2513
2514        /**
2515         * The name of the extended property.  This is a uri of the form
2516         * {scheme}#{local-name} convention. Column name.
2517         * <P>Type: TEXT</P>
2518         */
2519        public static final String NAME = "name";
2520
2521        /**
2522         * The value of the extended property. Column name.
2523         * <P>Type: TEXT</P>
2524         */
2525        public static final String VALUE = "value";
2526    }
2527
2528    /**
2529     * Fields for accessing the Extended Properties. This is a generic set of
2530     * name/value pairs for use by sync adapters to add extra
2531     * information to events. There are three writable columns and all three
2532     * must be present when inserting a new value. They are:
2533     * <ul>
2534     * <li>{@link #EVENT_ID}</li>
2535     * <li>{@link #NAME}</li>
2536     * <li>{@link #VALUE}</li>
2537     * </ul>
2538     */
2539   public static final class ExtendedProperties implements BaseColumns,
2540            ExtendedPropertiesColumns, EventsColumns {
2541        public static final Uri CONTENT_URI =
2542                Uri.parse("content://" + AUTHORITY + "/extendedproperties");
2543
2544        /**
2545         * This utility class cannot be instantiated
2546         */
2547        private ExtendedProperties() {}
2548
2549        // TODO: fill out this class when we actually start utilizing extendedproperties
2550        // in the calendar application.
2551   }
2552
2553    /**
2554     * A table provided for sync adapters to use for storing private sync state data.
2555     *
2556     * @see SyncStateContract
2557     */
2558    public static final class SyncState implements SyncStateContract.Columns {
2559        /**
2560         * This utility class cannot be instantiated
2561         */
2562        private SyncState() {}
2563
2564        private static final String CONTENT_DIRECTORY =
2565                SyncStateContract.Constants.CONTENT_DIRECTORY;
2566
2567        /**
2568         * The content:// style URI for this table
2569         */
2570        public static final Uri CONTENT_URI =
2571                Uri.withAppendedPath(CalendarContract.CONTENT_URI, CONTENT_DIRECTORY);
2572    }
2573
2574    /**
2575     * Columns from the EventsRawTimes table
2576     *
2577     * @hide
2578     */
2579    protected interface EventsRawTimesColumns {
2580        /**
2581         * The corresponding event id. Column name.
2582         * <P>Type: INTEGER (long)</P>
2583         */
2584        public static final String EVENT_ID = "event_id";
2585
2586        /**
2587         * The RFC2445 compliant time the event starts. Column name.
2588         * <P>Type: TEXT</P>
2589         */
2590        public static final String DTSTART_2445 = "dtstart2445";
2591
2592        /**
2593         * The RFC2445 compliant time the event ends. Column name.
2594         * <P>Type: TEXT</P>
2595         */
2596        public static final String DTEND_2445 = "dtend2445";
2597
2598        /**
2599         * The RFC2445 compliant original instance time of the recurring event
2600         * for which this event is an exception. Column name.
2601         * <P>Type: TEXT</P>
2602         */
2603        public static final String ORIGINAL_INSTANCE_TIME_2445 = "originalInstanceTime2445";
2604
2605        /**
2606         * The RFC2445 compliant last date this event repeats on, or NULL if it
2607         * never ends. Column name.
2608         * <P>Type: TEXT</P>
2609         */
2610        public static final String LAST_DATE_2445 = "lastDate2445";
2611    }
2612
2613    /**
2614     * @hide
2615     */
2616    public static final class EventsRawTimes implements BaseColumns, EventsRawTimesColumns {
2617
2618        /**
2619         * This utility class cannot be instantiated
2620         */
2621        private EventsRawTimes() {}
2622    }
2623}
2624