CalendarContract.java revision 8ac6a63a94494b356b30f076d7ad52fcc6024935
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     * {@code
112     * <intent-filter>
113     *    <action android:name="android.provider.calendar.action.HANDLE_CUSTOM_EVENT" />
114     *    <category android:name="android.intent.category.DEFAULT" />
115     *    <data android:mimeType="vnd.android.cursor.item/event" />
116     * </intent-filter>
117     * }
118     * </pre>
119     * <p>
120     * Input: {@link Intent#getData} has the event URI. The extra
121     * {@link #EXTRA_EVENT_BEGIN_TIME} has the start time of the instance. The
122     * extra {@link #EXTRA_CUSTOM_APP_URI} will have the
123     * {@link EventsColumns#CUSTOM_APP_URI}.
124     * <p>
125     * Output: {@link Activity#RESULT_OK} if this was handled; otherwise
126     * {@link Activity#RESULT_CANCELED}
127     */
128    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
129    public static final String ACTION_HANDLE_CUSTOM_EVENT =
130        "android.provider.calendar.action.HANDLE_CUSTOM_EVENT";
131
132    /**
133     * Intent Extras key: {@link EventsColumns#CUSTOM_APP_URI} for the event in
134     * the {@link #ACTION_HANDLE_CUSTOM_EVENT} intent
135     */
136    public static final String EXTRA_CUSTOM_APP_URI = "customAppUri";
137
138    /**
139     * Intent Extras key: The start time of an event or an instance of a
140     * recurring event. (milliseconds since epoch)
141     */
142    public static final String EXTRA_EVENT_BEGIN_TIME = "beginTime";
143
144    /**
145     * Intent Extras key: The end time of an event or an instance of a recurring
146     * event. (milliseconds since epoch)
147     */
148    public static final String EXTRA_EVENT_END_TIME = "endTime";
149
150    /**
151     * Intent Extras key: When creating an event, set this to true to create an
152     * all-day event by default
153     */
154    public static final String EXTRA_EVENT_ALL_DAY = "allDay";
155
156    /**
157     * This authority is used for writing to or querying from the calendar
158     * provider. Note: This is set at first run and cannot be changed without
159     * breaking apps that access the provider.
160     */
161    public static final String AUTHORITY = "com.android.calendar";
162
163    /**
164     * The content:// style URL for the top-level calendar authority
165     */
166    public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY);
167
168    /**
169     * An optional insert, update or delete URI parameter that allows the caller
170     * to specify that it is a sync adapter. The default value is false. If set
171     * to true, the modified row is not marked as "dirty" (needs to be synced)
172     * and when the provider calls
173     * {@link ContentResolver#notifyChange(android.net.Uri, android.database.ContentObserver, boolean)}
174     * , the third parameter "syncToNetwork" is set to false. Furthermore, if
175     * set to true, the caller must also include
176     * {@link Calendars#ACCOUNT_NAME} and {@link Calendars#ACCOUNT_TYPE} as
177     * query parameters.
178     *
179     * @see Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)
180     */
181    public static final String CALLER_IS_SYNCADAPTER = "caller_is_syncadapter";
182
183    /**
184     * A special account type for calendars not associated with any account.
185     * Normally calendars that do not match an account on the device will be
186     * removed. Setting the account_type on a calendar to this will prevent it
187     * from being wiped if it does not match an existing account.
188     *
189     * @see SyncColumns#ACCOUNT_TYPE
190     */
191    public static final String ACCOUNT_TYPE_LOCAL = "LOCAL";
192
193    /**
194     * This utility class cannot be instantiated
195     */
196    private CalendarContract() {}
197
198    /**
199     * Generic columns for use by sync adapters. The specific functions of these
200     * columns are private to the sync adapter. Other clients of the API should
201     * not attempt to either read or write this column. These columns are
202     * editable as part of the Calendars Uri, but can only be read if accessed
203     * through any other Uri.
204     */
205    protected interface CalendarSyncColumns {
206
207
208        /**
209         * Generic column for use by sync adapters. Column name.
210         * <P>Type: TEXT</P>
211         */
212        public static final String CAL_SYNC1 = "cal_sync1";
213
214        /**
215         * Generic column for use by sync adapters. Column name.
216         * <P>Type: TEXT</P>
217         */
218        public static final String CAL_SYNC2 = "cal_sync2";
219
220        /**
221         * Generic column for use by sync adapters. Column name.
222         * <P>Type: TEXT</P>
223         */
224        public static final String CAL_SYNC3 = "cal_sync3";
225
226        /**
227         * Generic column for use by sync adapters. Column name.
228         * <P>Type: TEXT</P>
229         */
230        public static final String CAL_SYNC4 = "cal_sync4";
231
232        /**
233         * Generic column for use by sync adapters. Column name.
234         * <P>Type: TEXT</P>
235         */
236        public static final String CAL_SYNC5 = "cal_sync5";
237
238        /**
239         * Generic column for use by sync adapters. Column name.
240         * <P>Type: TEXT</P>
241         */
242        public static final String CAL_SYNC6 = "cal_sync6";
243
244        /**
245         * Generic column for use by sync adapters. Column name.
246         * <P>Type: TEXT</P>
247         */
248        public static final String CAL_SYNC7 = "cal_sync7";
249
250        /**
251         * Generic column for use by sync adapters. Column name.
252         * <P>Type: TEXT</P>
253         */
254        public static final String CAL_SYNC8 = "cal_sync8";
255
256        /**
257         * Generic column for use by sync adapters. Column name.
258         * <P>Type: TEXT</P>
259         */
260        public static final String CAL_SYNC9 = "cal_sync9";
261
262        /**
263         * Generic column for use by sync adapters. Column name.
264         * <P>Type: TEXT</P>
265         */
266        public static final String CAL_SYNC10 = "cal_sync10";
267    }
268
269    /**
270     * Columns for Sync information used by Calendars and Events tables. These
271     * have specific uses which are expected to be consistent by the app and
272     * sync adapter.
273     *
274     */
275    protected interface SyncColumns extends CalendarSyncColumns {
276        /**
277         * The account that was used to sync the entry to the device. If the
278         * account_type is not {@link #ACCOUNT_TYPE_LOCAL} then the name and
279         * type must match an account on the device or the calendar will be
280         * deleted.
281         * <P>Type: TEXT</P>
282         */
283        public static final String ACCOUNT_NAME = "account_name";
284
285        /**
286         * The type of the account that was used to sync the entry to the
287         * device. A type of {@link #ACCOUNT_TYPE_LOCAL} will keep this event
288         * form being deleted if there are no matching accounts on the device.
289         * <P>Type: TEXT</P>
290         */
291        public static final String ACCOUNT_TYPE = "account_type";
292
293        /**
294         * The unique ID for a row assigned by the sync source. NULL if the row
295         * has never been synced. This is used as a reference id for exceptions
296         * along with {@link BaseColumns#_ID}.
297         * <P>Type: TEXT</P>
298         */
299        public static final String _SYNC_ID = "_sync_id";
300
301        /**
302         * Used to indicate that local, unsynced, changes are present.
303         * <P>Type: INTEGER (long)</P>
304         */
305
306        public static final String DIRTY = "dirty";
307
308        /**
309         * Used in conjunction with {@link #DIRTY} to indicate what packages wrote local changes.
310         * <P>Type: TEXT</P>
311         */
312        public static final String MUTATORS = "mutators";
313
314        /**
315         * Whether the row has been deleted but not synced to the server. A
316         * deleted row should be ignored.
317         * <P>
318         * Type: INTEGER (boolean)
319         * </P>
320         */
321        public static final String DELETED = "deleted";
322
323        /**
324         * If set to 1 this causes events on this calendar to be duplicated with
325         * {@link Events#LAST_SYNCED} set to 1 whenever the event
326         * transitions from non-dirty to dirty. The duplicated event will not be
327         * expanded in the instances table and will only show up in sync adapter
328         * queries of the events table. It will also be deleted when the
329         * originating event has its dirty flag cleared by the sync adapter.
330         * <P>Type: INTEGER (boolean)</P>
331         */
332        public static final String CAN_PARTIALLY_UPDATE = "canPartiallyUpdate";
333    }
334
335    /**
336     * Columns specific to the Calendars Uri that other Uris can query.
337     */
338    protected interface CalendarColumns {
339        /**
340         * The color of the calendar. This should only be updated by the sync
341         * adapter, not other apps, as changing a calendar's color can adversely
342         * affect its display.
343         * <P>Type: INTEGER (color value)</P>
344         */
345        public static final String CALENDAR_COLOR = "calendar_color";
346
347        /**
348         * A key for looking up a color from the {@link Colors} table. NULL or
349         * an empty string are reserved for indicating that the calendar does
350         * not use a key for looking up the color. The provider will update
351         * {@link #CALENDAR_COLOR} automatically when a valid key is written to
352         * this column. The key must reference an existing row of the
353         * {@link Colors} table. @see Colors
354         * <P>
355         * Type: TEXT
356         * </P>
357         */
358        public static final String CALENDAR_COLOR_KEY = "calendar_color_index";
359
360        /**
361         * The display name of the calendar. Column name.
362         * <P>
363         * Type: TEXT
364         * </P>
365         */
366        public static final String CALENDAR_DISPLAY_NAME = "calendar_displayName";
367
368        /**
369         * The level of access that the user has for the calendar
370         * <P>Type: INTEGER (one of the values below)</P>
371         */
372        public static final String CALENDAR_ACCESS_LEVEL = "calendar_access_level";
373
374        /** Cannot access the calendar */
375        public static final int CAL_ACCESS_NONE = 0;
376        /** Can only see free/busy information about the calendar */
377        public static final int CAL_ACCESS_FREEBUSY = 100;
378        /** Can read all event details */
379        public static final int CAL_ACCESS_READ = 200;
380        /** Can reply yes/no/maybe to an event */
381        public static final int CAL_ACCESS_RESPOND = 300;
382        /** not used */
383        public static final int CAL_ACCESS_OVERRIDE = 400;
384        /** Full access to modify the calendar, but not the access control
385         * settings
386         */
387        public static final int CAL_ACCESS_CONTRIBUTOR = 500;
388        /** Full access to modify the calendar, but not the access control
389         * settings
390         */
391        public static final int CAL_ACCESS_EDITOR = 600;
392        /** Full access to the calendar */
393        public static final int CAL_ACCESS_OWNER = 700;
394        /** Domain admin */
395        public static final int CAL_ACCESS_ROOT = 800;
396
397        /**
398         * Is the calendar selected to be displayed?
399         * 0 - do not show events associated with this calendar.
400         * 1 - show events associated with this calendar
401         * <P>Type: INTEGER (boolean)</P>
402         */
403        public static final String VISIBLE = "visible";
404
405        /**
406         * The time zone the calendar is associated with.
407         * <P>Type: TEXT</P>
408         */
409        public static final String CALENDAR_TIME_ZONE = "calendar_timezone";
410
411        /**
412         * Is this calendar synced and are its events stored on the device?
413         * 0 - Do not sync this calendar or store events for this calendar.
414         * 1 - Sync down events for this calendar.
415         * <p>Type: INTEGER (boolean)</p>
416         */
417        public static final String SYNC_EVENTS = "sync_events";
418
419        /**
420         * The owner account for this calendar, based on the calendar feed.
421         * This will be different from the _SYNC_ACCOUNT for delegated calendars.
422         * Column name.
423         * <P>Type: String</P>
424         */
425        public static final String OWNER_ACCOUNT = "ownerAccount";
426
427        /**
428         * Can the organizer respond to the event?  If no, the status of the
429         * organizer should not be shown by the UI.  Defaults to 1. Column name.
430         * <P>Type: INTEGER (boolean)</P>
431         */
432        public static final String CAN_ORGANIZER_RESPOND = "canOrganizerRespond";
433
434        /**
435         * Can the organizer modify the time zone of the event? Column name.
436         * <P>Type: INTEGER (boolean)</P>
437        */
438        public static final String CAN_MODIFY_TIME_ZONE = "canModifyTimeZone";
439
440        /**
441         * The maximum number of reminders allowed for an event. Column name.
442         * <P>Type: INTEGER</P>
443         */
444        public static final String MAX_REMINDERS = "maxReminders";
445
446        /**
447         * A comma separated list of reminder methods supported for this
448         * calendar in the format "#,#,#". Valid types are
449         * {@link Reminders#METHOD_DEFAULT}, {@link Reminders#METHOD_ALERT},
450         * {@link Reminders#METHOD_EMAIL}, {@link Reminders#METHOD_SMS},
451         * {@link Reminders#METHOD_ALARM}. Column name.
452         * <P>Type: TEXT</P>
453         */
454        public static final String ALLOWED_REMINDERS = "allowedReminders";
455
456        /**
457         * A comma separated list of availability types supported for this
458         * calendar in the format "#,#,#". Valid types are
459         * {@link Events#AVAILABILITY_BUSY}, {@link Events#AVAILABILITY_FREE},
460         * {@link Events#AVAILABILITY_TENTATIVE}. Setting this field to only
461         * {@link Events#AVAILABILITY_BUSY} should be used to indicate that
462         * changing the availability is not supported.
463         *
464         */
465        public static final String ALLOWED_AVAILABILITY = "allowedAvailability";
466
467        /**
468         * A comma separated list of attendee types supported for this calendar
469         * in the format "#,#,#". Valid types are {@link Attendees#TYPE_NONE},
470         * {@link Attendees#TYPE_OPTIONAL}, {@link Attendees#TYPE_REQUIRED},
471         * {@link Attendees#TYPE_RESOURCE}. Setting this field to only
472         * {@link Attendees#TYPE_NONE} should be used to indicate that changing
473         * the attendee type is not supported.
474         *
475         */
476        public static final String ALLOWED_ATTENDEE_TYPES = "allowedAttendeeTypes";
477
478        /**
479         * Is this the primary calendar for this account. If this column is not explicitly set, the
480         * provider will return 1 if {@link Calendars#ACCOUNT_NAME} is equal to
481         * {@link Calendars#OWNER_ACCOUNT}.
482         */
483        public static final String IS_PRIMARY = "isPrimary";
484    }
485
486    /**
487     * Class that represents a Calendar Entity. There is one entry per calendar.
488     * This is a helper class to make batch operations easier.
489     */
490    public static final class CalendarEntity implements BaseColumns, SyncColumns, CalendarColumns {
491
492        /**
493         * The default Uri used when creating a new calendar EntityIterator.
494         */
495        @SuppressWarnings("hiding")
496        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
497                "/calendar_entities");
498
499        /**
500         * This utility class cannot be instantiated
501         */
502        private CalendarEntity() {}
503
504        /**
505         * Creates an entity iterator for the given cursor. It assumes the
506         * cursor contains a calendars query.
507         *
508         * @param cursor query on {@link #CONTENT_URI}
509         * @return an EntityIterator of calendars
510         */
511        public static EntityIterator newEntityIterator(Cursor cursor) {
512            return new EntityIteratorImpl(cursor);
513        }
514
515        private static class EntityIteratorImpl extends CursorEntityIterator {
516
517            public EntityIteratorImpl(Cursor cursor) {
518                super(cursor);
519            }
520
521            @Override
522            public Entity getEntityAndIncrementCursor(Cursor cursor) throws RemoteException {
523                // we expect the cursor is already at the row we need to read from
524                final long calendarId = cursor.getLong(cursor.getColumnIndexOrThrow(_ID));
525
526                // Create the content value
527                ContentValues cv = new ContentValues();
528                cv.put(_ID, calendarId);
529
530                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ACCOUNT_NAME);
531                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ACCOUNT_TYPE);
532
533                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, _SYNC_ID);
534                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DIRTY);
535                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, MUTATORS);
536
537                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC1);
538                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC2);
539                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC3);
540                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC4);
541                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC5);
542                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC6);
543                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC7);
544                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC8);
545                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC9);
546                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC10);
547
548                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, Calendars.NAME);
549                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
550                        Calendars.CALENDAR_DISPLAY_NAME);
551                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
552                        Calendars.CALENDAR_COLOR);
553                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, CALENDAR_ACCESS_LEVEL);
554                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, VISIBLE);
555                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, SYNC_EVENTS);
556                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
557                        Calendars.CALENDAR_LOCATION);
558                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CALENDAR_TIME_ZONE);
559                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
560                        Calendars.OWNER_ACCOUNT);
561                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
562                        Calendars.CAN_ORGANIZER_RESPOND);
563                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
564                        Calendars.CAN_MODIFY_TIME_ZONE);
565                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
566                        Calendars.MAX_REMINDERS);
567                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
568                        Calendars.CAN_PARTIALLY_UPDATE);
569                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
570                        Calendars.ALLOWED_REMINDERS);
571
572                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, DELETED);
573
574                // Create the Entity from the ContentValue
575                Entity entity = new Entity(cv);
576
577                // Set cursor to next row
578                cursor.moveToNext();
579
580                // Return the created Entity
581                return entity;
582            }
583        }
584     }
585
586    /**
587     * Constants and helpers for the Calendars table, which contains details for
588     * individual calendars. <h3>Operations</h3> All operations can be done
589     * either as an app or as a sync adapter. To perform an operation as a sync
590     * adapter {@link #CALLER_IS_SYNCADAPTER} should be set to true and
591     * {@link #ACCOUNT_NAME} and {@link #ACCOUNT_TYPE} must be set in the Uri
592     * parameters. See
593     * {@link Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)}
594     * for details on adding parameters. Sync adapters have write access to more
595     * columns but are restricted to a single account at a time. Calendars are
596     * designed to be primarily managed by a sync adapter and inserting new
597     * calendars should be done as a sync adapter. For the most part, apps
598     * should only update calendars (such as changing the color or display
599     * name). If a local calendar is required an app can do so by inserting as a
600     * sync adapter and using an {@link #ACCOUNT_TYPE} of
601     * {@link #ACCOUNT_TYPE_LOCAL} .
602     * <dl>
603     * <dt><b>Insert</b></dt>
604     * <dd>When inserting a new calendar the following fields must be included:
605     * <ul>
606     * <li>{@link #ACCOUNT_NAME}</li>
607     * <li>{@link #ACCOUNT_TYPE}</li>
608     * <li>{@link #NAME}</li>
609     * <li>{@link #CALENDAR_DISPLAY_NAME}</li>
610     * <li>{@link #CALENDAR_COLOR}</li>
611     * <li>{@link #CALENDAR_ACCESS_LEVEL}</li>
612     * <li>{@link #OWNER_ACCOUNT}</li>
613     * </ul>
614     * The following fields are not required when inserting a Calendar but are
615     * generally a good idea to include:
616     * <ul>
617     * <li>{@link #SYNC_EVENTS} set to 1</li>
618     * <li>{@link #CALENDAR_TIME_ZONE}</li>
619     * <li>{@link #ALLOWED_REMINDERS}</li>
620     * <li>{@link #ALLOWED_AVAILABILITY}</li>
621     * <li>{@link #ALLOWED_ATTENDEE_TYPES}</li>
622     * </ul>
623     * <dt><b>Update</b></dt>
624     * <dd>To perform an update on a calendar the {@link #_ID} of the calendar
625     * should be provided either as an appended id to the Uri (
626     * {@link ContentUris#withAppendedId}) or as the first selection item--the
627     * selection should start with "_id=?" and the first selectionArg should be
628     * the _id of the calendar. Calendars may also be updated using a selection
629     * without the id. In general, the {@link #ACCOUNT_NAME} and
630     * {@link #ACCOUNT_TYPE} should not be changed after a calendar is created
631     * as this can cause issues for sync adapters.
632     * <dt><b>Delete</b></dt>
633     * <dd>Calendars can be deleted either by the {@link #_ID} as an appended id
634     * on the Uri or using any standard selection. Deleting a calendar should
635     * generally be handled by a sync adapter as it will remove the calendar
636     * from the database and all associated data (aka events).</dd>
637     * <dt><b>Query</b></dt>
638     * <dd>Querying the Calendars table will get you all information about a set
639     * of calendars. There will be one row returned for each calendar that
640     * matches the query selection, or at most a single row if the {@link #_ID}
641     * is appended to the Uri.</dd>
642     * </dl>
643     * <h3>Calendar Columns</h3> The following Calendar columns are writable by
644     * both an app and a sync adapter.
645     * <ul>
646     * <li>{@link #NAME}</li>
647     * <li>{@link #CALENDAR_DISPLAY_NAME}</li>
648     * <li>{@link #VISIBLE}</li>
649     * <li>{@link #SYNC_EVENTS}</li>
650     * </ul>
651     * The following Calendars columns are writable only by a sync adapter
652     * <ul>
653     * <li>{@link #ACCOUNT_NAME}</li>
654     * <li>{@link #ACCOUNT_TYPE}</li>
655     * <li>{@link #CALENDAR_COLOR}</li>
656     * <li>{@link #_SYNC_ID}</li>
657     * <li>{@link #DIRTY}</li>
658     * <li>{@link #MUTATORS}</li>
659     * <li>{@link #OWNER_ACCOUNT}</li>
660     * <li>{@link #MAX_REMINDERS}</li>
661     * <li>{@link #ALLOWED_REMINDERS}</li>
662     * <li>{@link #ALLOWED_AVAILABILITY}</li>
663     * <li>{@link #ALLOWED_ATTENDEE_TYPES}</li>
664     * <li>{@link #CAN_MODIFY_TIME_ZONE}</li>
665     * <li>{@link #CAN_ORGANIZER_RESPOND}</li>
666     * <li>{@link #CAN_PARTIALLY_UPDATE}</li>
667     * <li>{@link #CALENDAR_LOCATION}</li>
668     * <li>{@link #CALENDAR_TIME_ZONE}</li>
669     * <li>{@link #CALENDAR_ACCESS_LEVEL}</li>
670     * <li>{@link #DELETED}</li>
671     * <li>{@link #CAL_SYNC1}</li>
672     * <li>{@link #CAL_SYNC2}</li>
673     * <li>{@link #CAL_SYNC3}</li>
674     * <li>{@link #CAL_SYNC4}</li>
675     * <li>{@link #CAL_SYNC5}</li>
676     * <li>{@link #CAL_SYNC6}</li>
677     * <li>{@link #CAL_SYNC7}</li>
678     * <li>{@link #CAL_SYNC8}</li>
679     * <li>{@link #CAL_SYNC9}</li>
680     * <li>{@link #CAL_SYNC10}</li>
681     * </ul>
682     */
683    public static final class Calendars implements BaseColumns, SyncColumns, CalendarColumns {
684
685        /**
686         * This utility class cannot be instantiated
687         */
688        private Calendars() {}
689
690        /**
691         * The content:// style URL for accessing Calendars
692         */
693        @SuppressWarnings("hiding")
694        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/calendars");
695
696        /**
697         * The default sort order for this table
698         */
699        public static final String DEFAULT_SORT_ORDER = CALENDAR_DISPLAY_NAME;
700
701        /**
702         * The name of the calendar. Column name.
703         * <P>Type: TEXT</P>
704         */
705        public static final String NAME = "name";
706
707        /**
708         * The default location for the calendar. Column name.
709         * <P>Type: TEXT</P>
710         */
711        public static final String CALENDAR_LOCATION = "calendar_location";
712
713        /**
714         * These fields are only writable by a sync adapter. To modify them the
715         * caller must include {@link #CALLER_IS_SYNCADAPTER},
716         * {@link #ACCOUNT_NAME}, and {@link #ACCOUNT_TYPE} in the Uri's query
717         * parameters. TODO move to provider
718         *
719         * @hide
720         */
721        public static final String[] SYNC_WRITABLE_COLUMNS = new String[] {
722            ACCOUNT_NAME,
723            ACCOUNT_TYPE,
724            _SYNC_ID,
725            DIRTY,
726            MUTATORS,
727            OWNER_ACCOUNT,
728            MAX_REMINDERS,
729            ALLOWED_REMINDERS,
730            CAN_MODIFY_TIME_ZONE,
731            CAN_ORGANIZER_RESPOND,
732            CAN_PARTIALLY_UPDATE,
733            CALENDAR_LOCATION,
734            CALENDAR_TIME_ZONE,
735            CALENDAR_ACCESS_LEVEL,
736            DELETED,
737            CAL_SYNC1,
738            CAL_SYNC2,
739            CAL_SYNC3,
740            CAL_SYNC4,
741            CAL_SYNC5,
742            CAL_SYNC6,
743            CAL_SYNC7,
744            CAL_SYNC8,
745            CAL_SYNC9,
746            CAL_SYNC10,
747        };
748    }
749
750    /**
751     * Columns from the Attendees table that other tables join into themselves.
752     */
753    protected interface AttendeesColumns {
754
755        /**
756         * The id of the event. Column name.
757         * <P>Type: INTEGER</P>
758         */
759        public static final String EVENT_ID = "event_id";
760
761        /**
762         * The name of the attendee. Column name.
763         * <P>Type: STRING</P>
764         */
765        public static final String ATTENDEE_NAME = "attendeeName";
766
767        /**
768         * The email address of the attendee. Column name.
769         * <P>Type: STRING</P>
770         */
771        public static final String ATTENDEE_EMAIL = "attendeeEmail";
772
773        /**
774         * The relationship of the attendee to the user. Column name.
775         * <P>Type: INTEGER (one of {@link #RELATIONSHIP_ATTENDEE}, ...}.</P>
776         */
777        public static final String ATTENDEE_RELATIONSHIP = "attendeeRelationship";
778
779        public static final int RELATIONSHIP_NONE = 0;
780        public static final int RELATIONSHIP_ATTENDEE = 1;
781        public static final int RELATIONSHIP_ORGANIZER = 2;
782        public static final int RELATIONSHIP_PERFORMER = 3;
783        public static final int RELATIONSHIP_SPEAKER = 4;
784
785        /**
786         * The type of attendee. Column name.
787         * <P>
788         * Type: Integer (one of {@link #TYPE_NONE}, {@link #TYPE_REQUIRED},
789         * {@link #TYPE_OPTIONAL}, {@link #TYPE_RESOURCE})
790         * </P>
791         */
792        public static final String ATTENDEE_TYPE = "attendeeType";
793
794        public static final int TYPE_NONE = 0;
795        public static final int TYPE_REQUIRED = 1;
796        public static final int TYPE_OPTIONAL = 2;
797        /**
798         * This specifies that an attendee is a resource, like a room, a
799         * cabbage, or something and not an actual person.
800         */
801        public static final int TYPE_RESOURCE = 3;
802
803        /**
804         * The attendance status of the attendee. Column name.
805         * <P>Type: Integer (one of {@link #ATTENDEE_STATUS_ACCEPTED}, ...).</P>
806         */
807        public static final String ATTENDEE_STATUS = "attendeeStatus";
808
809        public static final int ATTENDEE_STATUS_NONE = 0;
810        public static final int ATTENDEE_STATUS_ACCEPTED = 1;
811        public static final int ATTENDEE_STATUS_DECLINED = 2;
812        public static final int ATTENDEE_STATUS_INVITED = 3;
813        public static final int ATTENDEE_STATUS_TENTATIVE = 4;
814
815        /**
816         * The identity of the attendee as referenced in
817         * {@link ContactsContract.CommonDataKinds.Identity#IDENTITY}.
818         * This is required only if {@link #ATTENDEE_ID_NAMESPACE} is present. Column name.
819         * <P>Type: STRING</P>
820         */
821        public static final String ATTENDEE_IDENTITY = "attendeeIdentity";
822
823        /**
824         * The identity name space of the attendee as referenced in
825         * {@link ContactsContract.CommonDataKinds.Identity#NAMESPACE}.
826         * This is required only if {@link #ATTENDEE_IDENTITY} is present. Column name.
827         * <P>Type: STRING</P>
828         */
829        public static final String ATTENDEE_ID_NAMESPACE = "attendeeIdNamespace";
830    }
831
832    /**
833     * Fields and helpers for interacting with Attendees. Each row of this table
834     * represents a single attendee or guest of an event. Calling
835     * {@link #query(ContentResolver, long, String[])} will return a list of attendees for
836     * the event with the given eventId. Both apps and sync adapters may write
837     * to this table. There are six writable fields and all of them except
838     * {@link #ATTENDEE_NAME} must be included when inserting a new attendee.
839     * They are:
840     * <ul>
841     * <li>{@link #EVENT_ID}</li>
842     * <li>{@link #ATTENDEE_NAME}</li>
843     * <li>{@link #ATTENDEE_EMAIL}</li>
844     * <li>{@link #ATTENDEE_RELATIONSHIP}</li>
845     * <li>{@link #ATTENDEE_TYPE}</li>
846     * <li>{@link #ATTENDEE_STATUS}</li>
847     * <li>{@link #ATTENDEE_IDENTITY}</li>
848     * <li>{@link #ATTENDEE_ID_NAMESPACE}</li>
849     * </ul>
850     */
851    public static final class Attendees implements BaseColumns, AttendeesColumns, EventsColumns {
852
853        /**
854         * The content:// style URL for accessing Attendees data
855         */
856        @SuppressWarnings("hiding")
857        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/attendees");
858        private static final String ATTENDEES_WHERE = Attendees.EVENT_ID + "=?";
859
860        /**
861         * This utility class cannot be instantiated
862         */
863        private Attendees() {}
864
865        /**
866         * Queries all attendees associated with the given event. This is a
867         * blocking call and should not be done on the UI thread.
868         *
869         * @param cr The content resolver to use for the query
870         * @param eventId The id of the event to retrieve attendees for
871         * @param projection the columns to return in the cursor
872         * @return A Cursor containing all attendees for the event
873         */
874        public static final Cursor query(ContentResolver cr, long eventId, String[] projection) {
875            String[] attArgs = {Long.toString(eventId)};
876            return cr.query(CONTENT_URI, projection, ATTENDEES_WHERE, attArgs /* selection args */,
877                    null /* sort order */);
878        }
879    }
880
881    /**
882     * Columns from the Events table that other tables join into themselves.
883     */
884    protected interface EventsColumns {
885
886        /**
887         * The {@link Calendars#_ID} of the calendar the event belongs to.
888         * Column name.
889         * <P>Type: INTEGER</P>
890         */
891        public static final String CALENDAR_ID = "calendar_id";
892
893        /**
894         * The title of the event. Column name.
895         * <P>Type: TEXT</P>
896         */
897        public static final String TITLE = "title";
898
899        /**
900         * The description of the event. Column name.
901         * <P>Type: TEXT</P>
902         */
903        public static final String DESCRIPTION = "description";
904
905        /**
906         * Where the event takes place. Column name.
907         * <P>Type: TEXT</P>
908         */
909        public static final String EVENT_LOCATION = "eventLocation";
910
911        /**
912         * A secondary color for the individual event. This should only be
913         * updated by the sync adapter for a given account.
914         * <P>Type: INTEGER</P>
915         */
916        public static final String EVENT_COLOR = "eventColor";
917
918        /**
919         * A secondary color key for the individual event. NULL or an empty
920         * string are reserved for indicating that the event does not use a key
921         * for looking up the color. The provider will update
922         * {@link #EVENT_COLOR} automatically when a valid key is written to
923         * this column. The key must reference an existing row of the
924         * {@link Colors} table. @see Colors
925         * <P>
926         * Type: TEXT
927         * </P>
928         */
929        public static final String EVENT_COLOR_KEY = "eventColor_index";
930
931        /**
932         * This will be {@link #EVENT_COLOR} if it is not null; otherwise, this will be
933         * {@link Calendars#CALENDAR_COLOR}.
934         * Read-only value. To modify, write to {@link #EVENT_COLOR} or
935         * {@link Calendars#CALENDAR_COLOR} directly.
936         *<P>
937         *     Type: INTEGER
938         *</P>
939         */
940        public static final String DISPLAY_COLOR = "displayColor";
941
942        /**
943         * The event status. Column name.
944         * <P>Type: INTEGER (one of {@link #STATUS_TENTATIVE}...)</P>
945         */
946        public static final String STATUS = "eventStatus";
947
948        public static final int STATUS_TENTATIVE = 0;
949        public static final int STATUS_CONFIRMED = 1;
950        public static final int STATUS_CANCELED = 2;
951
952        /**
953         * This is a copy of the attendee status for the owner of this event.
954         * This field is copied here so that we can efficiently filter out
955         * events that are declined without having to look in the Attendees
956         * table. Column name.
957         *
958         * <P>Type: INTEGER (int)</P>
959         */
960        public static final String SELF_ATTENDEE_STATUS = "selfAttendeeStatus";
961
962        /**
963         * This column is available for use by sync adapters. Column name.
964         * <P>Type: TEXT</P>
965         */
966        public static final String SYNC_DATA1 = "sync_data1";
967
968        /**
969         * This column is available for use by sync adapters. Column name.
970         * <P>Type: TEXT</P>
971         */
972        public static final String SYNC_DATA2 = "sync_data2";
973
974        /**
975         * This column is available for use by sync adapters. Column name.
976         * <P>Type: TEXT</P>
977         */
978        public static final String SYNC_DATA3 = "sync_data3";
979
980        /**
981         * This column is available for use by sync adapters. Column name.
982         * <P>Type: TEXT</P>
983         */
984        public static final String SYNC_DATA4 = "sync_data4";
985
986        /**
987         * This column is available for use by sync adapters. Column name.
988         * <P>Type: TEXT</P>
989         */
990        public static final String SYNC_DATA5 = "sync_data5";
991
992        /**
993         * This column is available for use by sync adapters. Column name.
994         * <P>Type: TEXT</P>
995         */
996        public static final String SYNC_DATA6 = "sync_data6";
997
998        /**
999         * This column is available for use by sync adapters. Column name.
1000         * <P>Type: TEXT</P>
1001         */
1002        public static final String SYNC_DATA7 = "sync_data7";
1003
1004        /**
1005         * This column is available for use by sync adapters. Column name.
1006         * <P>Type: TEXT</P>
1007         */
1008        public static final String SYNC_DATA8 = "sync_data8";
1009
1010        /**
1011         * This column is available for use by sync adapters. Column name.
1012         * <P>Type: TEXT</P>
1013         */
1014        public static final String SYNC_DATA9 = "sync_data9";
1015
1016        /**
1017         * This column is available for use by sync adapters. Column name.
1018         * <P>Type: TEXT</P>
1019         */
1020        public static final String SYNC_DATA10 = "sync_data10";
1021
1022        /**
1023         * Used to indicate that a row is not a real event but an original copy of a locally
1024         * modified event. A copy is made when an event changes from non-dirty to dirty and the
1025         * event is on a calendar with {@link Calendars#CAN_PARTIALLY_UPDATE} set to 1. This copy
1026         * does not get expanded in the instances table and is only visible in queries made by a
1027         * sync adapter. The copy gets removed when the event is changed back to non-dirty by a
1028         * sync adapter.
1029         * <P>Type: INTEGER (boolean)</P>
1030         */
1031        public static final String LAST_SYNCED = "lastSynced";
1032
1033        /**
1034         * The time the event starts in UTC millis since epoch. Column name.
1035         * <P>Type: INTEGER (long; millis since epoch)</P>
1036         */
1037        public static final String DTSTART = "dtstart";
1038
1039        /**
1040         * The time the event ends in UTC millis since epoch. Column name.
1041         * <P>Type: INTEGER (long; millis since epoch)</P>
1042         */
1043        public static final String DTEND = "dtend";
1044
1045        /**
1046         * The duration of the event in RFC2445 format. Column name.
1047         * <P>Type: TEXT (duration in RFC2445 format)</P>
1048         */
1049        public static final String DURATION = "duration";
1050
1051        /**
1052         * The timezone for the event. Column name.
1053         * <P>Type: TEXT</P>
1054         */
1055        public static final String EVENT_TIMEZONE = "eventTimezone";
1056
1057        /**
1058         * The timezone for the end time of the event. Column name.
1059         * <P>Type: TEXT</P>
1060         */
1061        public static final String EVENT_END_TIMEZONE = "eventEndTimezone";
1062
1063        /**
1064         * Is the event all day (time zone independent). Column name.
1065         * <P>Type: INTEGER (boolean)</P>
1066         */
1067        public static final String ALL_DAY = "allDay";
1068
1069        /**
1070         * Defines how the event shows up for others when the calendar is
1071         * shared. Column name.
1072         * <P>Type: INTEGER (One of {@link #ACCESS_DEFAULT}, ...)</P>
1073         */
1074        public static final String ACCESS_LEVEL = "accessLevel";
1075
1076        /**
1077         * Default access is controlled by the server and will be treated as
1078         * public on the device.
1079         */
1080        public static final int ACCESS_DEFAULT = 0;
1081        /**
1082         * Confidential is not used by the app.
1083         */
1084        public static final int ACCESS_CONFIDENTIAL = 1;
1085        /**
1086         * Private shares the event as a free/busy slot with no details.
1087         */
1088        public static final int ACCESS_PRIVATE = 2;
1089        /**
1090         * Public makes the contents visible to anyone with access to the
1091         * calendar.
1092         */
1093        public static final int ACCESS_PUBLIC = 3;
1094
1095        /**
1096         * If this event counts as busy time or is still free time that can be
1097         * scheduled over. Column name.
1098         * <P>
1099         * Type: INTEGER (One of {@link #AVAILABILITY_BUSY},
1100         * {@link #AVAILABILITY_FREE}, {@link #AVAILABILITY_TENTATIVE})
1101         * </P>
1102         */
1103        public static final String AVAILABILITY = "availability";
1104
1105        /**
1106         * Indicates that this event takes up time and will conflict with other
1107         * events.
1108         */
1109        public static final int AVAILABILITY_BUSY = 0;
1110        /**
1111         * Indicates that this event is free time and will not conflict with
1112         * other events.
1113         */
1114        public static final int AVAILABILITY_FREE = 1;
1115        /**
1116         * Indicates that the owner's availability may change, but should be
1117         * considered busy time that will conflict.
1118         */
1119        public static final int AVAILABILITY_TENTATIVE = 2;
1120
1121        /**
1122         * Whether the event has an alarm or not. Column name.
1123         * <P>Type: INTEGER (boolean)</P>
1124         */
1125        public static final String HAS_ALARM = "hasAlarm";
1126
1127        /**
1128         * Whether the event has extended properties or not. Column name.
1129         * <P>Type: INTEGER (boolean)</P>
1130         */
1131        public static final String HAS_EXTENDED_PROPERTIES = "hasExtendedProperties";
1132
1133        /**
1134         * The recurrence rule for the event. Column name.
1135         * <P>Type: TEXT</P>
1136         */
1137        public static final String RRULE = "rrule";
1138
1139        /**
1140         * The recurrence dates for the event. Column name.
1141         * <P>Type: TEXT</P>
1142         */
1143        public static final String RDATE = "rdate";
1144
1145        /**
1146         * The recurrence exception rule for the event. Column name.
1147         * <P>Type: TEXT</P>
1148         */
1149        public static final String EXRULE = "exrule";
1150
1151        /**
1152         * The recurrence exception dates for the event. Column name.
1153         * <P>Type: TEXT</P>
1154         */
1155        public static final String EXDATE = "exdate";
1156
1157        /**
1158         * The {@link Events#_ID} of the original recurring event for which this
1159         * event is an exception. Column name.
1160         * <P>Type: TEXT</P>
1161         */
1162        public static final String ORIGINAL_ID = "original_id";
1163
1164        /**
1165         * The _sync_id of the original recurring event for which this event is
1166         * an exception. The provider should keep the original_id in sync when
1167         * this is updated. Column name.
1168         * <P>Type: TEXT</P>
1169         */
1170        public static final String ORIGINAL_SYNC_ID = "original_sync_id";
1171
1172        /**
1173         * The original instance time of the recurring event for which this
1174         * event is an exception. Column name.
1175         * <P>Type: INTEGER (long; millis since epoch)</P>
1176         */
1177        public static final String ORIGINAL_INSTANCE_TIME = "originalInstanceTime";
1178
1179        /**
1180         * The allDay status (true or false) of the original recurring event
1181         * for which this event is an exception. Column name.
1182         * <P>Type: INTEGER (boolean)</P>
1183         */
1184        public static final String ORIGINAL_ALL_DAY = "originalAllDay";
1185
1186        /**
1187         * The last date this event repeats on, or NULL if it never ends. Column
1188         * name.
1189         * <P>Type: INTEGER (long; millis since epoch)</P>
1190         */
1191        public static final String LAST_DATE = "lastDate";
1192
1193        /**
1194         * Whether the event has attendee information.  True if the event
1195         * has full attendee data, false if the event has information about
1196         * self only. Column name.
1197         * <P>Type: INTEGER (boolean)</P>
1198         */
1199        public static final String HAS_ATTENDEE_DATA = "hasAttendeeData";
1200
1201        /**
1202         * Whether guests can modify the event. Column name.
1203         * <P>Type: INTEGER (boolean)</P>
1204         */
1205        public static final String GUESTS_CAN_MODIFY = "guestsCanModify";
1206
1207        /**
1208         * Whether guests can invite other guests. Column name.
1209         * <P>Type: INTEGER (boolean)</P>
1210         */
1211        public static final String GUESTS_CAN_INVITE_OTHERS = "guestsCanInviteOthers";
1212
1213        /**
1214         * Whether guests can see the list of attendees. Column name.
1215         * <P>Type: INTEGER (boolean)</P>
1216         */
1217        public static final String GUESTS_CAN_SEE_GUESTS = "guestsCanSeeGuests";
1218
1219        /**
1220         * Email of the organizer (owner) of the event. Column name.
1221         * <P>Type: STRING</P>
1222         */
1223        public static final String ORGANIZER = "organizer";
1224
1225        /**
1226         * Are we the organizer of this event. If this column is not explicitly set, the provider
1227         * will return 1 if {@link #ORGANIZER} is equal to {@link Calendars#OWNER_ACCOUNT}.
1228         * Column name.
1229         * <P>Type: STRING</P>
1230         */
1231        public static final String IS_ORGANIZER = "isOrganizer";
1232
1233        /**
1234         * Whether the user can invite others to the event. The
1235         * GUESTS_CAN_INVITE_OTHERS is a setting that applies to an arbitrary
1236         * guest, while CAN_INVITE_OTHERS indicates if the user can invite
1237         * others (either through GUESTS_CAN_INVITE_OTHERS or because the user
1238         * has modify access to the event). Column name.
1239         * <P>Type: INTEGER (boolean, readonly)</P>
1240         */
1241        public static final String CAN_INVITE_OTHERS = "canInviteOthers";
1242
1243        /**
1244         * The package name of the custom app that can provide a richer
1245         * experience for the event. See the ACTION TYPE
1246         * {@link CalendarContract#ACTION_HANDLE_CUSTOM_EVENT} for details.
1247         * Column name.
1248         * <P> Type: TEXT </P>
1249         */
1250        public static final String CUSTOM_APP_PACKAGE = "customAppPackage";
1251
1252        /**
1253         * The URI used by the custom app for the event. Column name.
1254         * <P>Type: TEXT</P>
1255         */
1256        public static final String CUSTOM_APP_URI = "customAppUri";
1257
1258        /**
1259         * The UID for events added from the RFC 2445 iCalendar format.
1260         * Column name.
1261         * <P>Type: TEXT</P>
1262         */
1263        public static final String UID_2445 = "uid2445";
1264    }
1265
1266    /**
1267     * Class that represents an Event Entity. There is one entry per event.
1268     * Recurring events show up as a single entry. This is a helper class to
1269     * make batch operations easier. A {@link ContentResolver} or
1270     * {@link ContentProviderClient} is required as the helper does additional
1271     * queries to add reminders and attendees to each entry.
1272     */
1273    public static final class EventsEntity implements BaseColumns, SyncColumns, EventsColumns {
1274        /**
1275         * The content:// style URL for this table
1276         */
1277        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
1278                "/event_entities");
1279
1280        /**
1281         * This utility class cannot be instantiated
1282         */
1283        private EventsEntity() {}
1284
1285        /**
1286         * Creates a new iterator for events
1287         *
1288         * @param cursor An event query
1289         * @param resolver For performing additional queries
1290         * @return an EntityIterator containing one entity per event in the
1291         *         cursor
1292         */
1293        public static EntityIterator newEntityIterator(Cursor cursor, ContentResolver resolver) {
1294            return new EntityIteratorImpl(cursor, resolver);
1295        }
1296
1297        /**
1298         * Creates a new iterator for events
1299         *
1300         * @param cursor An event query
1301         * @param provider For performing additional queries
1302         * @return an EntityIterator containing one entity per event in the
1303         *         cursor
1304         */
1305        public static EntityIterator newEntityIterator(Cursor cursor,
1306                ContentProviderClient provider) {
1307            return new EntityIteratorImpl(cursor, provider);
1308        }
1309
1310        private static class EntityIteratorImpl extends CursorEntityIterator {
1311            private final ContentResolver mResolver;
1312            private final ContentProviderClient mProvider;
1313
1314            private static final String[] REMINDERS_PROJECTION = new String[] {
1315                    Reminders.MINUTES,
1316                    Reminders.METHOD,
1317            };
1318            private static final int COLUMN_MINUTES = 0;
1319            private static final int COLUMN_METHOD = 1;
1320
1321            private static final String[] ATTENDEES_PROJECTION = new String[] {
1322                    Attendees.ATTENDEE_NAME,
1323                    Attendees.ATTENDEE_EMAIL,
1324                    Attendees.ATTENDEE_RELATIONSHIP,
1325                    Attendees.ATTENDEE_TYPE,
1326                    Attendees.ATTENDEE_STATUS,
1327                    Attendees.ATTENDEE_IDENTITY,
1328                    Attendees.ATTENDEE_ID_NAMESPACE
1329            };
1330            private static final int COLUMN_ATTENDEE_NAME = 0;
1331            private static final int COLUMN_ATTENDEE_EMAIL = 1;
1332            private static final int COLUMN_ATTENDEE_RELATIONSHIP = 2;
1333            private static final int COLUMN_ATTENDEE_TYPE = 3;
1334            private static final int COLUMN_ATTENDEE_STATUS = 4;
1335            private static final int COLUMN_ATTENDEE_IDENTITY = 5;
1336            private static final int COLUMN_ATTENDEE_ID_NAMESPACE = 6;
1337
1338            private static final String[] EXTENDED_PROJECTION = new String[] {
1339                    ExtendedProperties._ID,
1340                    ExtendedProperties.NAME,
1341                    ExtendedProperties.VALUE
1342            };
1343            private static final int COLUMN_ID = 0;
1344            private static final int COLUMN_NAME = 1;
1345            private static final int COLUMN_VALUE = 2;
1346
1347            private static final String WHERE_EVENT_ID = "event_id=?";
1348
1349            public EntityIteratorImpl(Cursor cursor, ContentResolver resolver) {
1350                super(cursor);
1351                mResolver = resolver;
1352                mProvider = null;
1353            }
1354
1355            public EntityIteratorImpl(Cursor cursor, ContentProviderClient provider) {
1356                super(cursor);
1357                mResolver = null;
1358                mProvider = provider;
1359            }
1360
1361            @Override
1362            public Entity getEntityAndIncrementCursor(Cursor cursor) throws RemoteException {
1363                // we expect the cursor is already at the row we need to read from
1364                final long eventId = cursor.getLong(cursor.getColumnIndexOrThrow(Events._ID));
1365                ContentValues cv = new ContentValues();
1366                cv.put(Events._ID, eventId);
1367                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, CALENDAR_ID);
1368                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, TITLE);
1369                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, DESCRIPTION);
1370                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_LOCATION);
1371                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, STATUS);
1372                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, SELF_ATTENDEE_STATUS);
1373                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DTSTART);
1374                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DTEND);
1375                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, DURATION);
1376                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_TIMEZONE);
1377                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_END_TIMEZONE);
1378                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ALL_DAY);
1379                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, ACCESS_LEVEL);
1380                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, AVAILABILITY);
1381                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, HAS_ALARM);
1382                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
1383                        HAS_EXTENDED_PROPERTIES);
1384                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, RRULE);
1385                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, RDATE);
1386                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EXRULE);
1387                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EXDATE);
1388                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORIGINAL_SYNC_ID);
1389                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORIGINAL_ID);
1390                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv,
1391                        ORIGINAL_INSTANCE_TIME);
1392                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, ORIGINAL_ALL_DAY);
1393                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, LAST_DATE);
1394                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, HAS_ATTENDEE_DATA);
1395                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
1396                        GUESTS_CAN_INVITE_OTHERS);
1397                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, GUESTS_CAN_MODIFY);
1398                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, GUESTS_CAN_SEE_GUESTS);
1399                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CUSTOM_APP_PACKAGE);
1400                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CUSTOM_APP_URI);
1401                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, UID_2445);
1402                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORGANIZER);
1403                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, IS_ORGANIZER);
1404                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, _SYNC_ID);
1405                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DIRTY);
1406                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, MUTATORS);
1407                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, LAST_SYNCED);
1408                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, DELETED);
1409                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA1);
1410                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA2);
1411                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA3);
1412                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA4);
1413                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA5);
1414                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA6);
1415                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA7);
1416                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA8);
1417                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA9);
1418                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA10);
1419                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC1);
1420                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC2);
1421                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC3);
1422                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC4);
1423                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC5);
1424                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC6);
1425                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC7);
1426                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC8);
1427                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC9);
1428                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC10);
1429
1430                Entity entity = new Entity(cv);
1431                Cursor subCursor;
1432                if (mResolver != null) {
1433                    subCursor = mResolver.query(Reminders.CONTENT_URI, REMINDERS_PROJECTION,
1434                            WHERE_EVENT_ID,
1435                            new String[] { Long.toString(eventId) }  /* selectionArgs */,
1436                            null /* sortOrder */);
1437                } else {
1438                    subCursor = mProvider.query(Reminders.CONTENT_URI, REMINDERS_PROJECTION,
1439                            WHERE_EVENT_ID,
1440                            new String[] { Long.toString(eventId) }  /* selectionArgs */,
1441                            null /* sortOrder */);
1442                }
1443                try {
1444                    while (subCursor.moveToNext()) {
1445                        ContentValues reminderValues = new ContentValues();
1446                        reminderValues.put(Reminders.MINUTES, subCursor.getInt(COLUMN_MINUTES));
1447                        reminderValues.put(Reminders.METHOD, subCursor.getInt(COLUMN_METHOD));
1448                        entity.addSubValue(Reminders.CONTENT_URI, reminderValues);
1449                    }
1450                } finally {
1451                    subCursor.close();
1452                }
1453
1454                if (mResolver != null) {
1455                    subCursor = mResolver.query(Attendees.CONTENT_URI, ATTENDEES_PROJECTION,
1456                            WHERE_EVENT_ID,
1457                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1458                            null /* sortOrder */);
1459                } else {
1460                    subCursor = mProvider.query(Attendees.CONTENT_URI, ATTENDEES_PROJECTION,
1461                            WHERE_EVENT_ID,
1462                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1463                            null /* sortOrder */);
1464                }
1465                try {
1466                    while (subCursor.moveToNext()) {
1467                        ContentValues attendeeValues = new ContentValues();
1468                        attendeeValues.put(Attendees.ATTENDEE_NAME,
1469                                subCursor.getString(COLUMN_ATTENDEE_NAME));
1470                        attendeeValues.put(Attendees.ATTENDEE_EMAIL,
1471                                subCursor.getString(COLUMN_ATTENDEE_EMAIL));
1472                        attendeeValues.put(Attendees.ATTENDEE_RELATIONSHIP,
1473                                subCursor.getInt(COLUMN_ATTENDEE_RELATIONSHIP));
1474                        attendeeValues.put(Attendees.ATTENDEE_TYPE,
1475                                subCursor.getInt(COLUMN_ATTENDEE_TYPE));
1476                        attendeeValues.put(Attendees.ATTENDEE_STATUS,
1477                                subCursor.getInt(COLUMN_ATTENDEE_STATUS));
1478                        attendeeValues.put(Attendees.ATTENDEE_IDENTITY,
1479                                subCursor.getString(COLUMN_ATTENDEE_IDENTITY));
1480                        attendeeValues.put(Attendees.ATTENDEE_ID_NAMESPACE,
1481                                subCursor.getString(COLUMN_ATTENDEE_ID_NAMESPACE));
1482                        entity.addSubValue(Attendees.CONTENT_URI, attendeeValues);
1483                    }
1484                } finally {
1485                    subCursor.close();
1486                }
1487
1488                if (mResolver != null) {
1489                    subCursor = mResolver.query(ExtendedProperties.CONTENT_URI, EXTENDED_PROJECTION,
1490                            WHERE_EVENT_ID,
1491                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1492                            null /* sortOrder */);
1493                } else {
1494                    subCursor = mProvider.query(ExtendedProperties.CONTENT_URI, EXTENDED_PROJECTION,
1495                            WHERE_EVENT_ID,
1496                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1497                            null /* sortOrder */);
1498                }
1499                try {
1500                    while (subCursor.moveToNext()) {
1501                        ContentValues extendedValues = new ContentValues();
1502                        extendedValues.put(ExtendedProperties._ID,
1503                                subCursor.getString(COLUMN_ID));
1504                        extendedValues.put(ExtendedProperties.NAME,
1505                                subCursor.getString(COLUMN_NAME));
1506                        extendedValues.put(ExtendedProperties.VALUE,
1507                                subCursor.getString(COLUMN_VALUE));
1508                        entity.addSubValue(ExtendedProperties.CONTENT_URI, extendedValues);
1509                    }
1510                } finally {
1511                    subCursor.close();
1512                }
1513
1514                cursor.moveToNext();
1515                return entity;
1516            }
1517        }
1518    }
1519
1520    /**
1521     * Constants and helpers for the Events table, which contains details for
1522     * individual events. <h3>Operations</h3> All operations can be done either
1523     * as an app or as a sync adapter. To perform an operation as a sync adapter
1524     * {@link #CALLER_IS_SYNCADAPTER} should be set to true and
1525     * {@link #ACCOUNT_NAME} and {@link #ACCOUNT_TYPE} must be set in the Uri
1526     * parameters. See
1527     * {@link Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)}
1528     * for details on adding parameters. Sync adapters have write access to more
1529     * columns but are restricted to a single account at a time.
1530     * <dl>
1531     * <dt><b>Insert</b></dt>
1532     * <dd>When inserting a new event the following fields must be included:
1533     * <ul>
1534     * <li>dtstart</li>
1535     * <li>dtend if the event is non-recurring</li>
1536     * <li>duration if the event is recurring</li>
1537     * <li>rrule or rdate if the event is recurring</li>
1538     * <li>eventTimezone</li>
1539     * <li>a calendar_id</li>
1540     * </ul>
1541     * There are also further requirements when inserting or updating an event.
1542     * See the section on Writing to Events.</dd>
1543     * <dt><b>Update</b></dt>
1544     * <dd>To perform an update of an Event the {@link Events#_ID} of the event
1545     * should be provided either as an appended id to the Uri (
1546     * {@link ContentUris#withAppendedId}) or as the first selection item--the
1547     * selection should start with "_id=?" and the first selectionArg should be
1548     * the _id of the event. Updates may also be done using a selection and no
1549     * id. Updating an event must respect the same rules as inserting and is
1550     * further restricted in the fields that can be written. See the section on
1551     * Writing to Events.</dd>
1552     * <dt><b>Delete</b></dt>
1553     * <dd>Events can be deleted either by the {@link Events#_ID} as an appended
1554     * id on the Uri or using any standard selection. If an appended id is used
1555     * a selection is not allowed. There are two versions of delete: as an app
1556     * and as a sync adapter. An app delete will set the deleted column on an
1557     * event and remove all instances of that event. A sync adapter delete will
1558     * remove the event from the database and all associated data.</dd>
1559     * <dt><b>Query</b></dt>
1560     * <dd>Querying the Events table will get you all information about a set of
1561     * events except their reminders, attendees, and extended properties. There
1562     * will be one row returned for each event that matches the query selection,
1563     * or at most a single row if the {@link Events#_ID} is appended to the Uri.
1564     * Recurring events will only return a single row regardless of the number
1565     * of times that event repeats.</dd>
1566     * </dl>
1567     * <h3>Writing to Events</h3> There are further restrictions on all Updates
1568     * and Inserts in the Events table:
1569     * <ul>
1570     * <li>If allDay is set to 1 eventTimezone must be {@link Time#TIMEZONE_UTC}
1571     * and the time must correspond to a midnight boundary.</li>
1572     * <li>Exceptions are not allowed to recur. If rrule or rdate is not empty,
1573     * original_id and original_sync_id must be empty.</li>
1574     * <li>In general a calendar_id should not be modified after insertion. This
1575     * is not explicitly forbidden but many sync adapters will not behave in an
1576     * expected way if the calendar_id is modified.</li>
1577     * </ul>
1578     * The following Events columns are writable by both an app and a sync
1579     * adapter.
1580     * <ul>
1581     * <li>{@link #CALENDAR_ID}</li>
1582     * <li>{@link #ORGANIZER}</li>
1583     * <li>{@link #TITLE}</li>
1584     * <li>{@link #EVENT_LOCATION}</li>
1585     * <li>{@link #DESCRIPTION}</li>
1586     * <li>{@link #EVENT_COLOR}</li>
1587     * <li>{@link #DTSTART}</li>
1588     * <li>{@link #DTEND}</li>
1589     * <li>{@link #EVENT_TIMEZONE}</li>
1590     * <li>{@link #EVENT_END_TIMEZONE}</li>
1591     * <li>{@link #DURATION}</li>
1592     * <li>{@link #ALL_DAY}</li>
1593     * <li>{@link #RRULE}</li>
1594     * <li>{@link #RDATE}</li>
1595     * <li>{@link #EXRULE}</li>
1596     * <li>{@link #EXDATE}</li>
1597     * <li>{@link #ORIGINAL_ID}</li>
1598     * <li>{@link #ORIGINAL_SYNC_ID}</li>
1599     * <li>{@link #ORIGINAL_INSTANCE_TIME}</li>
1600     * <li>{@link #ORIGINAL_ALL_DAY}</li>
1601     * <li>{@link #ACCESS_LEVEL}</li>
1602     * <li>{@link #AVAILABILITY}</li>
1603     * <li>{@link #GUESTS_CAN_MODIFY}</li>
1604     * <li>{@link #GUESTS_CAN_INVITE_OTHERS}</li>
1605     * <li>{@link #GUESTS_CAN_SEE_GUESTS}</li>
1606     * <li>{@link #CUSTOM_APP_PACKAGE}</li>
1607     * <li>{@link #CUSTOM_APP_URI}</li>
1608     * <li>{@link #UID_2445}</li>
1609     * </ul>
1610     * The following Events columns are writable only by a sync adapter
1611     * <ul>
1612     * <li>{@link #DIRTY}</li>
1613     * <li>{@link #MUTATORS}</li>
1614     * <li>{@link #_SYNC_ID}</li>
1615     * <li>{@link #SYNC_DATA1}</li>
1616     * <li>{@link #SYNC_DATA2}</li>
1617     * <li>{@link #SYNC_DATA3}</li>
1618     * <li>{@link #SYNC_DATA4}</li>
1619     * <li>{@link #SYNC_DATA5}</li>
1620     * <li>{@link #SYNC_DATA6}</li>
1621     * <li>{@link #SYNC_DATA7}</li>
1622     * <li>{@link #SYNC_DATA8}</li>
1623     * <li>{@link #SYNC_DATA9}</li>
1624     * <li>{@link #SYNC_DATA10}</li>
1625     * </ul>
1626     * The remaining columns are either updated by the provider only or are
1627     * views into other tables and cannot be changed through the Events table.
1628     */
1629    public static final class Events implements BaseColumns, SyncColumns, EventsColumns,
1630            CalendarColumns {
1631
1632        /**
1633         * The content:// style URL for interacting with events. Appending an
1634         * event id using {@link ContentUris#withAppendedId(Uri, long)} will
1635         * specify a single event.
1636         */
1637        @SuppressWarnings("hiding")
1638        public static final Uri CONTENT_URI =
1639                Uri.parse("content://" + AUTHORITY + "/events");
1640
1641        /**
1642         * The content:// style URI for recurring event exceptions.  Insertions require an
1643         * appended event ID.  Deletion of exceptions requires both the original event ID and
1644         * the exception event ID (see {@link Uri.Builder#appendPath}).
1645         */
1646        public static final Uri CONTENT_EXCEPTION_URI =
1647                Uri.parse("content://" + AUTHORITY + "/exception");
1648
1649        /**
1650         * This utility class cannot be instantiated
1651         */
1652        private Events() {}
1653
1654        /**
1655         * The default sort order for this table
1656         */
1657        private static final String DEFAULT_SORT_ORDER = "";
1658
1659        /**
1660         * These are columns that should only ever be updated by the provider,
1661         * either because they are views mapped to another table or because they
1662         * are used for provider only functionality. TODO move to provider
1663         *
1664         * @hide
1665         */
1666        public static String[] PROVIDER_WRITABLE_COLUMNS = new String[] {
1667                ACCOUNT_NAME,
1668                ACCOUNT_TYPE,
1669                CAL_SYNC1,
1670                CAL_SYNC2,
1671                CAL_SYNC3,
1672                CAL_SYNC4,
1673                CAL_SYNC5,
1674                CAL_SYNC6,
1675                CAL_SYNC7,
1676                CAL_SYNC8,
1677                CAL_SYNC9,
1678                CAL_SYNC10,
1679                ALLOWED_REMINDERS,
1680                ALLOWED_ATTENDEE_TYPES,
1681                ALLOWED_AVAILABILITY,
1682                CALENDAR_ACCESS_LEVEL,
1683                CALENDAR_COLOR,
1684                CALENDAR_TIME_ZONE,
1685                CAN_MODIFY_TIME_ZONE,
1686                CAN_ORGANIZER_RESPOND,
1687                CALENDAR_DISPLAY_NAME,
1688                CAN_PARTIALLY_UPDATE,
1689                SYNC_EVENTS,
1690                VISIBLE,
1691        };
1692
1693        /**
1694         * These fields are only writable by a sync adapter. To modify them the
1695         * caller must include CALLER_IS_SYNCADAPTER, _SYNC_ACCOUNT, and
1696         * _SYNC_ACCOUNT_TYPE in the query parameters. TODO move to provider.
1697         *
1698         * @hide
1699         */
1700        public static final String[] SYNC_WRITABLE_COLUMNS = new String[] {
1701            _SYNC_ID,
1702            DIRTY,
1703            MUTATORS,
1704            SYNC_DATA1,
1705            SYNC_DATA2,
1706            SYNC_DATA3,
1707            SYNC_DATA4,
1708            SYNC_DATA5,
1709            SYNC_DATA6,
1710            SYNC_DATA7,
1711            SYNC_DATA8,
1712            SYNC_DATA9,
1713            SYNC_DATA10,
1714        };
1715    }
1716
1717    /**
1718     * Fields and helpers for interacting with Instances. An instance is a
1719     * single occurrence of an event including time zone specific start and end
1720     * days and minutes. The instances table is not writable and only provides a
1721     * way to query event occurrences.
1722     */
1723    public static final class Instances implements BaseColumns, EventsColumns, CalendarColumns {
1724
1725        private static final String WHERE_CALENDARS_SELECTED = Calendars.VISIBLE + "=?";
1726        private static final String[] WHERE_CALENDARS_ARGS = {
1727            "1"
1728        };
1729
1730        /**
1731         * This utility class cannot be instantiated
1732         */
1733        private Instances() {}
1734
1735        /**
1736         * Performs a query to return all visible instances in the given range.
1737         * This is a blocking function and should not be done on the UI thread.
1738         * This will cause an expansion of recurring events to fill this time
1739         * range if they are not already expanded and will slow down for larger
1740         * time ranges with many recurring events.
1741         *
1742         * @param cr The ContentResolver to use for the query
1743         * @param projection The columns to return
1744         * @param begin The start of the time range to query in UTC millis since
1745         *            epoch
1746         * @param end The end of the time range to query in UTC millis since
1747         *            epoch
1748         * @return A Cursor containing all instances in the given range
1749         */
1750        public static final Cursor query(ContentResolver cr, String[] projection,
1751                                         long begin, long end) {
1752            Uri.Builder builder = CONTENT_URI.buildUpon();
1753            ContentUris.appendId(builder, begin);
1754            ContentUris.appendId(builder, end);
1755            return cr.query(builder.build(), projection, WHERE_CALENDARS_SELECTED,
1756                    WHERE_CALENDARS_ARGS, DEFAULT_SORT_ORDER);
1757        }
1758
1759        /**
1760         * Performs a query to return all visible instances in the given range
1761         * that match the given query. This is a blocking function and should
1762         * not be done on the UI thread. This will cause an expansion of
1763         * recurring events to fill this time range if they are not already
1764         * expanded and will slow down for larger time ranges with many
1765         * recurring events.
1766         *
1767         * @param cr The ContentResolver to use for the query
1768         * @param projection The columns to return
1769         * @param begin The start of the time range to query in UTC millis since
1770         *            epoch
1771         * @param end The end of the time range to query in UTC millis since
1772         *            epoch
1773         * @param searchQuery A string of space separated search terms. Segments
1774         *            enclosed by double quotes will be treated as a single
1775         *            term.
1776         * @return A Cursor of instances matching the search terms in the given
1777         *         time range
1778         */
1779        public static final Cursor query(ContentResolver cr, String[] projection,
1780                                         long begin, long end, String searchQuery) {
1781            Uri.Builder builder = CONTENT_SEARCH_URI.buildUpon();
1782            ContentUris.appendId(builder, begin);
1783            ContentUris.appendId(builder, end);
1784            builder = builder.appendPath(searchQuery);
1785            return cr.query(builder.build(), projection, WHERE_CALENDARS_SELECTED,
1786                    WHERE_CALENDARS_ARGS, DEFAULT_SORT_ORDER);
1787        }
1788
1789        /**
1790         * The content:// style URL for querying an instance range. The begin
1791         * and end of the range to query should be added as path segments if
1792         * this is used directly.
1793         */
1794        @SuppressWarnings("hiding")
1795        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
1796                "/instances/when");
1797        /**
1798         * The content:// style URL for querying an instance range by Julian
1799         * Day. The start and end day should be added as path segments if this
1800         * is used directly.
1801         */
1802        public static final Uri CONTENT_BY_DAY_URI =
1803            Uri.parse("content://" + AUTHORITY + "/instances/whenbyday");
1804        /**
1805         * The content:// style URL for querying an instance range with a search
1806         * term. The begin, end, and search string should be appended as path
1807         * segments if this is used directly.
1808         */
1809        public static final Uri CONTENT_SEARCH_URI = Uri.parse("content://" + AUTHORITY +
1810                "/instances/search");
1811        /**
1812         * The content:// style URL for querying an instance range with a search
1813         * term. The start day, end day, and search string should be appended as
1814         * path segments if this is used directly.
1815         */
1816        public static final Uri CONTENT_SEARCH_BY_DAY_URI =
1817            Uri.parse("content://" + AUTHORITY + "/instances/searchbyday");
1818
1819        /**
1820         * The default sort order for this table.
1821         */
1822        private static final String DEFAULT_SORT_ORDER = "begin ASC";
1823
1824        /**
1825         * The beginning time of the instance, in UTC milliseconds. Column name.
1826         * <P>Type: INTEGER (long; millis since epoch)</P>
1827         */
1828        public static final String BEGIN = "begin";
1829
1830        /**
1831         * The ending time of the instance, in UTC milliseconds. Column name.
1832         * <P>Type: INTEGER (long; millis since epoch)</P>
1833         */
1834        public static final String END = "end";
1835
1836        /**
1837         * The _id of the event for this instance. Column name.
1838         * <P>Type: INTEGER (long, foreign key to the Events table)</P>
1839         */
1840        public static final String EVENT_ID = "event_id";
1841
1842        /**
1843         * The Julian start day of the instance, relative to the local time
1844         * zone. Column name.
1845         * <P>Type: INTEGER (int)</P>
1846         */
1847        public static final String START_DAY = "startDay";
1848
1849        /**
1850         * The Julian end day of the instance, relative to the local time
1851         * zone. Column name.
1852         * <P>Type: INTEGER (int)</P>
1853         */
1854        public static final String END_DAY = "endDay";
1855
1856        /**
1857         * The start minute of the instance measured from midnight in the
1858         * local time zone. Column name.
1859         * <P>Type: INTEGER (int)</P>
1860         */
1861        public static final String START_MINUTE = "startMinute";
1862
1863        /**
1864         * The end minute of the instance measured from midnight in the
1865         * local time zone. Column name.
1866         * <P>Type: INTEGER (int)</P>
1867         */
1868        public static final String END_MINUTE = "endMinute";
1869    }
1870
1871    protected interface CalendarCacheColumns {
1872        /**
1873         * The key for the setting. Keys are defined in {@link CalendarCache}.
1874         */
1875        public static final String KEY = "key";
1876
1877        /**
1878         * The value of the given setting.
1879         */
1880        public static final String VALUE = "value";
1881    }
1882
1883    /**
1884     * CalendarCache stores some settings for calendar including the current
1885     * time zone for the instances. These settings are stored using a key/value
1886     * scheme. A {@link #KEY} must be specified when updating these values.
1887     */
1888    public static final class CalendarCache implements CalendarCacheColumns {
1889        /**
1890         * The URI to use for retrieving the properties from the Calendar db.
1891         */
1892        public static final Uri URI =
1893                Uri.parse("content://" + AUTHORITY + "/properties");
1894
1895        /**
1896         * This utility class cannot be instantiated
1897         */
1898        private CalendarCache() {}
1899
1900        /**
1901         * They key for updating the use of auto/home time zones in Calendar.
1902         * Valid values are {@link #TIMEZONE_TYPE_AUTO} or
1903         * {@link #TIMEZONE_TYPE_HOME}.
1904         */
1905        public static final String KEY_TIMEZONE_TYPE = "timezoneType";
1906
1907        /**
1908         * The key for updating the time zone used by the provider when it
1909         * generates the instances table. This should only be written if the
1910         * type is set to {@link #TIMEZONE_TYPE_HOME}. A valid time zone id
1911         * should be written to this field.
1912         */
1913        public static final String KEY_TIMEZONE_INSTANCES = "timezoneInstances";
1914
1915        /**
1916         * The key for reading the last time zone set by the user. This should
1917         * only be read by apps and it will be automatically updated whenever
1918         * {@link #KEY_TIMEZONE_INSTANCES} is updated with
1919         * {@link #TIMEZONE_TYPE_HOME} set.
1920         */
1921        public static final String KEY_TIMEZONE_INSTANCES_PREVIOUS = "timezoneInstancesPrevious";
1922
1923        /**
1924         * The value to write to {@link #KEY_TIMEZONE_TYPE} if the provider
1925         * should stay in sync with the device's time zone.
1926         */
1927        public static final String TIMEZONE_TYPE_AUTO = "auto";
1928
1929        /**
1930         * The value to write to {@link #KEY_TIMEZONE_TYPE} if the provider
1931         * should use a fixed time zone set by the user.
1932         */
1933        public static final String TIMEZONE_TYPE_HOME = "home";
1934    }
1935
1936    /**
1937     * A few Calendar globals are needed in the CalendarProvider for expanding
1938     * the Instances table and these are all stored in the first (and only) row
1939     * of the CalendarMetaData table.
1940     *
1941     * @hide
1942     */
1943    protected interface CalendarMetaDataColumns {
1944        /**
1945         * The local timezone that was used for precomputing the fields
1946         * in the Instances table.
1947         */
1948        public static final String LOCAL_TIMEZONE = "localTimezone";
1949
1950        /**
1951         * The minimum time used in expanding the Instances table,
1952         * in UTC milliseconds.
1953         * <P>Type: INTEGER</P>
1954         */
1955        public static final String MIN_INSTANCE = "minInstance";
1956
1957        /**
1958         * The maximum time used in expanding the Instances table,
1959         * in UTC milliseconds.
1960         * <P>Type: INTEGER</P>
1961         */
1962        public static final String MAX_INSTANCE = "maxInstance";
1963
1964        /**
1965         * The minimum Julian day in the EventDays table.
1966         * <P>Type: INTEGER</P>
1967         */
1968        public static final String MIN_EVENTDAYS = "minEventDays";
1969
1970        /**
1971         * The maximum Julian day in the EventDays table.
1972         * <P>Type: INTEGER</P>
1973         */
1974        public static final String MAX_EVENTDAYS = "maxEventDays";
1975    }
1976
1977    /**
1978     * @hide
1979     */
1980    public static final class CalendarMetaData implements CalendarMetaDataColumns, BaseColumns {
1981
1982        /**
1983         * This utility class cannot be instantiated
1984         */
1985        private CalendarMetaData() {}
1986    }
1987
1988    protected interface EventDaysColumns {
1989        /**
1990         * The Julian starting day number. Column name.
1991         * <P>Type: INTEGER (int)</P>
1992         */
1993        public static final String STARTDAY = "startDay";
1994        /**
1995         * The Julian ending day number. Column name.
1996         * <P>Type: INTEGER (int)</P>
1997         */
1998        public static final String ENDDAY = "endDay";
1999
2000    }
2001
2002    /**
2003     * Fields and helpers for querying for a list of days that contain events.
2004     */
2005    public static final class EventDays implements EventDaysColumns {
2006        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY
2007                + "/instances/groupbyday");
2008        private static final String SELECTION = "selected=1";
2009
2010        /**
2011         * This utility class cannot be instantiated
2012         */
2013        private EventDays() {}
2014
2015        /**
2016         * Retrieves the days with events for the Julian days starting at
2017         * "startDay" for "numDays". It returns a cursor containing startday and
2018         * endday representing the max range of days for all events beginning on
2019         * each startday.This is a blocking function and should not be done on
2020         * the UI thread.
2021         *
2022         * @param cr the ContentResolver
2023         * @param startDay the first Julian day in the range
2024         * @param numDays the number of days to load (must be at least 1)
2025         * @param projection the columns to return in the cursor
2026         * @return a database cursor containing a list of start and end days for
2027         *         events
2028         */
2029        public static final Cursor query(ContentResolver cr, int startDay, int numDays,
2030                String[] projection) {
2031            if (numDays < 1) {
2032                return null;
2033            }
2034            int endDay = startDay + numDays - 1;
2035            Uri.Builder builder = CONTENT_URI.buildUpon();
2036            ContentUris.appendId(builder, startDay);
2037            ContentUris.appendId(builder, endDay);
2038            return cr.query(builder.build(), projection, SELECTION,
2039                    null /* selection args */, STARTDAY);
2040        }
2041    }
2042
2043    protected interface RemindersColumns {
2044        /**
2045         * The event the reminder belongs to. Column name.
2046         * <P>Type: INTEGER (foreign key to the Events table)</P>
2047         */
2048        public static final String EVENT_ID = "event_id";
2049
2050        /**
2051         * The minutes prior to the event that the alarm should ring.  -1
2052         * specifies that we should use the default value for the system.
2053         * Column name.
2054         * <P>Type: INTEGER</P>
2055         */
2056        public static final String MINUTES = "minutes";
2057
2058        /**
2059         * Passing this as a minutes value will use the default reminder
2060         * minutes.
2061         */
2062        public static final int MINUTES_DEFAULT = -1;
2063
2064        /**
2065         * The alarm method, as set on the server. {@link #METHOD_DEFAULT},
2066         * {@link #METHOD_ALERT}, {@link #METHOD_EMAIL}, {@link #METHOD_SMS} and
2067         * {@link #METHOD_ALARM} are possible values; the device will only
2068         * process {@link #METHOD_DEFAULT} and {@link #METHOD_ALERT} reminders
2069         * (the other types are simply stored so we can send the same reminder
2070         * info back to the server when we make changes).
2071         */
2072        public static final String METHOD = "method";
2073
2074        public static final int METHOD_DEFAULT = 0;
2075        public static final int METHOD_ALERT = 1;
2076        public static final int METHOD_EMAIL = 2;
2077        public static final int METHOD_SMS = 3;
2078        public static final int METHOD_ALARM = 4;
2079    }
2080
2081    /**
2082     * Fields and helpers for accessing reminders for an event. Each row of this
2083     * table represents a single reminder for an event. Calling
2084     * {@link #query(ContentResolver, long, String[])} will return a list of reminders for
2085     * the event with the given eventId. Both apps and sync adapters may write
2086     * to this table. There are three writable fields and all of them must be
2087     * included when inserting a new reminder. They are:
2088     * <ul>
2089     * <li>{@link #EVENT_ID}</li>
2090     * <li>{@link #MINUTES}</li>
2091     * <li>{@link #METHOD}</li>
2092     * </ul>
2093     */
2094    public static final class Reminders implements BaseColumns, RemindersColumns, EventsColumns {
2095        private static final String REMINDERS_WHERE = CalendarContract.Reminders.EVENT_ID + "=?";
2096        @SuppressWarnings("hiding")
2097        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/reminders");
2098
2099        /**
2100         * This utility class cannot be instantiated
2101         */
2102        private Reminders() {}
2103
2104        /**
2105         * Queries all reminders associated with the given event. This is a
2106         * blocking call and should not be done on the UI thread.
2107         *
2108         * @param cr The content resolver to use for the query
2109         * @param eventId The id of the event to retrieve reminders for
2110         * @param projection the columns to return in the cursor
2111         * @return A Cursor containing all reminders for the event
2112         */
2113        public static final Cursor query(ContentResolver cr, long eventId, String[] projection) {
2114            String[] remArgs = {Long.toString(eventId)};
2115            return cr.query(CONTENT_URI, projection, REMINDERS_WHERE, remArgs /*selection args*/,
2116                    null /* sort order */);
2117        }
2118    }
2119
2120    protected interface CalendarAlertsColumns {
2121        /**
2122         * The event that the alert belongs to. Column name.
2123         * <P>Type: INTEGER (foreign key to the Events table)</P>
2124         */
2125        public static final String EVENT_ID = "event_id";
2126
2127        /**
2128         * The start time of the event, in UTC. Column name.
2129         * <P>Type: INTEGER (long; millis since epoch)</P>
2130         */
2131        public static final String BEGIN = "begin";
2132
2133        /**
2134         * The end time of the event, in UTC. Column name.
2135         * <P>Type: INTEGER (long; millis since epoch)</P>
2136         */
2137        public static final String END = "end";
2138
2139        /**
2140         * The alarm time of the event, in UTC. Column name.
2141         * <P>Type: INTEGER (long; millis since epoch)</P>
2142         */
2143        public static final String ALARM_TIME = "alarmTime";
2144
2145        /**
2146         * The creation time of this database entry, in UTC.
2147         * Useful for debugging missed reminders. Column name.
2148         * <P>Type: INTEGER (long; millis since epoch)</P>
2149         */
2150        public static final String CREATION_TIME = "creationTime";
2151
2152        /**
2153         * The time that the alarm broadcast was received by the Calendar app,
2154         * in UTC. Useful for debugging missed reminders. Column name.
2155         * <P>Type: INTEGER (long; millis since epoch)</P>
2156         */
2157        public static final String RECEIVED_TIME = "receivedTime";
2158
2159        /**
2160         * The time that the notification was created by the Calendar app,
2161         * in UTC. Useful for debugging missed reminders. Column name.
2162         * <P>Type: INTEGER (long; millis since epoch)</P>
2163         */
2164        public static final String NOTIFY_TIME = "notifyTime";
2165
2166        /**
2167         * The state of this alert. It starts out as {@link #STATE_SCHEDULED}, then
2168         * when the alarm goes off, it changes to {@link #STATE_FIRED}, and then when
2169         * the user dismisses the alarm it changes to {@link #STATE_DISMISSED}. Column
2170         * name.
2171         * <P>Type: INTEGER</P>
2172         */
2173        public static final String STATE = "state";
2174
2175        /**
2176         * An alert begins in this state when it is first created.
2177         */
2178        public static final int STATE_SCHEDULED = 0;
2179        /**
2180         * After a notification for an alert has been created it should be
2181         * updated to fired.
2182         */
2183        public static final int STATE_FIRED = 1;
2184        /**
2185         * Once the user has dismissed the notification the alert's state should
2186         * be set to dismissed so it is not fired again.
2187         */
2188        public static final int STATE_DISMISSED = 2;
2189
2190        /**
2191         * The number of minutes that this alarm precedes the start time. Column
2192         * name.
2193         * <P>Type: INTEGER</P>
2194         */
2195        public static final String MINUTES = "minutes";
2196
2197        /**
2198         * The default sort order for this alerts queries
2199         */
2200        public static final String DEFAULT_SORT_ORDER = "begin ASC,title ASC";
2201    }
2202
2203    /**
2204     * Fields and helpers for accessing calendar alerts information. These
2205     * fields are for tracking which alerts have been fired. Scheduled alarms
2206     * will generate an intent using {@link #ACTION_EVENT_REMINDER}. Apps that
2207     * receive this action may update the {@link #STATE} for the reminder when
2208     * they have finished handling it. Apps that have their notifications
2209     * disabled should not modify the table to ensure that they do not conflict
2210     * with another app that is generating a notification. In general, apps
2211     * should not need to write to this table directly except to update the
2212     * state of a reminder.
2213     */
2214    public static final class CalendarAlerts implements BaseColumns,
2215            CalendarAlertsColumns, EventsColumns, CalendarColumns {
2216
2217        /**
2218         * @hide
2219         */
2220        public static final String TABLE_NAME = "CalendarAlerts";
2221        /**
2222         * The Uri for querying calendar alert information
2223         */
2224        @SuppressWarnings("hiding")
2225        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
2226                "/calendar_alerts");
2227
2228        /**
2229         * This utility class cannot be instantiated
2230         */
2231        private CalendarAlerts() {}
2232
2233        private static final String WHERE_ALARM_EXISTS = EVENT_ID + "=?"
2234                + " AND " + BEGIN + "=?"
2235                + " AND " + ALARM_TIME + "=?";
2236
2237        private static final String WHERE_FINDNEXTALARMTIME = ALARM_TIME + ">=?";
2238        private static final String SORT_ORDER_ALARMTIME_ASC = ALARM_TIME + " ASC";
2239
2240        private static final String WHERE_RESCHEDULE_MISSED_ALARMS = STATE + "=" + STATE_SCHEDULED
2241                + " AND " + ALARM_TIME + "<?"
2242                + " AND " + ALARM_TIME + ">?"
2243                + " AND " + END + ">=?";
2244
2245        /**
2246         * This URI is for grouping the query results by event_id and begin
2247         * time.  This will return one result per instance of an event.  So
2248         * events with multiple alarms will appear just once, but multiple
2249         * instances of a repeating event will show up multiple times.
2250         */
2251        public static final Uri CONTENT_URI_BY_INSTANCE =
2252            Uri.parse("content://" + AUTHORITY + "/calendar_alerts/by_instance");
2253
2254        private static final boolean DEBUG = false;
2255
2256        /**
2257         * Helper for inserting an alarm time associated with an event TODO move
2258         * to Provider
2259         *
2260         * @hide
2261         */
2262        public static final Uri insert(ContentResolver cr, long eventId,
2263                long begin, long end, long alarmTime, int minutes) {
2264            ContentValues values = new ContentValues();
2265            values.put(CalendarAlerts.EVENT_ID, eventId);
2266            values.put(CalendarAlerts.BEGIN, begin);
2267            values.put(CalendarAlerts.END, end);
2268            values.put(CalendarAlerts.ALARM_TIME, alarmTime);
2269            long currentTime = System.currentTimeMillis();
2270            values.put(CalendarAlerts.CREATION_TIME, currentTime);
2271            values.put(CalendarAlerts.RECEIVED_TIME, 0);
2272            values.put(CalendarAlerts.NOTIFY_TIME, 0);
2273            values.put(CalendarAlerts.STATE, STATE_SCHEDULED);
2274            values.put(CalendarAlerts.MINUTES, minutes);
2275            return cr.insert(CONTENT_URI, values);
2276        }
2277
2278        /**
2279         * Finds the next alarm after (or equal to) the given time and returns
2280         * the time of that alarm or -1 if no such alarm exists. This is a
2281         * blocking call and should not be done on the UI thread. TODO move to
2282         * provider
2283         *
2284         * @param cr the ContentResolver
2285         * @param millis the time in UTC milliseconds
2286         * @return the next alarm time greater than or equal to "millis", or -1
2287         *         if no such alarm exists.
2288         * @hide
2289         */
2290        public static final long findNextAlarmTime(ContentResolver cr, long millis) {
2291            String selection = ALARM_TIME + ">=" + millis;
2292            // TODO: construct an explicit SQL query so that we can add
2293            // "LIMIT 1" to the end and get just one result.
2294            String[] projection = new String[] { ALARM_TIME };
2295            Cursor cursor = cr.query(CONTENT_URI, projection, WHERE_FINDNEXTALARMTIME,
2296                    (new String[] {
2297                        Long.toString(millis)
2298                    }), SORT_ORDER_ALARMTIME_ASC);
2299            long alarmTime = -1;
2300            try {
2301                if (cursor != null && cursor.moveToFirst()) {
2302                    alarmTime = cursor.getLong(0);
2303                }
2304            } finally {
2305                if (cursor != null) {
2306                    cursor.close();
2307                }
2308            }
2309            return alarmTime;
2310        }
2311
2312        /**
2313         * Searches the CalendarAlerts table for alarms that should have fired
2314         * but have not and then reschedules them. This method can be called at
2315         * boot time to restore alarms that may have been lost due to a phone
2316         * reboot. TODO move to provider
2317         *
2318         * @param cr the ContentResolver
2319         * @param context the Context
2320         * @param manager the AlarmManager
2321         * @hide
2322         */
2323        public static final void rescheduleMissedAlarms(ContentResolver cr,
2324                Context context, AlarmManager manager) {
2325            // Get all the alerts that have been scheduled but have not fired
2326            // and should have fired by now and are not too old.
2327            long now = System.currentTimeMillis();
2328            long ancient = now - DateUtils.DAY_IN_MILLIS;
2329            String[] projection = new String[] {
2330                    ALARM_TIME,
2331            };
2332
2333            // TODO: construct an explicit SQL query so that we can add
2334            // "GROUPBY" instead of doing a sort and de-dup
2335            Cursor cursor = cr.query(CalendarAlerts.CONTENT_URI, projection,
2336                    WHERE_RESCHEDULE_MISSED_ALARMS, (new String[] {
2337                            Long.toString(now), Long.toString(ancient), Long.toString(now)
2338                    }), SORT_ORDER_ALARMTIME_ASC);
2339            if (cursor == null) {
2340                return;
2341            }
2342
2343            if (DEBUG) {
2344                Log.d(TAG, "missed alarms found: " + cursor.getCount());
2345            }
2346
2347            try {
2348                long alarmTime = -1;
2349
2350                while (cursor.moveToNext()) {
2351                    long newAlarmTime = cursor.getLong(0);
2352                    if (alarmTime != newAlarmTime) {
2353                        if (DEBUG) {
2354                            Log.w(TAG, "rescheduling missed alarm. alarmTime: " + newAlarmTime);
2355                        }
2356                        scheduleAlarm(context, manager, newAlarmTime);
2357                        alarmTime = newAlarmTime;
2358                    }
2359                }
2360            } finally {
2361                cursor.close();
2362            }
2363        }
2364
2365        /**
2366         * Schedules an alarm intent with the system AlarmManager that will
2367         * notify listeners when a reminder should be fired. The provider will
2368         * keep scheduled reminders up to date but apps may use this to
2369         * implement snooze functionality without modifying the reminders table.
2370         * Scheduled alarms will generate an intent using
2371         * {@link #ACTION_EVENT_REMINDER}. TODO Move to provider
2372         *
2373         * @param context A context for referencing system resources
2374         * @param manager The AlarmManager to use or null
2375         * @param alarmTime The time to fire the intent in UTC millis since
2376         *            epoch
2377         * @hide
2378         */
2379        public static void scheduleAlarm(Context context, AlarmManager manager, long alarmTime) {
2380            if (DEBUG) {
2381                Time time = new Time();
2382                time.set(alarmTime);
2383                String schedTime = time.format(" %a, %b %d, %Y %I:%M%P");
2384                Log.d(TAG, "Schedule alarm at " + alarmTime + " " + schedTime);
2385            }
2386
2387            if (manager == null) {
2388                manager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
2389            }
2390
2391            Intent intent = new Intent(ACTION_EVENT_REMINDER);
2392            intent.setData(ContentUris.withAppendedId(CalendarContract.CONTENT_URI, alarmTime));
2393            intent.putExtra(ALARM_TIME, alarmTime);
2394            PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0);
2395            manager.set(AlarmManager.RTC_WAKEUP, alarmTime, pi);
2396        }
2397
2398        /**
2399         * Searches for an entry in the CalendarAlerts table that matches the
2400         * given event id, begin time and alarm time. If one is found then this
2401         * alarm already exists and this method returns true. TODO Move to
2402         * provider
2403         *
2404         * @param cr the ContentResolver
2405         * @param eventId the event id to match
2406         * @param begin the start time of the event in UTC millis
2407         * @param alarmTime the alarm time of the event in UTC millis
2408         * @return true if there is already an alarm for the given event with
2409         *         the same start time and alarm time.
2410         * @hide
2411         */
2412        public static final boolean alarmExists(ContentResolver cr, long eventId,
2413                long begin, long alarmTime) {
2414            // TODO: construct an explicit SQL query so that we can add
2415            // "LIMIT 1" to the end and get just one result.
2416            String[] projection = new String[] { ALARM_TIME };
2417            Cursor cursor = cr.query(CONTENT_URI, projection, WHERE_ALARM_EXISTS,
2418                    (new String[] {
2419                            Long.toString(eventId), Long.toString(begin), Long.toString(alarmTime)
2420                    }), null);
2421            boolean found = false;
2422            try {
2423                if (cursor != null && cursor.getCount() > 0) {
2424                    found = true;
2425                }
2426            } finally {
2427                if (cursor != null) {
2428                    cursor.close();
2429                }
2430            }
2431            return found;
2432        }
2433    }
2434
2435    protected interface ColorsColumns extends SyncStateContract.Columns {
2436
2437        /**
2438         * The type of color, which describes how it should be used. Valid types
2439         * are {@link #TYPE_CALENDAR} and {@link #TYPE_EVENT}. Column name.
2440         * <P>
2441         * Type: INTEGER (NOT NULL)
2442         * </P>
2443         */
2444        public static final String COLOR_TYPE = "color_type";
2445
2446        /**
2447         * This indicateds a color that can be used for calendars.
2448         */
2449        public static final int TYPE_CALENDAR = 0;
2450        /**
2451         * This indicates a color that can be used for events.
2452         */
2453        public static final int TYPE_EVENT = 1;
2454
2455        /**
2456         * The key used to reference this color. This can be any non-empty
2457         * string, but must be unique for a given {@link #ACCOUNT_TYPE} and
2458         * {@link #ACCOUNT_NAME}. Column name.
2459         * <P>
2460         * Type: TEXT
2461         * </P>
2462         */
2463        public static final String COLOR_KEY = "color_index";
2464
2465        /**
2466         * The color as an 8-bit ARGB integer value. Colors should specify alpha
2467         * as fully opaque (eg 0xFF993322) as the alpha may be ignored or
2468         * modified for display. It is reccomended that colors be usable with
2469         * light (near white) text. Apps should not depend on that assumption,
2470         * however. Column name.
2471         * <P>
2472         * Type: INTEGER (NOT NULL)
2473         * </P>
2474         */
2475        public static final String COLOR = "color";
2476
2477    }
2478
2479    /**
2480     * Fields for accessing colors available for a given account. Colors are
2481     * referenced by {@link #COLOR_KEY} which must be unique for a given
2482     * account name/type. These values can only be updated by the sync
2483     * adapter. Only {@link #COLOR} may be updated after the initial insert. In
2484     * addition, a row can only be deleted once all references to that color
2485     * have been removed from the {@link Calendars} or {@link Events} tables.
2486     */
2487    public static final class Colors implements ColorsColumns {
2488        /**
2489         * @hide
2490         */
2491        public static final String TABLE_NAME = "Colors";
2492        /**
2493         * The Uri for querying color information
2494         */
2495        @SuppressWarnings("hiding")
2496        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/colors");
2497
2498        /**
2499         * This utility class cannot be instantiated
2500         */
2501        private Colors() {
2502        }
2503    }
2504
2505    protected interface ExtendedPropertiesColumns {
2506        /**
2507         * The event the extended property belongs to. Column name.
2508         * <P>Type: INTEGER (foreign key to the Events table)</P>
2509         */
2510        public static final String EVENT_ID = "event_id";
2511
2512        /**
2513         * The name of the extended property.  This is a uri of the form
2514         * {scheme}#{local-name} convention. Column name.
2515         * <P>Type: TEXT</P>
2516         */
2517        public static final String NAME = "name";
2518
2519        /**
2520         * The value of the extended property. Column name.
2521         * <P>Type: TEXT</P>
2522         */
2523        public static final String VALUE = "value";
2524    }
2525
2526    /**
2527     * Fields for accessing the Extended Properties. This is a generic set of
2528     * name/value pairs for use by sync adapters to add extra
2529     * information to events. There are three writable columns and all three
2530     * must be present when inserting a new value. They are:
2531     * <ul>
2532     * <li>{@link #EVENT_ID}</li>
2533     * <li>{@link #NAME}</li>
2534     * <li>{@link #VALUE}</li>
2535     * </ul>
2536     */
2537   public static final class ExtendedProperties implements BaseColumns,
2538            ExtendedPropertiesColumns, EventsColumns {
2539        public static final Uri CONTENT_URI =
2540                Uri.parse("content://" + AUTHORITY + "/extendedproperties");
2541
2542        /**
2543         * This utility class cannot be instantiated
2544         */
2545        private ExtendedProperties() {}
2546
2547        // TODO: fill out this class when we actually start utilizing extendedproperties
2548        // in the calendar application.
2549   }
2550
2551    /**
2552     * A table provided for sync adapters to use for storing private sync state data.
2553     *
2554     * @see SyncStateContract
2555     */
2556    public static final class SyncState implements SyncStateContract.Columns {
2557        /**
2558         * This utility class cannot be instantiated
2559         */
2560        private SyncState() {}
2561
2562        private static final String CONTENT_DIRECTORY =
2563                SyncStateContract.Constants.CONTENT_DIRECTORY;
2564
2565        /**
2566         * The content:// style URI for this table
2567         */
2568        public static final Uri CONTENT_URI =
2569                Uri.withAppendedPath(CalendarContract.CONTENT_URI, CONTENT_DIRECTORY);
2570    }
2571
2572    /**
2573     * Columns from the EventsRawTimes table
2574     *
2575     * @hide
2576     */
2577    protected interface EventsRawTimesColumns {
2578        /**
2579         * The corresponding event id. Column name.
2580         * <P>Type: INTEGER (long)</P>
2581         */
2582        public static final String EVENT_ID = "event_id";
2583
2584        /**
2585         * The RFC2445 compliant time the event starts. Column name.
2586         * <P>Type: TEXT</P>
2587         */
2588        public static final String DTSTART_2445 = "dtstart2445";
2589
2590        /**
2591         * The RFC2445 compliant time the event ends. Column name.
2592         * <P>Type: TEXT</P>
2593         */
2594        public static final String DTEND_2445 = "dtend2445";
2595
2596        /**
2597         * The RFC2445 compliant original instance time of the recurring event
2598         * for which this event is an exception. Column name.
2599         * <P>Type: TEXT</P>
2600         */
2601        public static final String ORIGINAL_INSTANCE_TIME_2445 = "originalInstanceTime2445";
2602
2603        /**
2604         * The RFC2445 compliant last date this event repeats on, or NULL if it
2605         * never ends. Column name.
2606         * <P>Type: TEXT</P>
2607         */
2608        public static final String LAST_DATE_2445 = "lastDate2445";
2609    }
2610
2611    /**
2612     * @hide
2613     */
2614    public static final class EventsRawTimes implements BaseColumns, EventsRawTimesColumns {
2615
2616        /**
2617         * This utility class cannot be instantiated
2618         */
2619        private EventsRawTimes() {}
2620    }
2621}
2622