CalendarContract.java revision 4172d95a6726efd5f03517e1a2a6fbbe879f1d74
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.AlarmManager;
23import android.app.PendingIntent;
24import android.content.ContentProviderClient;
25import android.content.ContentResolver;
26import android.content.ContentUris;
27import android.content.ContentValues;
28import android.content.Context;
29import android.content.CursorEntityIterator;
30import android.content.Entity;
31import android.content.EntityIterator;
32import android.content.Intent;
33import android.database.Cursor;
34import android.database.DatabaseUtils;
35import android.net.Uri;
36import android.os.RemoteException;
37import android.text.format.DateUtils;
38import android.text.format.Time;
39import android.util.Log;
40
41/**
42 * <p>
43 * The contract between the calendar provider and applications. Contains
44 * definitions for the supported URIs and data columns.
45 * </p>
46 * <h3>Overview</h3>
47 * <p>
48 * CalendarContract defines the data model of calendar and event related
49 * information. This data is stored in a number of tables:
50 * </p>
51 * <ul>
52 * <li>The {@link Calendars} table holds the calendar specific information. Each
53 * row in this table contains the details for a single calendar, such as the
54 * name, color, sync info, etc.</li>
55 * <li>The {@link Events} table holds the event specific information. Each row
56 * in this table has the info for a single event. It contains information such
57 * as event title, location, start time, end time, etc. The event can occur
58 * one-time or can recur multiple times. Attendees, reminders, and extended
59 * properties are stored on separate tables and reference the {@link Events#_ID}
60 * to link them with the event.</li>
61 * <li>The {@link Instances} table holds the start and end time for occurrences
62 * of an event. Each row in this table represents a single occurrence. For
63 * one-time events there will be a 1:1 mapping of instances to events. For
64 * recurring events, multiple rows will automatically be generated which
65 * correspond to multiple occurrences of that event.</li>
66 * <li>The {@link Attendees} table holds the event attendee or guest
67 * information. Each row represents a single guest of an event. It specifies the
68 * type of guest they are and their attendance response for the event.</li>
69 * <li>The {@link Reminders} table holds the alert/notification data. Each row
70 * represents a single alert for an event. An event can have multiple reminders.
71 * The number of reminders per event is specified in
72 * {@link Calendars#MAX_REMINDERS} which is set by the Sync Adapter that owns
73 * the given calendar. Reminders are specified in minutes before the event and
74 * have a type.</li>
75 * <li>The {@link ExtendedProperties} table holds opaque data fields used by the
76 * sync adapter. The provider takes no action with items in this table except to
77 * delete them when their related events are deleted.</li>
78 * </ul>
79 * <p>
80 * Other tables include:
81 * </p>
82 * <ul>
83 * <li>
84 * {@link SyncState}, which contains free-form data maintained by the sync
85 * adapters</li>
86 * </ul>
87 *
88 */
89public final class CalendarContract {
90    private static final String TAG = "Calendar";
91
92    /**
93     * Broadcast Action: This is the intent that gets fired when an alarm
94     * notification needs to be posted for a reminder.
95     *
96     */
97    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
98    public static final String ACTION_EVENT_REMINDER = "android.intent.action.EVENT_REMINDER";
99
100    /**
101     * Intent Extras key: The start time of an event or an instance of a
102     * recurring event. (milliseconds since epoch)
103     */
104    public static final String EXTRA_EVENT_BEGIN_TIME = "beginTime";
105
106    /**
107     * Intent Extras key: The end time of an event or an instance of a recurring
108     * event. (milliseconds since epoch)
109     */
110    public static final String EXTRA_EVENT_END_TIME = "endTime";
111
112    /**
113     * Intent Extras key: When creating an event, set this to true to create an
114     * all-day event by default
115     */
116    public static final String EXTRA_EVENT_ALL_DAY = "allDay";
117
118    /**
119     * This authority is used for writing to or querying from the calendar
120     * provider. Note: This is set at first run and cannot be changed without
121     * breaking apps that access the provider.
122     */
123    public static final String AUTHORITY = "com.android.calendar";
124
125    /**
126     * The content:// style URL for the top-level calendar authority
127     */
128    public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY);
129
130    /**
131     * An optional insert, update or delete URI parameter that allows the caller
132     * to specify that it is a sync adapter. The default value is false. If set
133     * to true, the modified row is not marked as "dirty" (needs to be synced)
134     * and when the provider calls
135     * {@link ContentResolver#notifyChange(android.net.Uri, android.database.ContentObserver, boolean)}
136     * , the third parameter "syncToNetwork" is set to false. Furthermore, if
137     * set to true, the caller must also include
138     * {@link Calendars#ACCOUNT_NAME} and {@link Calendars#ACCOUNT_TYPE} as
139     * query parameters.
140     *
141     * @see Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)
142     */
143    public static final String CALLER_IS_SYNCADAPTER = "caller_is_syncadapter";
144
145    /**
146     * A special account type for calendars not associated with any account.
147     * Normally calendars that do not match an account on the device will be
148     * removed. Setting the account_type on a calendar to this will prevent it
149     * from being wiped if it does not match an existing account.
150     *
151     * @see SyncColumns#ACCOUNT_TYPE
152     */
153    public static final String ACCOUNT_TYPE_LOCAL = "LOCAL";
154
155    /**
156     * This utility class cannot be instantiated
157     */
158    private CalendarContract() {}
159
160    /**
161     * Generic columns for use by sync adapters. The specific functions of these
162     * columns are private to the sync adapter. Other clients of the API should
163     * not attempt to either read or write this column. These columns are
164     * editable as part of the Calendars Uri, but can only be read if accessed
165     * through any other Uri.
166     */
167    protected interface CalendarSyncColumns {
168
169
170        /**
171         * Generic column for use by sync adapters. Column name.
172         * <P>Type: TEXT</P>
173         */
174        public static final String CAL_SYNC1 = "cal_sync1";
175
176        /**
177         * Generic column for use by sync adapters. Column name.
178         * <P>Type: TEXT</P>
179         */
180        public static final String CAL_SYNC2 = "cal_sync2";
181
182        /**
183         * Generic column for use by sync adapters. Column name.
184         * <P>Type: TEXT</P>
185         */
186        public static final String CAL_SYNC3 = "cal_sync3";
187
188        /**
189         * Generic column for use by sync adapters. Column name.
190         * <P>Type: TEXT</P>
191         */
192        public static final String CAL_SYNC4 = "cal_sync4";
193
194        /**
195         * Generic column for use by sync adapters. Column name.
196         * <P>Type: TEXT</P>
197         */
198        public static final String CAL_SYNC5 = "cal_sync5";
199
200        /**
201         * Generic column for use by sync adapters. Column name.
202         * <P>Type: TEXT</P>
203         */
204        public static final String CAL_SYNC6 = "cal_sync6";
205
206        /**
207         * Generic column for use by sync adapters. Column name.
208         * <P>Type: TEXT</P>
209         */
210        public static final String CAL_SYNC7 = "cal_sync7";
211
212        /**
213         * Generic column for use by sync adapters. Column name.
214         * <P>Type: TEXT</P>
215         */
216        public static final String CAL_SYNC8 = "cal_sync8";
217
218        /**
219         * Generic column for use by sync adapters. Column name.
220         * <P>Type: TEXT</P>
221         */
222        public static final String CAL_SYNC9 = "cal_sync9";
223
224        /**
225         * Generic column for use by sync adapters. Column name.
226         * <P>Type: TEXT</P>
227         */
228        public static final String CAL_SYNC10 = "cal_sync10";
229    }
230
231    /**
232     * Columns for Sync information used by Calendars and Events tables. These
233     * have specific uses which are expected to be consistent by the app and
234     * sync adapter.
235     *
236     */
237    protected interface SyncColumns extends CalendarSyncColumns {
238        /**
239         * The account that was used to sync the entry to the device. If the
240         * account_type is not {@link #ACCOUNT_TYPE_LOCAL} then the name and
241         * type must match an account on the device or the calendar will be
242         * deleted.
243         * <P>Type: TEXT</P>
244         */
245        public static final String ACCOUNT_NAME = "account_name";
246
247        /**
248         * The type of the account that was used to sync the entry to the
249         * device. A type of {@link #ACCOUNT_TYPE_LOCAL} will keep this event
250         * form being deleted if there are no matching accounts on the device.
251         * <P>Type: TEXT</P>
252         */
253        public static final String ACCOUNT_TYPE = "account_type";
254
255        /**
256         * The unique ID for a row assigned by the sync source. NULL if the row
257         * has never been synced. This is used as a reference id for exceptions
258         * along with {@link BaseColumns#_ID}.
259         * <P>Type: TEXT</P>
260         */
261        public static final String _SYNC_ID = "_sync_id";
262
263        /**
264         * Used to indicate that local, unsynced, changes are present.
265         * <P>Type: INTEGER (long)</P>
266         */
267        public static final String DIRTY = "dirty";
268
269        /**
270         * Whether the row has been deleted but not synced to the server. A
271         * deleted row should be ignored.
272         * <P>
273         * Type: INTEGER (boolean)
274         * </P>
275         */
276        public static final String DELETED = "deleted";
277
278        /**
279         * If set to 1 this causes events on this calendar to be duplicated with
280         * {@link Events#LAST_SYNCED} set to 1 whenever the event
281         * transitions from non-dirty to dirty. The duplicated event will not be
282         * expanded in the instances table and will only show up in sync adapter
283         * queries of the events table. It will also be deleted when the
284         * originating event has its dirty flag cleared by the sync adapter.
285         * <P>Type: INTEGER (boolean)</P>
286         */
287        public static final String CAN_PARTIALLY_UPDATE = "canPartiallyUpdate";
288    }
289
290    /**
291     * Columns specific to the Calendars Uri that other Uris can query.
292     */
293    protected interface CalendarColumns {
294        /**
295         * The color of the calendar. This should only be updated by the sync
296         * adapter, not other apps, as changing a calendar's color can adversely
297         * affect its display.
298         * <P>Type: INTEGER (color value)</P>
299         */
300        public static final String CALENDAR_COLOR = "calendar_color";
301
302        /**
303         * A key for looking up a color from the {@link Colors} table. NULL or
304         * an empty string are reserved for indicating that the calendar does
305         * not use a key for looking up the color. The provider will update
306         * {@link #CALENDAR_COLOR} automatically when a valid key is written to
307         * this column. The key must reference an existing row of the
308         * {@link Colors} table. @see Colors
309         * <P>
310         * Type: TEXT
311         * </P>
312         */
313        public static final String CALENDAR_COLOR_KEY = "calendar_color_index";
314
315        /**
316         * The display name of the calendar. Column name.
317         * <P>
318         * Type: TEXT
319         * </P>
320         */
321        public static final String CALENDAR_DISPLAY_NAME = "calendar_displayName";
322
323        /**
324         * The level of access that the user has for the calendar
325         * <P>Type: INTEGER (one of the values below)</P>
326         */
327        public static final String CALENDAR_ACCESS_LEVEL = "calendar_access_level";
328
329        /** Cannot access the calendar */
330        public static final int CAL_ACCESS_NONE = 0;
331        /** Can only see free/busy information about the calendar */
332        public static final int CAL_ACCESS_FREEBUSY = 100;
333        /** Can read all event details */
334        public static final int CAL_ACCESS_READ = 200;
335        /** Can reply yes/no/maybe to an event */
336        public static final int CAL_ACCESS_RESPOND = 300;
337        /** not used */
338        public static final int CAL_ACCESS_OVERRIDE = 400;
339        /** Full access to modify the calendar, but not the access control
340         * settings
341         */
342        public static final int CAL_ACCESS_CONTRIBUTOR = 500;
343        /** Full access to modify the calendar, but not the access control
344         * settings
345         */
346        public static final int CAL_ACCESS_EDITOR = 600;
347        /** Full access to the calendar */
348        public static final int CAL_ACCESS_OWNER = 700;
349        /** Domain admin */
350        public static final int CAL_ACCESS_ROOT = 800;
351
352        /**
353         * Is the calendar selected to be displayed?
354         * 0 - do not show events associated with this calendar.
355         * 1 - show events associated with this calendar
356         * <P>Type: INTEGER (boolean)</P>
357         */
358        public static final String VISIBLE = "visible";
359
360        /**
361         * The time zone the calendar is associated with.
362         * <P>Type: TEXT</P>
363         */
364        public static final String CALENDAR_TIME_ZONE = "calendar_timezone";
365
366        /**
367         * Is this calendar synced and are its events stored on the device?
368         * 0 - Do not sync this calendar or store events for this calendar.
369         * 1 - Sync down events for this calendar.
370         * <p>Type: INTEGER (boolean)</p>
371         */
372        public static final String SYNC_EVENTS = "sync_events";
373
374        /**
375         * The owner account for this calendar, based on the calendar feed.
376         * This will be different from the _SYNC_ACCOUNT for delegated calendars.
377         * Column name.
378         * <P>Type: String</P>
379         */
380        public static final String OWNER_ACCOUNT = "ownerAccount";
381
382        /**
383         * Can the organizer respond to the event?  If no, the status of the
384         * organizer should not be shown by the UI.  Defaults to 1. Column name.
385         * <P>Type: INTEGER (boolean)</P>
386         */
387        public static final String CAN_ORGANIZER_RESPOND = "canOrganizerRespond";
388
389        /**
390         * Can the organizer modify the time zone of the event? Column name.
391         * <P>Type: INTEGER (boolean)</P>
392        */
393        public static final String CAN_MODIFY_TIME_ZONE = "canModifyTimeZone";
394
395        /**
396         * The maximum number of reminders allowed for an event. Column name.
397         * <P>Type: INTEGER</P>
398         */
399        public static final String MAX_REMINDERS = "maxReminders";
400
401        /**
402         * A comma separated list of reminder methods supported for this
403         * calendar in the format "#,#,#". Valid types are
404         * {@link Reminders#METHOD_DEFAULT}, {@link Reminders#METHOD_ALERT},
405         * {@link Reminders#METHOD_EMAIL}, {@link Reminders#METHOD_SMS}. Column
406         * name.
407         * <P>Type: TEXT</P>
408         */
409        public static final String ALLOWED_REMINDERS = "allowedReminders";
410
411        /**
412         * A comma separated list of availability types supported for this
413         * calendar in the format "#,#,#". Valid types are
414         * {@link Events#AVAILABILITY_BUSY}, {@link Events#AVAILABILITY_FREE},
415         * {@link Events#AVAILABILITY_TENTATIVE}. Setting this field to only
416         * {@link Events#AVAILABILITY_BUSY} should be used to indicate that
417         * changing the availability is not supported.
418         *
419         */
420        public static final String ALLOWED_AVAILABILITY = "allowedAvailability";
421
422        /**
423         * A comma separated list of attendee types supported for this calendar
424         * in the format "#,#,#". Valid types are {@link Attendees#TYPE_NONE},
425         * {@link Attendees#TYPE_OPTIONAL}, {@link Attendees#TYPE_REQUIRED},
426         * {@link Attendees#TYPE_RESOURCE}. Setting this field to only
427         * {@link Attendees#TYPE_NONE} should be used to indicate that changing
428         * the attendee type is not supported.
429         *
430         */
431        public static final String ALLOWED_ATTENDEE_TYPES = "allowedAttendeeTypes";
432    }
433
434    /**
435     * Class that represents a Calendar Entity. There is one entry per calendar.
436     * This is a helper class to make batch operations easier.
437     */
438    public static final class CalendarEntity implements BaseColumns, SyncColumns, CalendarColumns {
439
440        /**
441         * The default Uri used when creating a new calendar EntityIterator.
442         */
443        @SuppressWarnings("hiding")
444        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
445                "/calendar_entities");
446
447        /**
448         * This utility class cannot be instantiated
449         */
450        private CalendarEntity() {}
451
452        /**
453         * Creates an entity iterator for the given cursor. It assumes the
454         * cursor contains a calendars query.
455         *
456         * @param cursor query on {@link #CONTENT_URI}
457         * @return an EntityIterator of calendars
458         */
459        public static EntityIterator newEntityIterator(Cursor cursor) {
460            return new EntityIteratorImpl(cursor);
461        }
462
463        private static class EntityIteratorImpl extends CursorEntityIterator {
464
465            public EntityIteratorImpl(Cursor cursor) {
466                super(cursor);
467            }
468
469            @Override
470            public Entity getEntityAndIncrementCursor(Cursor cursor) throws RemoteException {
471                // we expect the cursor is already at the row we need to read from
472                final long calendarId = cursor.getLong(cursor.getColumnIndexOrThrow(_ID));
473
474                // Create the content value
475                ContentValues cv = new ContentValues();
476                cv.put(_ID, calendarId);
477
478                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ACCOUNT_NAME);
479                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ACCOUNT_TYPE);
480
481                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, _SYNC_ID);
482                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DIRTY);
483
484                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC1);
485                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC2);
486                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC3);
487                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC4);
488                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC5);
489                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC6);
490                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC7);
491                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC8);
492                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC9);
493                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC10);
494
495                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, Calendars.NAME);
496                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
497                        Calendars.CALENDAR_DISPLAY_NAME);
498                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
499                        Calendars.CALENDAR_COLOR);
500                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, CALENDAR_ACCESS_LEVEL);
501                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, VISIBLE);
502                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, SYNC_EVENTS);
503                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
504                        Calendars.CALENDAR_LOCATION);
505                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CALENDAR_TIME_ZONE);
506                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
507                        Calendars.OWNER_ACCOUNT);
508                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
509                        Calendars.CAN_ORGANIZER_RESPOND);
510                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
511                        Calendars.CAN_MODIFY_TIME_ZONE);
512                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
513                        Calendars.MAX_REMINDERS);
514                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
515                        Calendars.CAN_PARTIALLY_UPDATE);
516                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
517                        Calendars.ALLOWED_REMINDERS);
518
519                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, DELETED);
520
521                // Create the Entity from the ContentValue
522                Entity entity = new Entity(cv);
523
524                // Set cursor to next row
525                cursor.moveToNext();
526
527                // Return the created Entity
528                return entity;
529            }
530        }
531     }
532
533    /**
534     * Constants and helpers for the Calendars table, which contains details for
535     * individual calendars. <h3>Operations</h3> All operations can be done
536     * either as an app or as a sync adapter. To perform an operation as a sync
537     * adapter {@link #CALLER_IS_SYNCADAPTER} should be set to true and
538     * {@link #ACCOUNT_NAME} and {@link #ACCOUNT_TYPE} must be set in the Uri
539     * parameters. See
540     * {@link Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)}
541     * for details on adding parameters. Sync adapters have write access to more
542     * columns but are restricted to a single account at a time. Calendars are
543     * designed to be primarily managed by a sync adapter and inserting new
544     * calendars should be done as a sync adapter. For the most part, apps
545     * should only update calendars (such as changing the color or display
546     * name). If a local calendar is required an app can do so by inserting as a
547     * sync adapter and using an {@link #ACCOUNT_TYPE} of
548     * {@link #ACCOUNT_TYPE_LOCAL} .
549     * <dl>
550     * <dt><b>Insert</b></dt>
551     * <dd>When inserting a new calendar the following fields must be included:
552     * <ul>
553     * <li>{@link #ACCOUNT_NAME}</li>
554     * <li>{@link #ACCOUNT_TYPE}</li>
555     * <li>{@link #NAME}</li>
556     * <li>{@link #CALENDAR_DISPLAY_NAME}</li>
557     * <li>{@link #CALENDAR_COLOR}</li>
558     * <li>{@link #CALENDAR_ACCESS_LEVEL}</li>
559     * <li>{@link #OWNER_ACCOUNT}</li>
560     * </ul>
561     * The following fields are not required when inserting a Calendar but are
562     * generally a good idea to include:
563     * <ul>
564     * <li>{@link #SYNC_EVENTS} set to 1</li>
565     * <li>{@link #CALENDAR_TIME_ZONE}</li>
566     * <li>{@link #ALLOWED_REMINDERS}</li>
567     * <li>{@link #ALLOWED_AVAILABILITY}</li>
568     * <li>{@link #ALLOWED_ATTENDEE_TYPES}</li>
569     * </ul>
570     * <dt><b>Update</b></dt>
571     * <dd>To perform an update on a calendar the {@link #_ID} of the calendar
572     * should be provided either as an appended id to the Uri (
573     * {@link ContentUris#withAppendedId}) or as the first selection item--the
574     * selection should start with "_id=?" and the first selectionArg should be
575     * the _id of the calendar. Calendars may also be updated using a selection
576     * without the id. In general, the {@link #ACCOUNT_NAME} and
577     * {@link #ACCOUNT_TYPE} should not be changed after a calendar is created
578     * as this can cause issues for sync adapters.
579     * <dt><b>Delete</b></dt>
580     * <dd>Calendars can be deleted either by the {@link #_ID} as an appended id
581     * on the Uri or using any standard selection. Deleting a calendar should
582     * generally be handled by a sync adapter as it will remove the calendar
583     * from the database and all associated data (aka events).</dd>
584     * <dt><b>Query</b></dt>
585     * <dd>Querying the Calendars table will get you all information about a set
586     * of calendars. There will be one row returned for each calendar that
587     * matches the query selection, or at most a single row if the {@link #_ID}
588     * is appended to the Uri.</dd>
589     * </dl>
590     * <h3>Calendar Columns</h3> The following Calendar columns are writable by
591     * both an app and a sync adapter.
592     * <ul>
593     * <li>{@link #NAME}</li>
594     * <li>{@link #CALENDAR_DISPLAY_NAME}</li>
595     * <li>{@link #VISIBLE}</li>
596     * <li>{@link #SYNC_EVENTS}</li>
597     * </ul>
598     * The following Calendars columns are writable only by a sync adapter
599     * <ul>
600     * <li>{@link #ACCOUNT_NAME}</li>
601     * <li>{@link #ACCOUNT_TYPE}</li>
602     * <li>{@link #CALENDAR_COLOR}</li>
603     * <li>{@link #_SYNC_ID}</li>
604     * <li>{@link #DIRTY}</li>
605     * <li>{@link #OWNER_ACCOUNT}</li>
606     * <li>{@link #MAX_REMINDERS}</li>
607     * <li>{@link #ALLOWED_REMINDERS}</li>
608     * <li>{@link #ALLOWED_AVAILABILITY}</li>
609     * <li>{@link #ALLOWED_ATTENDEE_TYPES}</li>
610     * <li>{@link #CAN_MODIFY_TIME_ZONE}</li>
611     * <li>{@link #CAN_ORGANIZER_RESPOND}</li>
612     * <li>{@link #CAN_PARTIALLY_UPDATE}</li>
613     * <li>{@link #CALENDAR_LOCATION}</li>
614     * <li>{@link #CALENDAR_TIME_ZONE}</li>
615     * <li>{@link #CALENDAR_ACCESS_LEVEL}</li>
616     * <li>{@link #DELETED}</li>
617     * <li>{@link #CAL_SYNC1}</li>
618     * <li>{@link #CAL_SYNC2}</li>
619     * <li>{@link #CAL_SYNC3}</li>
620     * <li>{@link #CAL_SYNC4}</li>
621     * <li>{@link #CAL_SYNC5}</li>
622     * <li>{@link #CAL_SYNC6}</li>
623     * <li>{@link #CAL_SYNC7}</li>
624     * <li>{@link #CAL_SYNC8}</li>
625     * <li>{@link #CAL_SYNC9}</li>
626     * <li>{@link #CAL_SYNC10}</li>
627     * </ul>
628     */
629    public static final class Calendars implements BaseColumns, SyncColumns, CalendarColumns {
630
631        /**
632         * This utility class cannot be instantiated
633         */
634        private Calendars() {}
635
636        /**
637         * The content:// style URL for accessing Calendars
638         */
639        @SuppressWarnings("hiding")
640        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/calendars");
641
642        /**
643         * The default sort order for this table
644         */
645        public static final String DEFAULT_SORT_ORDER = CALENDAR_DISPLAY_NAME;
646
647        /**
648         * The name of the calendar. Column name.
649         * <P>Type: TEXT</P>
650         */
651        public static final String NAME = "name";
652
653        /**
654         * The default location for the calendar. Column name.
655         * <P>Type: TEXT</P>
656         */
657        public static final String CALENDAR_LOCATION = "calendar_location";
658
659        /**
660         * These fields are only writable by a sync adapter. To modify them the
661         * caller must include {@link #CALLER_IS_SYNCADAPTER},
662         * {@link #ACCOUNT_NAME}, and {@link #ACCOUNT_TYPE} in the Uri's query
663         * parameters. TODO move to provider
664         *
665         * @hide
666         */
667        public static final String[] SYNC_WRITABLE_COLUMNS = new String[] {
668            ACCOUNT_NAME,
669            ACCOUNT_TYPE,
670            _SYNC_ID,
671            DIRTY,
672            OWNER_ACCOUNT,
673            MAX_REMINDERS,
674            ALLOWED_REMINDERS,
675            CAN_MODIFY_TIME_ZONE,
676            CAN_ORGANIZER_RESPOND,
677            CAN_PARTIALLY_UPDATE,
678            CALENDAR_LOCATION,
679            CALENDAR_TIME_ZONE,
680            CALENDAR_ACCESS_LEVEL,
681            DELETED,
682            CAL_SYNC1,
683            CAL_SYNC2,
684            CAL_SYNC3,
685            CAL_SYNC4,
686            CAL_SYNC5,
687            CAL_SYNC6,
688            CAL_SYNC7,
689            CAL_SYNC8,
690            CAL_SYNC9,
691            CAL_SYNC10,
692        };
693    }
694
695    /**
696     * Columns from the Attendees table that other tables join into themselves.
697     */
698    protected interface AttendeesColumns {
699
700        /**
701         * The id of the event. Column name.
702         * <P>Type: INTEGER</P>
703         */
704        public static final String EVENT_ID = "event_id";
705
706        /**
707         * The name of the attendee. Column name.
708         * <P>Type: STRING</P>
709         */
710        public static final String ATTENDEE_NAME = "attendeeName";
711
712        /**
713         * The email address of the attendee. Column name.
714         * <P>Type: STRING</P>
715         */
716        public static final String ATTENDEE_EMAIL = "attendeeEmail";
717
718        /**
719         * The relationship of the attendee to the user. Column name.
720         * <P>Type: INTEGER (one of {@link #RELATIONSHIP_ATTENDEE}, ...}.</P>
721         */
722        public static final String ATTENDEE_RELATIONSHIP = "attendeeRelationship";
723
724        public static final int RELATIONSHIP_NONE = 0;
725        public static final int RELATIONSHIP_ATTENDEE = 1;
726        public static final int RELATIONSHIP_ORGANIZER = 2;
727        public static final int RELATIONSHIP_PERFORMER = 3;
728        public static final int RELATIONSHIP_SPEAKER = 4;
729
730        /**
731         * The type of attendee. Column name.
732         * <P>
733         * Type: Integer (one of {@link #TYPE_NONE}, {@link #TYPE_REQUIRED},
734         * {@link #TYPE_OPTIONAL}, {@link #TYPE_RESOURCE})
735         * </P>
736         */
737        public static final String ATTENDEE_TYPE = "attendeeType";
738
739        public static final int TYPE_NONE = 0;
740        public static final int TYPE_REQUIRED = 1;
741        public static final int TYPE_OPTIONAL = 2;
742        /**
743         * This specifies that an attendee is a resource, like a room, a
744         * cabbage, or something and not an actual person.
745         */
746        public static final int TYPE_RESOURCE = 3;
747
748        /**
749         * The attendance status of the attendee. Column name.
750         * <P>Type: Integer (one of {@link #ATTENDEE_STATUS_ACCEPTED}, ...).</P>
751         */
752        public static final String ATTENDEE_STATUS = "attendeeStatus";
753
754        public static final int ATTENDEE_STATUS_NONE = 0;
755        public static final int ATTENDEE_STATUS_ACCEPTED = 1;
756        public static final int ATTENDEE_STATUS_DECLINED = 2;
757        public static final int ATTENDEE_STATUS_INVITED = 3;
758        public static final int ATTENDEE_STATUS_TENTATIVE = 4;
759    }
760
761    /**
762     * Fields and helpers for interacting with Attendees. Each row of this table
763     * represents a single attendee or guest of an event. Calling
764     * {@link #query(ContentResolver, long, String[])} will return a list of attendees for
765     * the event with the given eventId. Both apps and sync adapters may write
766     * to this table. There are six writable fields and all of them except
767     * {@link #ATTENDEE_NAME} must be included when inserting a new attendee.
768     * They are:
769     * <ul>
770     * <li>{@link #EVENT_ID}</li>
771     * <li>{@link #ATTENDEE_NAME}</li>
772     * <li>{@link #ATTENDEE_EMAIL}</li>
773     * <li>{@link #ATTENDEE_RELATIONSHIP}</li>
774     * <li>{@link #ATTENDEE_TYPE}</li>
775     * <li>{@link #ATTENDEE_STATUS}</li>
776     * </ul>
777     */
778    public static final class Attendees implements BaseColumns, AttendeesColumns, EventsColumns {
779
780        /**
781         * The content:// style URL for accessing Attendees data
782         */
783        @SuppressWarnings("hiding")
784        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/attendees");
785        private static final String ATTENDEES_WHERE = Attendees.EVENT_ID + "=?";
786
787        /**
788         * This utility class cannot be instantiated
789         */
790        private Attendees() {}
791
792        /**
793         * Queries all attendees associated with the given event. This is a
794         * blocking call and should not be done on the UI thread.
795         *
796         * @param cr The content resolver to use for the query
797         * @param eventId The id of the event to retrieve attendees for
798         * @param projection the columns to return in the cursor
799         * @return A Cursor containing all attendees for the event
800         */
801        public static final Cursor query(ContentResolver cr, long eventId, String[] projection) {
802            String[] attArgs = {Long.toString(eventId)};
803            return cr.query(CONTENT_URI, projection, ATTENDEES_WHERE, attArgs /* selection args */,
804                    null /* sort order */);
805        }
806    }
807
808    /**
809     * Columns from the Events table that other tables join into themselves.
810     */
811    protected interface EventsColumns {
812
813        /**
814         * The {@link Calendars#_ID} of the calendar the event belongs to.
815         * Column name.
816         * <P>Type: INTEGER</P>
817         */
818        public static final String CALENDAR_ID = "calendar_id";
819
820        /**
821         * The title of the event. Column name.
822         * <P>Type: TEXT</P>
823         */
824        public static final String TITLE = "title";
825
826        /**
827         * The description of the event. Column name.
828         * <P>Type: TEXT</P>
829         */
830        public static final String DESCRIPTION = "description";
831
832        /**
833         * Where the event takes place. Column name.
834         * <P>Type: TEXT</P>
835         */
836        public static final String EVENT_LOCATION = "eventLocation";
837
838        /**
839         * A secondary color for the individual event. This should only be
840         * updated by the sync adapter for a given account.
841         * <P>Type: INTEGER</P>
842         */
843        public static final String EVENT_COLOR = "eventColor";
844
845        /**
846         * A secondary color key for the individual event. NULL or an empty
847         * string are reserved for indicating that the event does not use a key
848         * for looking up the color. The provider will update
849         * {@link #EVENT_COLOR} automatically when a valid key is written to
850         * this column. The key must reference an existing row of the
851         * {@link Colors} table. @see Colors
852         * <P>
853         * Type: TEXT
854         * </P>
855         */
856        public static final String EVENT_COLOR_KEY = "eventColor_index";
857
858        /**
859         * The event status. Column name.
860         * <P>Type: INTEGER (one of {@link #STATUS_TENTATIVE}...)</P>
861         */
862        public static final String STATUS = "eventStatus";
863
864        public static final int STATUS_TENTATIVE = 0;
865        public static final int STATUS_CONFIRMED = 1;
866        public static final int STATUS_CANCELED = 2;
867
868        /**
869         * This is a copy of the attendee status for the owner of this event.
870         * This field is copied here so that we can efficiently filter out
871         * events that are declined without having to look in the Attendees
872         * table. Column name.
873         *
874         * <P>Type: INTEGER (int)</P>
875         */
876        public static final String SELF_ATTENDEE_STATUS = "selfAttendeeStatus";
877
878        /**
879         * This column is available for use by sync adapters. Column name.
880         * <P>Type: TEXT</P>
881         */
882        public static final String SYNC_DATA1 = "sync_data1";
883
884        /**
885         * This column is available for use by sync adapters. Column name.
886         * <P>Type: TEXT</P>
887         */
888        public static final String SYNC_DATA2 = "sync_data2";
889
890        /**
891         * This column is available for use by sync adapters. Column name.
892         * <P>Type: TEXT</P>
893         */
894        public static final String SYNC_DATA3 = "sync_data3";
895
896        /**
897         * This column is available for use by sync adapters. Column name.
898         * <P>Type: TEXT</P>
899         */
900        public static final String SYNC_DATA4 = "sync_data4";
901
902        /**
903         * This column is available for use by sync adapters. Column name.
904         * <P>Type: TEXT</P>
905         */
906        public static final String SYNC_DATA5 = "sync_data5";
907
908        /**
909         * This column is available for use by sync adapters. Column name.
910         * <P>Type: TEXT</P>
911         */
912        public static final String SYNC_DATA6 = "sync_data6";
913
914        /**
915         * This column is available for use by sync adapters. Column name.
916         * <P>Type: TEXT</P>
917         */
918        public static final String SYNC_DATA7 = "sync_data7";
919
920        /**
921         * This column is available for use by sync adapters. Column name.
922         * <P>Type: TEXT</P>
923         */
924        public static final String SYNC_DATA8 = "sync_data8";
925
926        /**
927         * This column is available for use by sync adapters. Column name.
928         * <P>Type: TEXT</P>
929         */
930        public static final String SYNC_DATA9 = "sync_data9";
931
932        /**
933         * This column is available for use by sync adapters. Column name.
934         * <P>Type: TEXT</P>
935         */
936        public static final String SYNC_DATA10 = "sync_data10";
937
938        /**
939         * Used to indicate that a row is not a real event but an original copy of a locally
940         * modified event. A copy is made when an event changes from non-dirty to dirty and the
941         * event is on a calendar with {@link Calendars#CAN_PARTIALLY_UPDATE} set to 1. This copy
942         * does not get expanded in the instances table and is only visible in queries made by a
943         * sync adapter. The copy gets removed when the event is changed back to non-dirty by a
944         * sync adapter.
945         * <P>Type: INTEGER (boolean)</P>
946         */
947        public static final String LAST_SYNCED = "lastSynced";
948
949        /**
950         * The time the event starts in UTC millis since epoch. Column name.
951         * <P>Type: INTEGER (long; millis since epoch)</P>
952         */
953        public static final String DTSTART = "dtstart";
954
955        /**
956         * The time the event ends in UTC millis since epoch. Column name.
957         * <P>Type: INTEGER (long; millis since epoch)</P>
958         */
959        public static final String DTEND = "dtend";
960
961        /**
962         * The duration of the event in RFC2445 format. Column name.
963         * <P>Type: TEXT (duration in RFC2445 format)</P>
964         */
965        public static final String DURATION = "duration";
966
967        /**
968         * The timezone for the event. Column name.
969         * <P>Type: TEXT</P>
970         */
971        public static final String EVENT_TIMEZONE = "eventTimezone";
972
973        /**
974         * The timezone for the end time of the event. Column name.
975         * <P>Type: TEXT</P>
976         */
977        public static final String EVENT_END_TIMEZONE = "eventEndTimezone";
978
979        /**
980         * Is the event all day (time zone independent). Column name.
981         * <P>Type: INTEGER (boolean)</P>
982         */
983        public static final String ALL_DAY = "allDay";
984
985        /**
986         * Defines how the event shows up for others when the calendar is
987         * shared. Column name.
988         * <P>Type: INTEGER (One of {@link #ACCESS_DEFAULT}, ...)</P>
989         */
990        public static final String ACCESS_LEVEL = "accessLevel";
991
992        /**
993         * Default access is controlled by the server and will be treated as
994         * public on the device.
995         */
996        public static final int ACCESS_DEFAULT = 0;
997        /**
998         * Confidential is not used by the app.
999         */
1000        public static final int ACCESS_CONFIDENTIAL = 1;
1001        /**
1002         * Private shares the event as a free/busy slot with no details.
1003         */
1004        public static final int ACCESS_PRIVATE = 2;
1005        /**
1006         * Public makes the contents visible to anyone with access to the
1007         * calendar.
1008         */
1009        public static final int ACCESS_PUBLIC = 3;
1010
1011        /**
1012         * If this event counts as busy time or is still free time that can be
1013         * scheduled over. Column name.
1014         * <P>
1015         * Type: INTEGER (One of {@link #AVAILABILITY_BUSY},
1016         * {@link #AVAILABILITY_FREE}, {@link #AVAILABILITY_TENTATIVE})
1017         * </P>
1018         */
1019        public static final String AVAILABILITY = "availability";
1020
1021        /**
1022         * Indicates that this event takes up time and will conflict with other
1023         * events.
1024         */
1025        public static final int AVAILABILITY_BUSY = 0;
1026        /**
1027         * Indicates that this event is free time and will not conflict with
1028         * other events.
1029         */
1030        public static final int AVAILABILITY_FREE = 1;
1031        /**
1032         * Indicates that the owner's availability may change, but should be
1033         * considered busy time that will conflict.
1034         */
1035        public static final int AVAILABILITY_TENTATIVE = 2;
1036
1037        /**
1038         * Whether the event has an alarm or not. Column name.
1039         * <P>Type: INTEGER (boolean)</P>
1040         */
1041        public static final String HAS_ALARM = "hasAlarm";
1042
1043        /**
1044         * Whether the event has extended properties or not. Column name.
1045         * <P>Type: INTEGER (boolean)</P>
1046         */
1047        public static final String HAS_EXTENDED_PROPERTIES = "hasExtendedProperties";
1048
1049        /**
1050         * The recurrence rule for the event. Column name.
1051         * <P>Type: TEXT</P>
1052         */
1053        public static final String RRULE = "rrule";
1054
1055        /**
1056         * The recurrence dates for the event. Column name.
1057         * <P>Type: TEXT</P>
1058         */
1059        public static final String RDATE = "rdate";
1060
1061        /**
1062         * The recurrence exception rule for the event. Column name.
1063         * <P>Type: TEXT</P>
1064         */
1065        public static final String EXRULE = "exrule";
1066
1067        /**
1068         * The recurrence exception dates for the event. Column name.
1069         * <P>Type: TEXT</P>
1070         */
1071        public static final String EXDATE = "exdate";
1072
1073        /**
1074         * The {@link Events#_ID} of the original recurring event for which this
1075         * event is an exception. Column name.
1076         * <P>Type: TEXT</P>
1077         */
1078        public static final String ORIGINAL_ID = "original_id";
1079
1080        /**
1081         * The _sync_id of the original recurring event for which this event is
1082         * an exception. The provider should keep the original_id in sync when
1083         * this is updated. Column name.
1084         * <P>Type: TEXT</P>
1085         */
1086        public static final String ORIGINAL_SYNC_ID = "original_sync_id";
1087
1088        /**
1089         * The original instance time of the recurring event for which this
1090         * event is an exception. Column name.
1091         * <P>Type: INTEGER (long; millis since epoch)</P>
1092         */
1093        public static final String ORIGINAL_INSTANCE_TIME = "originalInstanceTime";
1094
1095        /**
1096         * The allDay status (true or false) of the original recurring event
1097         * for which this event is an exception. Column name.
1098         * <P>Type: INTEGER (boolean)</P>
1099         */
1100        public static final String ORIGINAL_ALL_DAY = "originalAllDay";
1101
1102        /**
1103         * The last date this event repeats on, or NULL if it never ends. Column
1104         * name.
1105         * <P>Type: INTEGER (long; millis since epoch)</P>
1106         */
1107        public static final String LAST_DATE = "lastDate";
1108
1109        /**
1110         * Whether the event has attendee information.  True if the event
1111         * has full attendee data, false if the event has information about
1112         * self only. Column name.
1113         * <P>Type: INTEGER (boolean)</P>
1114         */
1115        public static final String HAS_ATTENDEE_DATA = "hasAttendeeData";
1116
1117        /**
1118         * Whether guests can modify the event. Column name.
1119         * <P>Type: INTEGER (boolean)</P>
1120         */
1121        public static final String GUESTS_CAN_MODIFY = "guestsCanModify";
1122
1123        /**
1124         * Whether guests can invite other guests. Column name.
1125         * <P>Type: INTEGER (boolean)</P>
1126         */
1127        public static final String GUESTS_CAN_INVITE_OTHERS = "guestsCanInviteOthers";
1128
1129        /**
1130         * Whether guests can see the list of attendees. Column name.
1131         * <P>Type: INTEGER (boolean)</P>
1132         */
1133        public static final String GUESTS_CAN_SEE_GUESTS = "guestsCanSeeGuests";
1134
1135        /**
1136         * Email of the organizer (owner) of the event. Column name.
1137         * <P>Type: STRING</P>
1138         */
1139        public static final String ORGANIZER = "organizer";
1140
1141        /**
1142         * Whether the user can invite others to the event. The
1143         * GUESTS_CAN_INVITE_OTHERS is a setting that applies to an arbitrary
1144         * guest, while CAN_INVITE_OTHERS indicates if the user can invite
1145         * others (either through GUESTS_CAN_INVITE_OTHERS or because the user
1146         * has modify access to the event). Column name.
1147         * <P>Type: INTEGER (boolean, readonly)</P>
1148         */
1149        public static final String CAN_INVITE_OTHERS = "canInviteOthers";
1150    }
1151
1152    /**
1153     * Class that represents an Event Entity. There is one entry per event.
1154     * Recurring events show up as a single entry. This is a helper class to
1155     * make batch operations easier. A {@link ContentResolver} or
1156     * {@link ContentProviderClient} is required as the helper does additional
1157     * queries to add reminders and attendees to each entry.
1158     */
1159    public static final class EventsEntity implements BaseColumns, SyncColumns, EventsColumns {
1160        /**
1161         * The content:// style URL for this table
1162         */
1163        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
1164                "/event_entities");
1165
1166        /**
1167         * This utility class cannot be instantiated
1168         */
1169        private EventsEntity() {}
1170
1171        /**
1172         * Creates a new iterator for events
1173         *
1174         * @param cursor An event query
1175         * @param resolver For performing additional queries
1176         * @return an EntityIterator containing one entity per event in the
1177         *         cursor
1178         */
1179        public static EntityIterator newEntityIterator(Cursor cursor, ContentResolver resolver) {
1180            return new EntityIteratorImpl(cursor, resolver);
1181        }
1182
1183        /**
1184         * Creates a new iterator for events
1185         *
1186         * @param cursor An event query
1187         * @param provider For performing additional queries
1188         * @return an EntityIterator containing one entity per event in the
1189         *         cursor
1190         */
1191        public static EntityIterator newEntityIterator(Cursor cursor,
1192                ContentProviderClient provider) {
1193            return new EntityIteratorImpl(cursor, provider);
1194        }
1195
1196        private static class EntityIteratorImpl extends CursorEntityIterator {
1197            private final ContentResolver mResolver;
1198            private final ContentProviderClient mProvider;
1199
1200            private static final String[] REMINDERS_PROJECTION = new String[] {
1201                    Reminders.MINUTES,
1202                    Reminders.METHOD,
1203            };
1204            private static final int COLUMN_MINUTES = 0;
1205            private static final int COLUMN_METHOD = 1;
1206
1207            private static final String[] ATTENDEES_PROJECTION = new String[] {
1208                    Attendees.ATTENDEE_NAME,
1209                    Attendees.ATTENDEE_EMAIL,
1210                    Attendees.ATTENDEE_RELATIONSHIP,
1211                    Attendees.ATTENDEE_TYPE,
1212                    Attendees.ATTENDEE_STATUS,
1213            };
1214            private static final int COLUMN_ATTENDEE_NAME = 0;
1215            private static final int COLUMN_ATTENDEE_EMAIL = 1;
1216            private static final int COLUMN_ATTENDEE_RELATIONSHIP = 2;
1217            private static final int COLUMN_ATTENDEE_TYPE = 3;
1218            private static final int COLUMN_ATTENDEE_STATUS = 4;
1219            private static final String[] EXTENDED_PROJECTION = new String[] {
1220                    ExtendedProperties._ID,
1221                    ExtendedProperties.NAME,
1222                    ExtendedProperties.VALUE
1223            };
1224            private static final int COLUMN_ID = 0;
1225            private static final int COLUMN_NAME = 1;
1226            private static final int COLUMN_VALUE = 2;
1227
1228            private static final String WHERE_EVENT_ID = "event_id=?";
1229
1230            public EntityIteratorImpl(Cursor cursor, ContentResolver resolver) {
1231                super(cursor);
1232                mResolver = resolver;
1233                mProvider = null;
1234            }
1235
1236            public EntityIteratorImpl(Cursor cursor, ContentProviderClient provider) {
1237                super(cursor);
1238                mResolver = null;
1239                mProvider = provider;
1240            }
1241
1242            @Override
1243            public Entity getEntityAndIncrementCursor(Cursor cursor) throws RemoteException {
1244                // we expect the cursor is already at the row we need to read from
1245                final long eventId = cursor.getLong(cursor.getColumnIndexOrThrow(Events._ID));
1246                ContentValues cv = new ContentValues();
1247                cv.put(Events._ID, eventId);
1248                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, CALENDAR_ID);
1249                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, TITLE);
1250                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, DESCRIPTION);
1251                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_LOCATION);
1252                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, STATUS);
1253                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, SELF_ATTENDEE_STATUS);
1254                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DTSTART);
1255                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DTEND);
1256                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, DURATION);
1257                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_TIMEZONE);
1258                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_END_TIMEZONE);
1259                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ALL_DAY);
1260                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, ACCESS_LEVEL);
1261                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, AVAILABILITY);
1262                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, HAS_ALARM);
1263                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
1264                        HAS_EXTENDED_PROPERTIES);
1265                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, RRULE);
1266                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, RDATE);
1267                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EXRULE);
1268                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EXDATE);
1269                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORIGINAL_SYNC_ID);
1270                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORIGINAL_ID);
1271                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv,
1272                        ORIGINAL_INSTANCE_TIME);
1273                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, ORIGINAL_ALL_DAY);
1274                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, LAST_DATE);
1275                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, HAS_ATTENDEE_DATA);
1276                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
1277                        GUESTS_CAN_INVITE_OTHERS);
1278                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, GUESTS_CAN_MODIFY);
1279                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, GUESTS_CAN_SEE_GUESTS);
1280                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORGANIZER);
1281                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, _SYNC_ID);
1282                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DIRTY);
1283                DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, LAST_SYNCED);
1284                DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, DELETED);
1285                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA1);
1286                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA2);
1287                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA3);
1288                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA4);
1289                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA5);
1290                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA6);
1291                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA7);
1292                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA8);
1293                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA9);
1294                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA10);
1295                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC1);
1296                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC2);
1297                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC3);
1298                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC4);
1299                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC5);
1300                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC6);
1301                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC7);
1302                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC8);
1303                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC9);
1304                DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC10);
1305
1306                Entity entity = new Entity(cv);
1307                Cursor subCursor;
1308                if (mResolver != null) {
1309                    subCursor = mResolver.query(Reminders.CONTENT_URI, REMINDERS_PROJECTION,
1310                            WHERE_EVENT_ID,
1311                            new String[] { Long.toString(eventId) }  /* selectionArgs */,
1312                            null /* sortOrder */);
1313                } else {
1314                    subCursor = mProvider.query(Reminders.CONTENT_URI, REMINDERS_PROJECTION,
1315                            WHERE_EVENT_ID,
1316                            new String[] { Long.toString(eventId) }  /* selectionArgs */,
1317                            null /* sortOrder */);
1318                }
1319                try {
1320                    while (subCursor.moveToNext()) {
1321                        ContentValues reminderValues = new ContentValues();
1322                        reminderValues.put(Reminders.MINUTES, subCursor.getInt(COLUMN_MINUTES));
1323                        reminderValues.put(Reminders.METHOD, subCursor.getInt(COLUMN_METHOD));
1324                        entity.addSubValue(Reminders.CONTENT_URI, reminderValues);
1325                    }
1326                } finally {
1327                    subCursor.close();
1328                }
1329
1330                if (mResolver != null) {
1331                    subCursor = mResolver.query(Attendees.CONTENT_URI, ATTENDEES_PROJECTION,
1332                            WHERE_EVENT_ID,
1333                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1334                            null /* sortOrder */);
1335                } else {
1336                    subCursor = mProvider.query(Attendees.CONTENT_URI, ATTENDEES_PROJECTION,
1337                            WHERE_EVENT_ID,
1338                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1339                            null /* sortOrder */);
1340                }
1341                try {
1342                    while (subCursor.moveToNext()) {
1343                        ContentValues attendeeValues = new ContentValues();
1344                        attendeeValues.put(Attendees.ATTENDEE_NAME,
1345                                subCursor.getString(COLUMN_ATTENDEE_NAME));
1346                        attendeeValues.put(Attendees.ATTENDEE_EMAIL,
1347                                subCursor.getString(COLUMN_ATTENDEE_EMAIL));
1348                        attendeeValues.put(Attendees.ATTENDEE_RELATIONSHIP,
1349                                subCursor.getInt(COLUMN_ATTENDEE_RELATIONSHIP));
1350                        attendeeValues.put(Attendees.ATTENDEE_TYPE,
1351                                subCursor.getInt(COLUMN_ATTENDEE_TYPE));
1352                        attendeeValues.put(Attendees.ATTENDEE_STATUS,
1353                                subCursor.getInt(COLUMN_ATTENDEE_STATUS));
1354                        entity.addSubValue(Attendees.CONTENT_URI, attendeeValues);
1355                    }
1356                } finally {
1357                    subCursor.close();
1358                }
1359
1360                if (mResolver != null) {
1361                    subCursor = mResolver.query(ExtendedProperties.CONTENT_URI, EXTENDED_PROJECTION,
1362                            WHERE_EVENT_ID,
1363                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1364                            null /* sortOrder */);
1365                } else {
1366                    subCursor = mProvider.query(ExtendedProperties.CONTENT_URI, EXTENDED_PROJECTION,
1367                            WHERE_EVENT_ID,
1368                            new String[] { Long.toString(eventId) } /* selectionArgs */,
1369                            null /* sortOrder */);
1370                }
1371                try {
1372                    while (subCursor.moveToNext()) {
1373                        ContentValues extendedValues = new ContentValues();
1374                        extendedValues.put(ExtendedProperties._ID,
1375                                subCursor.getString(COLUMN_ID));
1376                        extendedValues.put(ExtendedProperties.NAME,
1377                                subCursor.getString(COLUMN_NAME));
1378                        extendedValues.put(ExtendedProperties.VALUE,
1379                                subCursor.getString(COLUMN_VALUE));
1380                        entity.addSubValue(ExtendedProperties.CONTENT_URI, extendedValues);
1381                    }
1382                } finally {
1383                    subCursor.close();
1384                }
1385
1386                cursor.moveToNext();
1387                return entity;
1388            }
1389        }
1390    }
1391
1392    /**
1393     * Constants and helpers for the Events table, which contains details for
1394     * individual events. <h3>Operations</h3> All operations can be done either
1395     * as an app or as a sync adapter. To perform an operation as a sync adapter
1396     * {@link #CALLER_IS_SYNCADAPTER} should be set to true and
1397     * {@link #ACCOUNT_NAME} and {@link #ACCOUNT_TYPE} must be set in the Uri
1398     * parameters. See
1399     * {@link Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)}
1400     * for details on adding parameters. Sync adapters have write access to more
1401     * columns but are restricted to a single account at a time.
1402     * <dl>
1403     * <dt><b>Insert</b></dt>
1404     * <dd>When inserting a new event the following fields must be included:
1405     * <ul>
1406     * <li>dtstart</li>
1407     * <li>dtend if the event is non-recurring</li>
1408     * <li>duration if the event is recurring</li>
1409     * <li>rrule or rdate if the event is recurring</li>
1410     * <li>eventTimezone</li>
1411     * <li>a calendar_id</li>
1412     * </ul>
1413     * There are also further requirements when inserting or updating an event.
1414     * See the section on Writing to Events.</dd>
1415     * <dt><b>Update</b></dt>
1416     * <dd>To perform an update of an Event the {@link Events#_ID} of the event
1417     * should be provided either as an appended id to the Uri (
1418     * {@link ContentUris#withAppendedId}) or as the first selection item--the
1419     * selection should start with "_id=?" and the first selectionArg should be
1420     * the _id of the event. Updates may also be done using a selection and no
1421     * id. Updating an event must respect the same rules as inserting and is
1422     * further restricted in the fields that can be written. See the section on
1423     * Writing to Events.</dd>
1424     * <dt><b>Delete</b></dt>
1425     * <dd>Events can be deleted either by the {@link Events#_ID} as an appended
1426     * id on the Uri or using any standard selection. If an appended id is used
1427     * a selection is not allowed. There are two versions of delete: as an app
1428     * and as a sync adapter. An app delete will set the deleted column on an
1429     * event and remove all instances of that event. A sync adapter delete will
1430     * remove the event from the database and all associated data.</dd>
1431     * <dt><b>Query</b></dt>
1432     * <dd>Querying the Events table will get you all information about a set of
1433     * events except their reminders, attendees, and extended properties. There
1434     * will be one row returned for each event that matches the query selection,
1435     * or at most a single row if the {@link Events#_ID} is appended to the Uri.
1436     * Recurring events will only return a single row regardless of the number
1437     * of times that event repeats.</dd>
1438     * </dl>
1439     * <h3>Writing to Events</h3> There are further restrictions on all Updates
1440     * and Inserts in the Events table:
1441     * <ul>
1442     * <li>If allDay is set to 1 eventTimezone must be {@link Time#TIMEZONE_UTC}
1443     * and the time must correspond to a midnight boundary.</li>
1444     * <li>Exceptions are not allowed to recur. If rrule or rdate is not empty,
1445     * original_id and original_sync_id must be empty.</li>
1446     * <li>In general a calendar_id should not be modified after insertion. This
1447     * is not explicitly forbidden but many sync adapters will not behave in an
1448     * expected way if the calendar_id is modified.</li>
1449     * </ul>
1450     * The following Events columns are writable by both an app and a sync
1451     * adapter.
1452     * <ul>
1453     * <li>{@link #CALENDAR_ID}</li>
1454     * <li>{@link #ORGANIZER}</li>
1455     * <li>{@link #TITLE}</li>
1456     * <li>{@link #EVENT_LOCATION}</li>
1457     * <li>{@link #DESCRIPTION}</li>
1458     * <li>{@link #EVENT_COLOR}</li>
1459     * <li>{@link #DTSTART}</li>
1460     * <li>{@link #DTEND}</li>
1461     * <li>{@link #EVENT_TIMEZONE}</li>
1462     * <li>{@link #EVENT_END_TIMEZONE}</li>
1463     * <li>{@link #DURATION}</li>
1464     * <li>{@link #ALL_DAY}</li>
1465     * <li>{@link #RRULE}</li>
1466     * <li>{@link #RDATE}</li>
1467     * <li>{@link #EXRULE}</li>
1468     * <li>{@link #EXDATE}</li>
1469     * <li>{@link #ORIGINAL_ID}</li>
1470     * <li>{@link #ORIGINAL_SYNC_ID}</li>
1471     * <li>{@link #ORIGINAL_INSTANCE_TIME}</li>
1472     * <li>{@link #ORIGINAL_ALL_DAY}</li>
1473     * <li>{@link #ACCESS_LEVEL}</li>
1474     * <li>{@link #AVAILABILITY}</li>
1475     * <li>{@link #GUESTS_CAN_MODIFY}</li>
1476     * <li>{@link #GUESTS_CAN_INVITE_OTHERS}</li>
1477     * <li>{@link #GUESTS_CAN_SEE_GUESTS}</li>
1478     * </ul>
1479     * The following Events columns are writable only by a sync adapter
1480     * <ul>
1481     * <li>{@link #DIRTY}</li>
1482     * <li>{@link #_SYNC_ID}</li>
1483     * <li>{@link #SYNC_DATA1}</li>
1484     * <li>{@link #SYNC_DATA2}</li>
1485     * <li>{@link #SYNC_DATA3}</li>
1486     * <li>{@link #SYNC_DATA4}</li>
1487     * <li>{@link #SYNC_DATA5}</li>
1488     * <li>{@link #SYNC_DATA6}</li>
1489     * <li>{@link #SYNC_DATA7}</li>
1490     * <li>{@link #SYNC_DATA8}</li>
1491     * <li>{@link #SYNC_DATA9}</li>
1492     * <li>{@link #SYNC_DATA10}</li>
1493     * </ul>
1494     * The remaining columns are either updated by the provider only or are
1495     * views into other tables and cannot be changed through the Events table.
1496     */
1497    public static final class Events implements BaseColumns, SyncColumns, EventsColumns,
1498            CalendarColumns {
1499
1500        /**
1501         * The content:// style URL for interacting with events. Appending an
1502         * event id using {@link ContentUris#withAppendedId(Uri, long)} will
1503         * specify a single event.
1504         */
1505        @SuppressWarnings("hiding")
1506        public static final Uri CONTENT_URI =
1507                Uri.parse("content://" + AUTHORITY + "/events");
1508
1509        /**
1510         * The content:// style URI for recurring event exceptions.  Insertions require an
1511         * appended event ID.  Deletion of exceptions requires both the original event ID and
1512         * the exception event ID (see {@link Uri.Builder#appendPath}).
1513         */
1514        public static final Uri CONTENT_EXCEPTION_URI =
1515                Uri.parse("content://" + AUTHORITY + "/exception");
1516
1517        /**
1518         * This utility class cannot be instantiated
1519         */
1520        private Events() {}
1521
1522        /**
1523         * The default sort order for this table
1524         */
1525        private static final String DEFAULT_SORT_ORDER = "";
1526
1527        /**
1528         * These are columns that should only ever be updated by the provider,
1529         * either because they are views mapped to another table or because they
1530         * are used for provider only functionality. TODO move to provider
1531         *
1532         * @hide
1533         */
1534        public static String[] PROVIDER_WRITABLE_COLUMNS = new String[] {
1535                ACCOUNT_NAME,
1536                ACCOUNT_TYPE,
1537                CAL_SYNC1,
1538                CAL_SYNC2,
1539                CAL_SYNC3,
1540                CAL_SYNC4,
1541                CAL_SYNC5,
1542                CAL_SYNC6,
1543                CAL_SYNC7,
1544                CAL_SYNC8,
1545                CAL_SYNC9,
1546                CAL_SYNC10,
1547                ALLOWED_REMINDERS,
1548                CALENDAR_ACCESS_LEVEL,
1549                CALENDAR_COLOR,
1550                CALENDAR_TIME_ZONE,
1551                CAN_MODIFY_TIME_ZONE,
1552                CAN_ORGANIZER_RESPOND,
1553                CALENDAR_DISPLAY_NAME,
1554                CAN_PARTIALLY_UPDATE,
1555                SYNC_EVENTS,
1556                VISIBLE,
1557        };
1558
1559        /**
1560         * These fields are only writable by a sync adapter. To modify them the
1561         * caller must include CALLER_IS_SYNCADAPTER, _SYNC_ACCOUNT, and
1562         * _SYNC_ACCOUNT_TYPE in the query parameters. TODO move to provider.
1563         *
1564         * @hide
1565         */
1566        public static final String[] SYNC_WRITABLE_COLUMNS = new String[] {
1567            _SYNC_ID,
1568            DIRTY,
1569            SYNC_DATA1,
1570            SYNC_DATA2,
1571            SYNC_DATA3,
1572            SYNC_DATA4,
1573            SYNC_DATA5,
1574            SYNC_DATA6,
1575            SYNC_DATA7,
1576            SYNC_DATA8,
1577            SYNC_DATA9,
1578            SYNC_DATA10,
1579        };
1580    }
1581
1582    /**
1583     * Fields and helpers for interacting with Instances. An instance is a
1584     * single occurrence of an event including time zone specific start and end
1585     * days and minutes. The instances table is not writable and only provides a
1586     * way to query event occurrences.
1587     */
1588    public static final class Instances implements BaseColumns, EventsColumns, CalendarColumns {
1589
1590        private static final String WHERE_CALENDARS_SELECTED = Calendars.VISIBLE + "=?";
1591        private static final String[] WHERE_CALENDARS_ARGS = {
1592            "1"
1593        };
1594
1595        /**
1596         * This utility class cannot be instantiated
1597         */
1598        private Instances() {}
1599
1600        /**
1601         * Performs a query to return all visible instances in the given range.
1602         * This is a blocking function and should not be done on the UI thread.
1603         * This will cause an expansion of recurring events to fill this time
1604         * range if they are not already expanded and will slow down for larger
1605         * time ranges with many recurring events.
1606         *
1607         * @param cr The ContentResolver to use for the query
1608         * @param projection The columns to return
1609         * @param begin The start of the time range to query in UTC millis since
1610         *            epoch
1611         * @param end The end of the time range to query in UTC millis since
1612         *            epoch
1613         * @return A Cursor containing all instances in the given range
1614         */
1615        public static final Cursor query(ContentResolver cr, String[] projection,
1616                                         long begin, long end) {
1617            Uri.Builder builder = CONTENT_URI.buildUpon();
1618            ContentUris.appendId(builder, begin);
1619            ContentUris.appendId(builder, end);
1620            return cr.query(builder.build(), projection, WHERE_CALENDARS_SELECTED,
1621                    WHERE_CALENDARS_ARGS, DEFAULT_SORT_ORDER);
1622        }
1623
1624        /**
1625         * Performs a query to return all visible instances in the given range
1626         * that match the given query. This is a blocking function and should
1627         * not be done on the UI thread. This will cause an expansion of
1628         * recurring events to fill this time range if they are not already
1629         * expanded and will slow down for larger time ranges with many
1630         * recurring events.
1631         *
1632         * @param cr The ContentResolver to use for the query
1633         * @param projection The columns to return
1634         * @param begin The start of the time range to query in UTC millis since
1635         *            epoch
1636         * @param end The end of the time range to query in UTC millis since
1637         *            epoch
1638         * @param searchQuery A string of space separated search terms. Segments
1639         *            enclosed by double quotes will be treated as a single
1640         *            term.
1641         * @return A Cursor of instances matching the search terms in the given
1642         *         time range
1643         */
1644        public static final Cursor query(ContentResolver cr, String[] projection,
1645                                         long begin, long end, String searchQuery) {
1646            Uri.Builder builder = CONTENT_SEARCH_URI.buildUpon();
1647            ContentUris.appendId(builder, begin);
1648            ContentUris.appendId(builder, end);
1649            builder = builder.appendPath(searchQuery);
1650            return cr.query(builder.build(), projection, WHERE_CALENDARS_SELECTED,
1651                    WHERE_CALENDARS_ARGS, DEFAULT_SORT_ORDER);
1652        }
1653
1654        /**
1655         * The content:// style URL for querying an instance range. The begin
1656         * and end of the range to query should be added as path segments if
1657         * this is used directly.
1658         */
1659        @SuppressWarnings("hiding")
1660        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
1661                "/instances/when");
1662        /**
1663         * The content:// style URL for querying an instance range by Julian
1664         * Day. The start and end day should be added as path segments if this
1665         * is used directly.
1666         */
1667        public static final Uri CONTENT_BY_DAY_URI =
1668            Uri.parse("content://" + AUTHORITY + "/instances/whenbyday");
1669        /**
1670         * The content:// style URL for querying an instance range with a search
1671         * term. The begin, end, and search string should be appended as path
1672         * segments if this is used directly.
1673         */
1674        public static final Uri CONTENT_SEARCH_URI = Uri.parse("content://" + AUTHORITY +
1675                "/instances/search");
1676        /**
1677         * The content:// style URL for querying an instance range with a search
1678         * term. The start day, end day, and search string should be appended as
1679         * path segments if this is used directly.
1680         */
1681        public static final Uri CONTENT_SEARCH_BY_DAY_URI =
1682            Uri.parse("content://" + AUTHORITY + "/instances/searchbyday");
1683
1684        /**
1685         * The default sort order for this table.
1686         */
1687        private static final String DEFAULT_SORT_ORDER = "begin ASC";
1688
1689        /**
1690         * The beginning time of the instance, in UTC milliseconds. Column name.
1691         * <P>Type: INTEGER (long; millis since epoch)</P>
1692         */
1693        public static final String BEGIN = "begin";
1694
1695        /**
1696         * The ending time of the instance, in UTC milliseconds. Column name.
1697         * <P>Type: INTEGER (long; millis since epoch)</P>
1698         */
1699        public static final String END = "end";
1700
1701        /**
1702         * The _id of the event for this instance. Column name.
1703         * <P>Type: INTEGER (long, foreign key to the Events table)</P>
1704         */
1705        public static final String EVENT_ID = "event_id";
1706
1707        /**
1708         * The Julian start day of the instance, relative to the local time
1709         * zone. Column name.
1710         * <P>Type: INTEGER (int)</P>
1711         */
1712        public static final String START_DAY = "startDay";
1713
1714        /**
1715         * The Julian end day of the instance, relative to the local time
1716         * zone. Column name.
1717         * <P>Type: INTEGER (int)</P>
1718         */
1719        public static final String END_DAY = "endDay";
1720
1721        /**
1722         * The start minute of the instance measured from midnight in the
1723         * local time zone. Column name.
1724         * <P>Type: INTEGER (int)</P>
1725         */
1726        public static final String START_MINUTE = "startMinute";
1727
1728        /**
1729         * The end minute of the instance measured from midnight in the
1730         * local time zone. Column name.
1731         * <P>Type: INTEGER (int)</P>
1732         */
1733        public static final String END_MINUTE = "endMinute";
1734    }
1735
1736    protected interface CalendarCacheColumns {
1737        /**
1738         * The key for the setting. Keys are defined in {@link CalendarCache}.
1739         */
1740        public static final String KEY = "key";
1741
1742        /**
1743         * The value of the given setting.
1744         */
1745        public static final String VALUE = "value";
1746    }
1747
1748    /**
1749     * CalendarCache stores some settings for calendar including the current
1750     * time zone for the instances. These settings are stored using a key/value
1751     * scheme. A {@link #KEY} must be specified when updating these values.
1752     */
1753    public static final class CalendarCache implements CalendarCacheColumns {
1754        /**
1755         * The URI to use for retrieving the properties from the Calendar db.
1756         */
1757        public static final Uri URI =
1758                Uri.parse("content://" + AUTHORITY + "/properties");
1759
1760        /**
1761         * This utility class cannot be instantiated
1762         */
1763        private CalendarCache() {}
1764
1765        /**
1766         * They key for updating the use of auto/home time zones in Calendar.
1767         * Valid values are {@link #TIMEZONE_TYPE_AUTO} or
1768         * {@link #TIMEZONE_TYPE_HOME}.
1769         */
1770        public static final String KEY_TIMEZONE_TYPE = "timezoneType";
1771
1772        /**
1773         * The key for updating the time zone used by the provider when it
1774         * generates the instances table. This should only be written if the
1775         * type is set to {@link #TIMEZONE_TYPE_HOME}. A valid time zone id
1776         * should be written to this field.
1777         */
1778        public static final String KEY_TIMEZONE_INSTANCES = "timezoneInstances";
1779
1780        /**
1781         * The key for reading the last time zone set by the user. This should
1782         * only be read by apps and it will be automatically updated whenever
1783         * {@link #KEY_TIMEZONE_INSTANCES} is updated with
1784         * {@link #TIMEZONE_TYPE_HOME} set.
1785         */
1786        public static final String KEY_TIMEZONE_INSTANCES_PREVIOUS = "timezoneInstancesPrevious";
1787
1788        /**
1789         * The value to write to {@link #KEY_TIMEZONE_TYPE} if the provider
1790         * should stay in sync with the device's time zone.
1791         */
1792        public static final String TIMEZONE_TYPE_AUTO = "auto";
1793
1794        /**
1795         * The value to write to {@link #KEY_TIMEZONE_TYPE} if the provider
1796         * should use a fixed time zone set by the user.
1797         */
1798        public static final String TIMEZONE_TYPE_HOME = "home";
1799    }
1800
1801    /**
1802     * A few Calendar globals are needed in the CalendarProvider for expanding
1803     * the Instances table and these are all stored in the first (and only) row
1804     * of the CalendarMetaData table.
1805     *
1806     * @hide
1807     */
1808    protected interface CalendarMetaDataColumns {
1809        /**
1810         * The local timezone that was used for precomputing the fields
1811         * in the Instances table.
1812         */
1813        public static final String LOCAL_TIMEZONE = "localTimezone";
1814
1815        /**
1816         * The minimum time used in expanding the Instances table,
1817         * in UTC milliseconds.
1818         * <P>Type: INTEGER</P>
1819         */
1820        public static final String MIN_INSTANCE = "minInstance";
1821
1822        /**
1823         * The maximum time used in expanding the Instances table,
1824         * in UTC milliseconds.
1825         * <P>Type: INTEGER</P>
1826         */
1827        public static final String MAX_INSTANCE = "maxInstance";
1828
1829        /**
1830         * The minimum Julian day in the EventDays table.
1831         * <P>Type: INTEGER</P>
1832         */
1833        public static final String MIN_EVENTDAYS = "minEventDays";
1834
1835        /**
1836         * The maximum Julian day in the EventDays table.
1837         * <P>Type: INTEGER</P>
1838         */
1839        public static final String MAX_EVENTDAYS = "maxEventDays";
1840    }
1841
1842    /**
1843     * @hide
1844     */
1845    public static final class CalendarMetaData implements CalendarMetaDataColumns, BaseColumns {
1846
1847        /**
1848         * This utility class cannot be instantiated
1849         */
1850        private CalendarMetaData() {}
1851    }
1852
1853    protected interface EventDaysColumns {
1854        /**
1855         * The Julian starting day number. Column name.
1856         * <P>Type: INTEGER (int)</P>
1857         */
1858        public static final String STARTDAY = "startDay";
1859        /**
1860         * The Julian ending day number. Column name.
1861         * <P>Type: INTEGER (int)</P>
1862         */
1863        public static final String ENDDAY = "endDay";
1864
1865    }
1866
1867    /**
1868     * Fields and helpers for querying for a list of days that contain events.
1869     */
1870    public static final class EventDays implements EventDaysColumns {
1871        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY
1872                + "/instances/groupbyday");
1873        private static final String SELECTION = "selected=1";
1874
1875        /**
1876         * This utility class cannot be instantiated
1877         */
1878        private EventDays() {}
1879
1880        /**
1881         * Retrieves the days with events for the Julian days starting at
1882         * "startDay" for "numDays". It returns a cursor containing startday and
1883         * endday representing the max range of days for all events beginning on
1884         * each startday.This is a blocking function and should not be done on
1885         * the UI thread.
1886         *
1887         * @param cr the ContentResolver
1888         * @param startDay the first Julian day in the range
1889         * @param numDays the number of days to load (must be at least 1)
1890         * @param projection the columns to return in the cursor
1891         * @return a database cursor containing a list of start and end days for
1892         *         events
1893         */
1894        public static final Cursor query(ContentResolver cr, int startDay, int numDays,
1895                String[] projection) {
1896            if (numDays < 1) {
1897                return null;
1898            }
1899            int endDay = startDay + numDays - 1;
1900            Uri.Builder builder = CONTENT_URI.buildUpon();
1901            ContentUris.appendId(builder, startDay);
1902            ContentUris.appendId(builder, endDay);
1903            return cr.query(builder.build(), projection, SELECTION,
1904                    null /* selection args */, STARTDAY);
1905        }
1906    }
1907
1908    protected interface RemindersColumns {
1909        /**
1910         * The event the reminder belongs to. Column name.
1911         * <P>Type: INTEGER (foreign key to the Events table)</P>
1912         */
1913        public static final String EVENT_ID = "event_id";
1914
1915        /**
1916         * The minutes prior to the event that the alarm should ring.  -1
1917         * specifies that we should use the default value for the system.
1918         * Column name.
1919         * <P>Type: INTEGER</P>
1920         */
1921        public static final String MINUTES = "minutes";
1922
1923        /**
1924         * Passing this as a minutes value will use the default reminder
1925         * minutes.
1926         */
1927        public static final int MINUTES_DEFAULT = -1;
1928
1929        /**
1930         * The alarm method, as set on the server. {@link #METHOD_DEFAULT},
1931         * {@link #METHOD_ALERT}, {@link #METHOD_EMAIL}, and {@link #METHOD_SMS}
1932         * are possible values; the device will only process
1933         * {@link #METHOD_DEFAULT} and {@link #METHOD_ALERT} reminders (the
1934         * other types are simply stored so we can send the same reminder info
1935         * back to the server when we make changes).
1936         */
1937        public static final String METHOD = "method";
1938
1939        public static final int METHOD_DEFAULT = 0;
1940        public static final int METHOD_ALERT = 1;
1941        public static final int METHOD_EMAIL = 2;
1942        public static final int METHOD_SMS = 3;
1943    }
1944
1945    /**
1946     * Fields and helpers for accessing reminders for an event. Each row of this
1947     * table represents a single reminder for an event. Calling
1948     * {@link #query(ContentResolver, long, String[])} will return a list of reminders for
1949     * the event with the given eventId. Both apps and sync adapters may write
1950     * to this table. There are three writable fields and all of them must be
1951     * included when inserting a new reminder. They are:
1952     * <ul>
1953     * <li>{@link #EVENT_ID}</li>
1954     * <li>{@link #MINUTES}</li>
1955     * <li>{@link #METHOD}</li>
1956     * </ul>
1957     */
1958    public static final class Reminders implements BaseColumns, RemindersColumns, EventsColumns {
1959        private static final String REMINDERS_WHERE = CalendarContract.Reminders.EVENT_ID + "=?";
1960        @SuppressWarnings("hiding")
1961        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/reminders");
1962
1963        /**
1964         * This utility class cannot be instantiated
1965         */
1966        private Reminders() {}
1967
1968        /**
1969         * Queries all reminders associated with the given event. This is a
1970         * blocking call and should not be done on the UI thread.
1971         *
1972         * @param cr The content resolver to use for the query
1973         * @param eventId The id of the event to retrieve reminders for
1974         * @param projection the columns to return in the cursor
1975         * @return A Cursor containing all reminders for the event
1976         */
1977        public static final Cursor query(ContentResolver cr, long eventId, String[] projection) {
1978            String[] remArgs = {Long.toString(eventId)};
1979            return cr.query(CONTENT_URI, projection, REMINDERS_WHERE, remArgs /*selection args*/,
1980                    null /* sort order */);
1981        }
1982    }
1983
1984    protected interface CalendarAlertsColumns {
1985        /**
1986         * The event that the alert belongs to. Column name.
1987         * <P>Type: INTEGER (foreign key to the Events table)</P>
1988         */
1989        public static final String EVENT_ID = "event_id";
1990
1991        /**
1992         * The start time of the event, in UTC. Column name.
1993         * <P>Type: INTEGER (long; millis since epoch)</P>
1994         */
1995        public static final String BEGIN = "begin";
1996
1997        /**
1998         * The end time of the event, in UTC. Column name.
1999         * <P>Type: INTEGER (long; millis since epoch)</P>
2000         */
2001        public static final String END = "end";
2002
2003        /**
2004         * The alarm time of the event, in UTC. Column name.
2005         * <P>Type: INTEGER (long; millis since epoch)</P>
2006         */
2007        public static final String ALARM_TIME = "alarmTime";
2008
2009        /**
2010         * The creation time of this database entry, in UTC.
2011         * Useful for debugging missed reminders. Column name.
2012         * <P>Type: INTEGER (long; millis since epoch)</P>
2013         */
2014        public static final String CREATION_TIME = "creationTime";
2015
2016        /**
2017         * The time that the alarm broadcast was received by the Calendar app,
2018         * in UTC. Useful for debugging missed reminders. Column name.
2019         * <P>Type: INTEGER (long; millis since epoch)</P>
2020         */
2021        public static final String RECEIVED_TIME = "receivedTime";
2022
2023        /**
2024         * The time that the notification was created by the Calendar app,
2025         * in UTC. Useful for debugging missed reminders. Column name.
2026         * <P>Type: INTEGER (long; millis since epoch)</P>
2027         */
2028        public static final String NOTIFY_TIME = "notifyTime";
2029
2030        /**
2031         * The state of this alert. It starts out as {@link #STATE_SCHEDULED}, then
2032         * when the alarm goes off, it changes to {@link #STATE_FIRED}, and then when
2033         * the user dismisses the alarm it changes to {@link #STATE_DISMISSED}. Column
2034         * name.
2035         * <P>Type: INTEGER</P>
2036         */
2037        public static final String STATE = "state";
2038
2039        /**
2040         * An alert begins in this state when it is first created.
2041         */
2042        public static final int STATE_SCHEDULED = 0;
2043        /**
2044         * After a notification for an alert has been created it should be
2045         * updated to fired.
2046         */
2047        public static final int STATE_FIRED = 1;
2048        /**
2049         * Once the user has dismissed the notification the alert's state should
2050         * be set to dismissed so it is not fired again.
2051         */
2052        public static final int STATE_DISMISSED = 2;
2053
2054        /**
2055         * The number of minutes that this alarm precedes the start time. Column
2056         * name.
2057         * <P>Type: INTEGER</P>
2058         */
2059        public static final String MINUTES = "minutes";
2060
2061        /**
2062         * The default sort order for this alerts queries
2063         */
2064        public static final String DEFAULT_SORT_ORDER = "begin ASC,title ASC";
2065    }
2066
2067    /**
2068     * Fields and helpers for accessing calendar alerts information. These
2069     * fields are for tracking which alerts have been fired. Scheduled alarms
2070     * will generate an intent using {@link #ACTION_EVENT_REMINDER}. Apps that
2071     * receive this action may update the {@link #STATE} for the reminder when
2072     * they have finished handling it. Apps that have their notifications
2073     * disabled should not modify the table to ensure that they do not conflict
2074     * with another app that is generating a notification. In general, apps
2075     * should not need to write to this table directly except to update the
2076     * state of a reminder.
2077     */
2078    public static final class CalendarAlerts implements BaseColumns,
2079            CalendarAlertsColumns, EventsColumns, CalendarColumns {
2080
2081        /**
2082         * @hide
2083         */
2084        public static final String TABLE_NAME = "CalendarAlerts";
2085        /**
2086         * The Uri for querying calendar alert information
2087         */
2088        @SuppressWarnings("hiding")
2089        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
2090                "/calendar_alerts");
2091
2092        /**
2093         * This utility class cannot be instantiated
2094         */
2095        private CalendarAlerts() {}
2096
2097        private static final String WHERE_ALARM_EXISTS = EVENT_ID + "=?"
2098                + " AND " + BEGIN + "=?"
2099                + " AND " + ALARM_TIME + "=?";
2100
2101        private static final String WHERE_FINDNEXTALARMTIME = ALARM_TIME + ">=?";
2102        private static final String SORT_ORDER_ALARMTIME_ASC = ALARM_TIME + " ASC";
2103
2104        private static final String WHERE_RESCHEDULE_MISSED_ALARMS = STATE + "=" + STATE_SCHEDULED
2105                + " AND " + ALARM_TIME + "<?"
2106                + " AND " + ALARM_TIME + ">?"
2107                + " AND " + END + ">=?";
2108
2109        /**
2110         * This URI is for grouping the query results by event_id and begin
2111         * time.  This will return one result per instance of an event.  So
2112         * events with multiple alarms will appear just once, but multiple
2113         * instances of a repeating event will show up multiple times.
2114         */
2115        public static final Uri CONTENT_URI_BY_INSTANCE =
2116            Uri.parse("content://" + AUTHORITY + "/calendar_alerts/by_instance");
2117
2118        private static final boolean DEBUG = false;
2119
2120        /**
2121         * Helper for inserting an alarm time associated with an event TODO move
2122         * to Provider
2123         *
2124         * @hide
2125         */
2126        public static final Uri insert(ContentResolver cr, long eventId,
2127                long begin, long end, long alarmTime, int minutes) {
2128            ContentValues values = new ContentValues();
2129            values.put(CalendarAlerts.EVENT_ID, eventId);
2130            values.put(CalendarAlerts.BEGIN, begin);
2131            values.put(CalendarAlerts.END, end);
2132            values.put(CalendarAlerts.ALARM_TIME, alarmTime);
2133            long currentTime = System.currentTimeMillis();
2134            values.put(CalendarAlerts.CREATION_TIME, currentTime);
2135            values.put(CalendarAlerts.RECEIVED_TIME, 0);
2136            values.put(CalendarAlerts.NOTIFY_TIME, 0);
2137            values.put(CalendarAlerts.STATE, STATE_SCHEDULED);
2138            values.put(CalendarAlerts.MINUTES, minutes);
2139            return cr.insert(CONTENT_URI, values);
2140        }
2141
2142        /**
2143         * Finds the next alarm after (or equal to) the given time and returns
2144         * the time of that alarm or -1 if no such alarm exists. This is a
2145         * blocking call and should not be done on the UI thread. TODO move to
2146         * provider
2147         *
2148         * @param cr the ContentResolver
2149         * @param millis the time in UTC milliseconds
2150         * @return the next alarm time greater than or equal to "millis", or -1
2151         *         if no such alarm exists.
2152         * @hide
2153         */
2154        public static final long findNextAlarmTime(ContentResolver cr, long millis) {
2155            String selection = ALARM_TIME + ">=" + millis;
2156            // TODO: construct an explicit SQL query so that we can add
2157            // "LIMIT 1" to the end and get just one result.
2158            String[] projection = new String[] { ALARM_TIME };
2159            Cursor cursor = cr.query(CONTENT_URI, projection, WHERE_FINDNEXTALARMTIME,
2160                    (new String[] {
2161                        Long.toString(millis)
2162                    }), SORT_ORDER_ALARMTIME_ASC);
2163            long alarmTime = -1;
2164            try {
2165                if (cursor != null && cursor.moveToFirst()) {
2166                    alarmTime = cursor.getLong(0);
2167                }
2168            } finally {
2169                if (cursor != null) {
2170                    cursor.close();
2171                }
2172            }
2173            return alarmTime;
2174        }
2175
2176        /**
2177         * Searches the CalendarAlerts table for alarms that should have fired
2178         * but have not and then reschedules them. This method can be called at
2179         * boot time to restore alarms that may have been lost due to a phone
2180         * reboot. TODO move to provider
2181         *
2182         * @param cr the ContentResolver
2183         * @param context the Context
2184         * @param manager the AlarmManager
2185         * @hide
2186         */
2187        public static final void rescheduleMissedAlarms(ContentResolver cr,
2188                Context context, AlarmManager manager) {
2189            // Get all the alerts that have been scheduled but have not fired
2190            // and should have fired by now and are not too old.
2191            long now = System.currentTimeMillis();
2192            long ancient = now - DateUtils.DAY_IN_MILLIS;
2193            String[] projection = new String[] {
2194                    ALARM_TIME,
2195            };
2196
2197            // TODO: construct an explicit SQL query so that we can add
2198            // "GROUPBY" instead of doing a sort and de-dup
2199            Cursor cursor = cr.query(CalendarAlerts.CONTENT_URI, projection,
2200                    WHERE_RESCHEDULE_MISSED_ALARMS, (new String[] {
2201                            Long.toString(now), Long.toString(ancient), Long.toString(now)
2202                    }), SORT_ORDER_ALARMTIME_ASC);
2203            if (cursor == null) {
2204                return;
2205            }
2206
2207            if (DEBUG) {
2208                Log.d(TAG, "missed alarms found: " + cursor.getCount());
2209            }
2210
2211            try {
2212                long alarmTime = -1;
2213
2214                while (cursor.moveToNext()) {
2215                    long newAlarmTime = cursor.getLong(0);
2216                    if (alarmTime != newAlarmTime) {
2217                        if (DEBUG) {
2218                            Log.w(TAG, "rescheduling missed alarm. alarmTime: " + newAlarmTime);
2219                        }
2220                        scheduleAlarm(context, manager, newAlarmTime);
2221                        alarmTime = newAlarmTime;
2222                    }
2223                }
2224            } finally {
2225                cursor.close();
2226            }
2227        }
2228
2229        /**
2230         * Schedules an alarm intent with the system AlarmManager that will
2231         * notify listeners when a reminder should be fired. The provider will
2232         * keep scheduled reminders up to date but apps may use this to
2233         * implement snooze functionality without modifying the reminders table.
2234         * Scheduled alarms will generate an intent using
2235         * {@link #ACTION_EVENT_REMINDER}. TODO Move to provider
2236         *
2237         * @param context A context for referencing system resources
2238         * @param manager The AlarmManager to use or null
2239         * @param alarmTime The time to fire the intent in UTC millis since
2240         *            epoch
2241         * @hide
2242         */
2243        public static void scheduleAlarm(Context context, AlarmManager manager, long alarmTime) {
2244            if (DEBUG) {
2245                Time time = new Time();
2246                time.set(alarmTime);
2247                String schedTime = time.format(" %a, %b %d, %Y %I:%M%P");
2248                Log.d(TAG, "Schedule alarm at " + alarmTime + " " + schedTime);
2249            }
2250
2251            if (manager == null) {
2252                manager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
2253            }
2254
2255            Intent intent = new Intent(ACTION_EVENT_REMINDER);
2256            intent.setData(ContentUris.withAppendedId(CalendarContract.CONTENT_URI, alarmTime));
2257            intent.putExtra(ALARM_TIME, alarmTime);
2258            PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0);
2259            manager.set(AlarmManager.RTC_WAKEUP, alarmTime, pi);
2260        }
2261
2262        /**
2263         * Searches for an entry in the CalendarAlerts table that matches the
2264         * given event id, begin time and alarm time. If one is found then this
2265         * alarm already exists and this method returns true. TODO Move to
2266         * provider
2267         *
2268         * @param cr the ContentResolver
2269         * @param eventId the event id to match
2270         * @param begin the start time of the event in UTC millis
2271         * @param alarmTime the alarm time of the event in UTC millis
2272         * @return true if there is already an alarm for the given event with
2273         *         the same start time and alarm time.
2274         * @hide
2275         */
2276        public static final boolean alarmExists(ContentResolver cr, long eventId,
2277                long begin, long alarmTime) {
2278            // TODO: construct an explicit SQL query so that we can add
2279            // "LIMIT 1" to the end and get just one result.
2280            String[] projection = new String[] { ALARM_TIME };
2281            Cursor cursor = cr.query(CONTENT_URI, projection, WHERE_ALARM_EXISTS,
2282                    (new String[] {
2283                            Long.toString(eventId), Long.toString(begin), Long.toString(alarmTime)
2284                    }), null);
2285            boolean found = false;
2286            try {
2287                if (cursor != null && cursor.getCount() > 0) {
2288                    found = true;
2289                }
2290            } finally {
2291                if (cursor != null) {
2292                    cursor.close();
2293                }
2294            }
2295            return found;
2296        }
2297    }
2298
2299    protected interface ColorsColumns extends SyncStateContract.Columns {
2300
2301        /**
2302         * The type of color, which describes how it should be used. Valid types
2303         * are {@link #TYPE_CALENDAR} and {@link #TYPE_EVENT}. Column name.
2304         * <P>
2305         * Type: INTEGER (NOT NULL)
2306         * </P>
2307         */
2308        public static final String COLOR_TYPE = "color_type";
2309
2310        /**
2311         * This indicateds a color that can be used for calendars.
2312         */
2313        public static final int TYPE_CALENDAR = 0;
2314        /**
2315         * This indicates a color that can be used for events.
2316         */
2317        public static final int TYPE_EVENT = 1;
2318
2319        /**
2320         * The key used to reference this color. This can be any non-empty
2321         * string, but must be unique for a given {@link #ACCOUNT_TYPE} and
2322         * {@link #ACCOUNT_NAME}. Column name.
2323         * <P>
2324         * Type: TEXT
2325         * </P>
2326         */
2327        public static final String COLOR_KEY = "color_index";
2328
2329        /**
2330         * The color as an 8-bit ARGB integer value. Colors should specify alpha
2331         * as fully opaque (eg 0xFF993322) as the alpha may be ignored or
2332         * modified for display. It is reccomended that colors be usable with
2333         * light (near white) text. Apps should not depend on that assumption,
2334         * however. Column name.
2335         * <P>
2336         * Type: INTEGER (NOT NULL)
2337         * </P>
2338         */
2339        public static final String COLOR = "color";
2340
2341    }
2342
2343    /**
2344     * Fields for accessing colors available for a given account. Colors are
2345     * referenced by {@link #COLOR_KEY} which must be unique for a given
2346     * account name/type. These values can only be updated by the sync
2347     * adapter. Only {@link #COLOR} may be updated after the initial insert. In
2348     * addition, a row can only be deleted once all references to that color
2349     * have been removed from the {@link Calendars} or {@link Events} tables.
2350     */
2351    public static final class Colors implements ColorsColumns {
2352        /**
2353         * @hide
2354         */
2355        public static final String TABLE_NAME = "Colors";
2356        /**
2357         * The Uri for querying color information
2358         */
2359        @SuppressWarnings("hiding")
2360        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/colors");
2361
2362        /**
2363         * This utility class cannot be instantiated
2364         */
2365        private Colors() {
2366        }
2367    }
2368
2369    protected interface ExtendedPropertiesColumns {
2370        /**
2371         * The event the extended property belongs to. Column name.
2372         * <P>Type: INTEGER (foreign key to the Events table)</P>
2373         */
2374        public static final String EVENT_ID = "event_id";
2375
2376        /**
2377         * The name of the extended property.  This is a uri of the form
2378         * {scheme}#{local-name} convention. Column name.
2379         * <P>Type: TEXT</P>
2380         */
2381        public static final String NAME = "name";
2382
2383        /**
2384         * The value of the extended property. Column name.
2385         * <P>Type: TEXT</P>
2386         */
2387        public static final String VALUE = "value";
2388    }
2389
2390    /**
2391     * Fields for accessing the Extended Properties. This is a generic set of
2392     * name/value pairs for use by sync adapters to add extra
2393     * information to events. There are three writable columns and all three
2394     * must be present when inserting a new value. They are:
2395     * <ul>
2396     * <li>{@link #EVENT_ID}</li>
2397     * <li>{@link #NAME}</li>
2398     * <li>{@link #VALUE}</li>
2399     * </ul>
2400     */
2401   public static final class ExtendedProperties implements BaseColumns,
2402            ExtendedPropertiesColumns, EventsColumns {
2403        public static final Uri CONTENT_URI =
2404                Uri.parse("content://" + AUTHORITY + "/extendedproperties");
2405
2406        /**
2407         * This utility class cannot be instantiated
2408         */
2409        private ExtendedProperties() {}
2410
2411        // TODO: fill out this class when we actually start utilizing extendedproperties
2412        // in the calendar application.
2413   }
2414
2415    /**
2416     * A table provided for sync adapters to use for storing private sync state data.
2417     *
2418     * @see SyncStateContract
2419     */
2420    public static final class SyncState implements SyncStateContract.Columns {
2421        /**
2422         * This utility class cannot be instantiated
2423         */
2424        private SyncState() {}
2425
2426        private static final String CONTENT_DIRECTORY =
2427                SyncStateContract.Constants.CONTENT_DIRECTORY;
2428
2429        /**
2430         * The content:// style URI for this table
2431         */
2432        public static final Uri CONTENT_URI =
2433                Uri.withAppendedPath(CalendarContract.CONTENT_URI, CONTENT_DIRECTORY);
2434    }
2435
2436    /**
2437     * Columns from the EventsRawTimes table
2438     *
2439     * @hide
2440     */
2441    protected interface EventsRawTimesColumns {
2442        /**
2443         * The corresponding event id. Column name.
2444         * <P>Type: INTEGER (long)</P>
2445         */
2446        public static final String EVENT_ID = "event_id";
2447
2448        /**
2449         * The RFC2445 compliant time the event starts. Column name.
2450         * <P>Type: TEXT</P>
2451         */
2452        public static final String DTSTART_2445 = "dtstart2445";
2453
2454        /**
2455         * The RFC2445 compliant time the event ends. Column name.
2456         * <P>Type: TEXT</P>
2457         */
2458        public static final String DTEND_2445 = "dtend2445";
2459
2460        /**
2461         * The RFC2445 compliant original instance time of the recurring event
2462         * for which this event is an exception. Column name.
2463         * <P>Type: TEXT</P>
2464         */
2465        public static final String ORIGINAL_INSTANCE_TIME_2445 = "originalInstanceTime2445";
2466
2467        /**
2468         * The RFC2445 compliant last date this event repeats on, or NULL if it
2469         * never ends. Column name.
2470         * <P>Type: TEXT</P>
2471         */
2472        public static final String LAST_DATE_2445 = "lastDate2445";
2473    }
2474
2475    /**
2476     * @hide
2477     */
2478    public static final class EventsRawTimes implements BaseColumns, EventsRawTimesColumns {
2479
2480        /**
2481         * This utility class cannot be instantiated
2482         */
2483        private EventsRawTimes() {}
2484    }
2485}
2486