19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.database; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.ContentResolver; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.net.Uri; 212589716964f99fd0ee29a9b295584c277e23f34fMakoto Onukiimport android.os.Bundle; 22afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tateimport android.os.UserHandle; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.ref.WeakReference; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.HashMap; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.Map; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is an abstract cursor class that handles a lot of the common code 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that all cursors need to deal with and is provided for convenience reasons. 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbstractCursor implements CrossProcessCursor { 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String TAG = "Cursor"; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown /** 38fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown * @deprecated This is never updated by this class and should not be used 39fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown */ 40fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown @Deprecated 41fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected HashMap<Long, Map<String, Object>> mUpdatedRows; 42fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 43fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected int mPos; 44fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 45fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown /** 46fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown * This must be set to the index of the row ID column by any 47fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown * subclass that wishes to support updates. 487873d5b3ff587ffff33dae628aaa581b099db61eJeff Brown * 497873d5b3ff587ffff33dae628aaa581b099db61eJeff Brown * @deprecated This field should not be used. 50fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown */ 517873d5b3ff587ffff33dae628aaa581b099db61eJeff Brown @Deprecated 52fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected int mRowIdColumnIndex; 53fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 54fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown /** 55fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown * If {@link #mRowIdColumnIndex} is not -1 this contains contains the value of 56fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown * the column at {@link #mRowIdColumnIndex} for the current row this cursor is 57fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown * pointing at. 587873d5b3ff587ffff33dae628aaa581b099db61eJeff Brown * 597873d5b3ff587ffff33dae628aaa581b099db61eJeff Brown * @deprecated This field should not be used. 60fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown */ 617873d5b3ff587ffff33dae628aaa581b099db61eJeff Brown @Deprecated 62fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected Long mCurrentRowID; 63fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 64fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected boolean mClosed; 65fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected ContentResolver mContentResolver; 66fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown private Uri mNotifyUri; 67fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 68fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown private final Object mSelfObserverLock = new Object(); 69fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown private ContentObserver mSelfObserver; 70fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown private boolean mSelfObserverRegistered; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 727873d5b3ff587ffff33dae628aaa581b099db61eJeff Brown private final DataSetObservable mDataSetObservable = new DataSetObservable(); 737873d5b3ff587ffff33dae628aaa581b099db61eJeff Brown private final ContentObservable mContentObservable = new ContentObservable(); 74fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 75fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown private Bundle mExtras = Bundle.EMPTY; 76630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* -------------------------------------------------------- */ 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* These need to be implemented by subclasses */ 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public int getCount(); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public String[] getColumnNames(); 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public String getString(int column); 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public short getShort(int column); 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public int getInt(int column); 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public long getLong(int column); 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public float getFloat(int column); 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public double getDouble(int column); 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public boolean isNull(int column); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 918b0dd7da360d70920a37802eb455ba41500d3b45Vasu Nori public int getType(int column) { 9280e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown // Reflects the assumption that all commonly used field types (meaning everything 9380e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown // but blobs) are convertible to strings so it should be safe to call 9480e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown // getString to retrieve them. 9580e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown return FIELD_TYPE_STRING; 968b0dd7da360d70920a37802eb455ba41500d3b45Vasu Nori } 978b0dd7da360d70920a37802eb455ba41500d3b45Vasu Nori 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO implement getBlob in all cursor types 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public byte[] getBlob(int column) { 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new UnsupportedOperationException("getBlob is not supported"); 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* -------------------------------------------------------- */ 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Methods that may optionally be implemented by subclasses */ 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1067ce745248d4de0e6543a559c93423df899832100Jeff Brown * If the cursor is backed by a {@link CursorWindow}, returns a pre-filled 1077ce745248d4de0e6543a559c93423df899832100Jeff Brown * window with the contents of the cursor, otherwise null. 1087ce745248d4de0e6543a559c93423df899832100Jeff Brown * 1097ce745248d4de0e6543a559c93423df899832100Jeff Brown * @return The pre-filled window that backs this cursor, or null if none. 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CursorWindow getWindow() { 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getColumnCount() { 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getColumnNames().length; 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 118630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void deactivate() { 120d2183654e03d589b120467f4e98da1b178ceeadbJeff Brown onDeactivateOrClose(); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 122630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 123d2183654e03d589b120467f4e98da1b178ceeadbJeff Brown /** @hide */ 124d2183654e03d589b120467f4e98da1b178ceeadbJeff Brown protected void onDeactivateOrClose() { 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelfObserver != null) { 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver.unregisterContentObserver(mSelfObserver); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelfObserverRegistered = false; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObservable.notifyInvalidated(); 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13120f549fd2f40db524242c9038d7d63356adf95fcVasu Nori 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean requery() { 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelfObserver != null && mSelfObserverRegistered == false) { 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver.registerContentObserver(mNotifyUri, true, mSelfObserver); 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelfObserverRegistered = true; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObservable.notifyChanged(); 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isClosed() { 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mClosed; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 144630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void close() { 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mClosed = true; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentObservable.unregisterAll(); 148d2183654e03d589b120467f4e98da1b178ceeadbJeff Brown onDeactivateOrClose(); 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This function is called every time the cursor is successfully scrolled 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to a new position, giving the subclass a chance to update any state it 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * may have. If it returns false the move function will also do so and the 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * cursor will scroll to the beforeFirst position. 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oldPosition the position that we're moving from 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newPosition the position that we're moving to 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the move is successful, false otherwise 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onMove(int oldPosition, int newPosition) { 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 165630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void copyStringToBuffer(int columnIndex, CharArrayBuffer buffer) { 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default implementation, uses getString 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String result = getString(columnIndex); 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (result != null) { 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] data = buffer.data; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (data == null || data.length < result.length()) { 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer.data = result.toCharArray(); 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result.getChars(0, result.length(), data, 0); 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer.sizeCopied = result.length(); 1779480efeff7d6d7054e4d048c6088b7329376aa1dDmitri Plotnikov } else { 1789480efeff7d6d7054e4d048c6088b7329376aa1dDmitri Plotnikov buffer.sizeCopied = 0; 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 181630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* -------------------------------------------------------- */ 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Implementation */ 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbstractCursor() { 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPos = -1; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRowIdColumnIndex = -1; 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentRowID = null; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mUpdatedRows = new HashMap<Long, Map<String, Object>>(); 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getPosition() { 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPos; 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean moveToPosition(int position) { 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure position isn't past the end of the cursor 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getCount(); 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= count) { 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPos = count; 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure position isn't before the beginning of the cursor 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPos = -1; 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check for no-op moves, and skip the rest of the work for them 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position == mPos) { 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean result = onMove(mPos, position); 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (result == false) { 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPos = -1; 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPos = position; 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRowIdColumnIndex != -1) { 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentRowID = Long.valueOf(getLong(mRowIdColumnIndex)); 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return result; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 226630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 22780e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown @Override 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void fillWindow(int position, CursorWindow window) { 22980e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown DatabaseUtils.cursorFillWindow(this, position, window); 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean move(int offset) { 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return moveToPosition(mPos + offset); 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean moveToFirst() { 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return moveToPosition(0); 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean moveToLast() { 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return moveToPosition(getCount() - 1); 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean moveToNext() { 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return moveToPosition(mPos + 1); 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean moveToPrevious() { 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return moveToPosition(mPos - 1); 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isFirst() { 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPos == 0 && getCount() != 0; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isLast() { 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int cnt = getCount(); 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPos == (cnt - 1) && cnt != 0; 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isBeforeFirst() { 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getCount() == 0) { 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPos == -1; 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isAfterLast() { 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getCount() == 0) { 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPos == getCount(); 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getColumnIndex(String columnName) { 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hack according to bug 903852 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int periodIndex = columnName.lastIndexOf('.'); 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (periodIndex != -1) { 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Exception e = new Exception(); 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "requesting column name with table name -- " + columnName, e); 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project columnName = columnName.substring(periodIndex + 1); 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String columnNames[] = getColumnNames(); 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = columnNames.length; 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < length; i++) { 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (columnNames[i].equalsIgnoreCase(columnName)) { 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return i; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29243a17654cf4bfe7f1ec22bd8b7b32daccdf27c09Joe Onorato if (false) { 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getCount() > 0) { 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.w("AbstractCursor", "Unknown column " + columnName); 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getColumnIndexOrThrow(String columnName) { 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int index = getColumnIndex(columnName); 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0) { 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("column '" + columnName + "' does not exist"); 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return index; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String getColumnName(int columnIndex) { 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getColumnNames()[columnIndex]; 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void registerContentObserver(ContentObserver observer) { 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentObservable.registerObserver(observer); 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void unregisterContentObserver(ContentObserver observer) { 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // cursor will unregister all observers when it close 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mClosed) { 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentObservable.unregisterObserver(observer); 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 322630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void registerDataSetObserver(DataSetObserver observer) { 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObservable.registerObserver(observer); 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void unregisterDataSetObserver(DataSetObserver observer) { 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObservable.unregisterObserver(observer); 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must call this method when they finish committing updates to notify all 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * observers. 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param selfChange 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onChange(boolean selfChange) { 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (mSelfObserverLock) { 339655e66bceba7595a2b80e7a328433e6ed5dc28a9Jeff Brown mContentObservable.dispatchChange(selfChange, null); 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNotifyUri != null && selfChange) { 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver.notifyChange(mNotifyUri, mSelfObserver); 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Specifies a content URI to watch for changes. 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cr The content resolver from the caller's context. 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param notifyUri The URI to watch for changes. This can be a 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specific row URI, or a base URI for a whole class of content. 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setNotificationUri(ContentResolver cr, Uri notifyUri) { 354afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate setNotificationUri(cr, notifyUri, UserHandle.myUserId()); 355afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate } 356afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate 357afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate /** @hide - set the notification uri but with an observer for a particular user's view */ 358afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate public void setNotificationUri(ContentResolver cr, Uri notifyUri, int userHandle) { 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (mSelfObserverLock) { 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNotifyUri = notifyUri; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver = cr; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelfObserver != null) { 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver.unregisterContentObserver(mSelfObserver); 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelfObserver = new SelfContentObserver(this); 366afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate mContentResolver.registerContentObserver(mNotifyUri, true, mSelfObserver, userHandle); 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelfObserverRegistered = true; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37190bf7c791639fe6666fc548106f9286d47311cffMakoto Onuki public Uri getNotificationUri() { 37290bf7c791639fe6666fc548106f9286d47311cffMakoto Onuki return mNotifyUri; 37390bf7c791639fe6666fc548106f9286d47311cffMakoto Onuki } 37490bf7c791639fe6666fc548106f9286d47311cffMakoto Onuki 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getWantsAllOnMoveCalls() { 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki /** 380630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki * Sets a {@link Bundle} that will be returned by {@link #getExtras()}. <code>null</code> will 381630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki * be converted into {@link Bundle#EMPTY}. 382630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki * 383630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki * @param extras {@link Bundle} to set. 384630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki * @hide 385630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki */ 386630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki public void setExtras(Bundle extras) { 387630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki mExtras = (extras == null) ? Bundle.EMPTY : extras; 388630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki } 389630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bundle getExtras() { 391630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki return mExtras; 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bundle respond(Bundle extras) { 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return Bundle.EMPTY; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 399f1a4a0a5b712963b77bf019886cf73cf6bc1b7b4Jeff Hamilton * @deprecated Always returns false since Cursors do not support updating rows 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 401f1a4a0a5b712963b77bf019886cf73cf6bc1b7b4Jeff Hamilton @Deprecated 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isFieldUpdated(int columnIndex) { 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 407f1a4a0a5b712963b77bf019886cf73cf6bc1b7b4Jeff Hamilton * @deprecated Always returns null since Cursors do not support updating rows 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 409f1a4a0a5b712963b77bf019886cf73cf6bc1b7b4Jeff Hamilton @Deprecated 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected Object getUpdatedField(int columnIndex) { 411f1a4a0a5b712963b77bf019886cf73cf6bc1b7b4Jeff Hamilton return null; 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This function throws CursorIndexOutOfBoundsException if 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the cursor position is out of bounds. Subclass implementations of 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the get functions should call this before attempting 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to retrieve data. 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws CursorIndexOutOfBoundsException 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void checkPosition() { 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (-1 == mPos || getCount() == mPos) { 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new CursorIndexOutOfBoundsException(mPos, getCount()); 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void finalize() { 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelfObserver != null && mSelfObserverRegistered == true) { 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver.unregisterContentObserver(mSelfObserver); 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4333f824c0e72ad8cde2dc9b0f4d4d7b621b5535e62Catherine Liu try { 4343f824c0e72ad8cde2dc9b0f4d4d7b621b5535e62Catherine Liu if (!mClosed) close(); 4353f824c0e72ad8cde2dc9b0f4d4d7b621b5535e62Catherine Liu } catch(Exception e) { } 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Cursors use this class to track changes others make to their URI. 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected static class SelfContentObserver extends ContentObserver { 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project WeakReference<AbstractCursor> mCursor; 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SelfContentObserver(AbstractCursor cursor) { 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(null); 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCursor = new WeakReference<AbstractCursor>(cursor); 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean deliverSelfNotifications() { 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onChange(boolean selfChange) { 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbstractCursor cursor = mCursor.get(); 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (cursor != null) { 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cursor.onChange(false); 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 463