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 /** 384670513e70f8d55e40a359941e7c216604daae19Jeff Brown * @removed This field should not be used. 39fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown */ 40fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected HashMap<Long, Map<String, Object>> mUpdatedRows; 41fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 42fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown /** 434670513e70f8d55e40a359941e7c216604daae19Jeff Brown * @removed This field should not be used. 44fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown */ 45fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected int mRowIdColumnIndex; 46fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 47fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown /** 484670513e70f8d55e40a359941e7c216604daae19Jeff Brown * @removed This field should not be used. 49fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown */ 50fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected Long mCurrentRowID; 51fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 528faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown /** 538faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown * @deprecated Use {@link #getPosition()} instead. 548faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown */ 558faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Deprecated 564670513e70f8d55e40a359941e7c216604daae19Jeff Brown protected int mPos; 578faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown 588faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown /** 598faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown * @deprecated Use {@link #isClosed()} instead. 608faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown */ 618faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Deprecated 62fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected boolean mClosed; 638faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown 648faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown /** 658faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown * @deprecated Do not use. 668faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown */ 678faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Deprecated 68fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown protected ContentResolver mContentResolver; 698faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown 70fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown private Uri mNotifyUri; 71fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 72fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown private final Object mSelfObserverLock = new Object(); 73fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown private ContentObserver mSelfObserver; 74fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown private boolean mSelfObserverRegistered; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 767873d5b3ff587ffff33dae628aaa581b099db61eJeff Brown private final DataSetObservable mDataSetObservable = new DataSetObservable(); 777873d5b3ff587ffff33dae628aaa581b099db61eJeff Brown private final ContentObservable mContentObservable = new ContentObservable(); 78fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown 79fb5a4964b8d402b39754f406dd2255035ff2148dJeff Brown private Bundle mExtras = Bundle.EMPTY; 80630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* -------------------------------------------------------- */ 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* These need to be implemented by subclasses */ 838faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public int getCount(); 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 868faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public String[] getColumnNames(); 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 898faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public String getString(int column); 918faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public short getShort(int column); 938faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public int getInt(int column); 958faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public long getLong(int column); 978faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public float getFloat(int column); 998faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public double getDouble(int column); 1018faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract public boolean isNull(int column); 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1048faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1058b0dd7da360d70920a37802eb455ba41500d3b45Vasu Nori public int getType(int column) { 10680e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown // Reflects the assumption that all commonly used field types (meaning everything 10780e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown // but blobs) are convertible to strings so it should be safe to call 10880e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown // getString to retrieve them. 10980e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown return FIELD_TYPE_STRING; 1108b0dd7da360d70920a37802eb455ba41500d3b45Vasu Nori } 1118b0dd7da360d70920a37802eb455ba41500d3b45Vasu Nori 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO implement getBlob in all cursor types 1138faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public byte[] getBlob(int column) { 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new UnsupportedOperationException("getBlob is not supported"); 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* -------------------------------------------------------- */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Methods that may optionally be implemented by subclasses */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1217ce745248d4de0e6543a559c93423df899832100Jeff Brown * If the cursor is backed by a {@link CursorWindow}, returns a pre-filled 1227ce745248d4de0e6543a559c93423df899832100Jeff Brown * window with the contents of the cursor, otherwise null. 1237ce745248d4de0e6543a559c93423df899832100Jeff Brown * 1247ce745248d4de0e6543a559c93423df899832100Jeff Brown * @return The pre-filled window that backs this cursor, or null if none. 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1268faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CursorWindow getWindow() { 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1318faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getColumnCount() { 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getColumnNames().length; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 135630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 1368faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void deactivate() { 138d2183654e03d589b120467f4e98da1b178ceeadbJeff Brown onDeactivateOrClose(); 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 140630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 141d2183654e03d589b120467f4e98da1b178ceeadbJeff Brown /** @hide */ 142d2183654e03d589b120467f4e98da1b178ceeadbJeff Brown protected void onDeactivateOrClose() { 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelfObserver != null) { 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver.unregisterContentObserver(mSelfObserver); 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelfObserverRegistered = false; 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObservable.notifyInvalidated(); 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14920f549fd2f40db524242c9038d7d63356adf95fcVasu Nori 1508faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean requery() { 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelfObserver != null && mSelfObserverRegistered == false) { 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver.registerContentObserver(mNotifyUri, true, mSelfObserver); 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelfObserverRegistered = true; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObservable.notifyChanged(); 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1608faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isClosed() { 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mClosed; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 164630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 1658faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void close() { 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mClosed = true; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentObservable.unregisterAll(); 169d2183654e03d589b120467f4e98da1b178ceeadbJeff Brown onDeactivateOrClose(); 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This function is called every time the cursor is successfully scrolled 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to a new position, giving the subclass a chance to update any state it 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * may have. If it returns false the move function will also do so and the 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * cursor will scroll to the beforeFirst position. 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oldPosition the position that we're moving from 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newPosition the position that we're moving to 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the move is successful, false otherwise 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1828faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onMove(int oldPosition, int newPosition) { 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 187630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 1888faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void copyStringToBuffer(int columnIndex, CharArrayBuffer buffer) { 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default implementation, uses getString 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String result = getString(columnIndex); 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (result != null) { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] data = buffer.data; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (data == null || data.length < result.length()) { 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer.data = result.toCharArray(); 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result.getChars(0, result.length(), data, 0); 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer.sizeCopied = result.length(); 2009480efeff7d6d7054e4d048c6088b7329376aa1dDmitri Plotnikov } else { 2019480efeff7d6d7054e4d048c6088b7329376aa1dDmitri Plotnikov buffer.sizeCopied = 0; 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 204630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* -------------------------------------------------------- */ 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Implementation */ 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbstractCursor() { 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPos = -1; 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2118faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getPosition() { 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPos; 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2168faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean moveToPosition(int position) { 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure position isn't past the end of the cursor 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getCount(); 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= count) { 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPos = count; 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure position isn't before the beginning of the cursor 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPos = -1; 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check for no-op moves, and skip the rest of the work for them 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position == mPos) { 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean result = onMove(mPos, position); 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (result == false) { 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPos = -1; 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPos = position; 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return result; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 245630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 24680e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown @Override 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void fillWindow(int position, CursorWindow window) { 24880e7b80fa607e13d31d7dab68ddfd4d9f0372e38Jeff Brown DatabaseUtils.cursorFillWindow(this, position, window); 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2518faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean move(int offset) { 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return moveToPosition(mPos + offset); 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2568faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean moveToFirst() { 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return moveToPosition(0); 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2618faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean moveToLast() { 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return moveToPosition(getCount() - 1); 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2668faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean moveToNext() { 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return moveToPosition(mPos + 1); 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2718faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean moveToPrevious() { 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return moveToPosition(mPos - 1); 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2768faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isFirst() { 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPos == 0 && getCount() != 0; 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2818faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isLast() { 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int cnt = getCount(); 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPos == (cnt - 1) && cnt != 0; 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2878faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isBeforeFirst() { 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getCount() == 0) { 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPos == -1; 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2958faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isAfterLast() { 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getCount() == 0) { 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPos == getCount(); 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3038faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getColumnIndex(String columnName) { 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hack according to bug 903852 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int periodIndex = columnName.lastIndexOf('.'); 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (periodIndex != -1) { 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Exception e = new Exception(); 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "requesting column name with table name -- " + columnName, e); 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project columnName = columnName.substring(periodIndex + 1); 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String columnNames[] = getColumnNames(); 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = columnNames.length; 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < length; i++) { 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (columnNames[i].equalsIgnoreCase(columnName)) { 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return i; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32143a17654cf4bfe7f1ec22bd8b7b32daccdf27c09Joe Onorato if (false) { 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getCount() > 0) { 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.w("AbstractCursor", "Unknown column " + columnName); 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3298faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getColumnIndexOrThrow(String columnName) { 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int index = getColumnIndex(columnName); 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0) { 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("column '" + columnName + "' does not exist"); 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return index; 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3388faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String getColumnName(int columnIndex) { 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getColumnNames()[columnIndex]; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3438faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void registerContentObserver(ContentObserver observer) { 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentObservable.registerObserver(observer); 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3488faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void unregisterContentObserver(ContentObserver observer) { 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // cursor will unregister all observers when it close 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mClosed) { 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentObservable.unregisterObserver(observer); 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 355630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 3568faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void registerDataSetObserver(DataSetObserver observer) { 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObservable.registerObserver(observer); 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3618faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void unregisterDataSetObserver(DataSetObserver observer) { 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObservable.unregisterObserver(observer); 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must call this method when they finish committing updates to notify all 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * observers. 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param selfChange 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onChange(boolean selfChange) { 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (mSelfObserverLock) { 374655e66bceba7595a2b80e7a328433e6ed5dc28a9Jeff Brown mContentObservable.dispatchChange(selfChange, null); 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNotifyUri != null && selfChange) { 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver.notifyChange(mNotifyUri, mSelfObserver); 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Specifies a content URI to watch for changes. 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cr The content resolver from the caller's context. 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param notifyUri The URI to watch for changes. This can be a 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specific row URI, or a base URI for a whole class of content. 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3888faab36fdd2d7dd038885a5073eeb8354d8996d4Jeff Brown @Override 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setNotificationUri(ContentResolver cr, Uri notifyUri) { 390afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate setNotificationUri(cr, notifyUri, UserHandle.myUserId()); 391afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate } 392afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate 393afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate /** @hide - set the notification uri but with an observer for a particular user's view */ 394afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate public void setNotificationUri(ContentResolver cr, Uri notifyUri, int userHandle) { 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (mSelfObserverLock) { 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNotifyUri = notifyUri; 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver = cr; 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelfObserver != null) { 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver.unregisterContentObserver(mSelfObserver); 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelfObserver = new SelfContentObserver(this); 402afccaa84c8d1b9aa45040ddeb0edd42ba80e80d6Christopher Tate mContentResolver.registerContentObserver(mNotifyUri, true, mSelfObserver, userHandle); 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelfObserverRegistered = true; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4074e0951ef7a2bb492fd1255b83eba00b1b0556290Jeff Brown @Override 40890bf7c791639fe6666fc548106f9286d47311cffMakoto Onuki public Uri getNotificationUri() { 409c87c92e079b9aff771ac0810fc86def81654dbdaDianne Hackborn synchronized (mSelfObserverLock) { 410c87c92e079b9aff771ac0810fc86def81654dbdaDianne Hackborn return mNotifyUri; 411c87c92e079b9aff771ac0810fc86def81654dbdaDianne Hackborn } 41290bf7c791639fe6666fc548106f9286d47311cffMakoto Onuki } 41390bf7c791639fe6666fc548106f9286d47311cffMakoto Onuki 4144e0951ef7a2bb492fd1255b83eba00b1b0556290Jeff Brown @Override 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getWantsAllOnMoveCalls() { 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4194e0951ef7a2bb492fd1255b83eba00b1b0556290Jeff Brown @Override 420630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki public void setExtras(Bundle extras) { 421630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki mExtras = (extras == null) ? Bundle.EMPTY : extras; 422630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki } 423630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki 4244e0951ef7a2bb492fd1255b83eba00b1b0556290Jeff Brown @Override 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bundle getExtras() { 426630f6b1cf8a671890f7bb590f5219d8b63614cd9Makoto Onuki return mExtras; 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4294e0951ef7a2bb492fd1255b83eba00b1b0556290Jeff Brown @Override 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bundle respond(Bundle extras) { 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return Bundle.EMPTY; 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 435f1a4a0a5b712963b77bf019886cf73cf6bc1b7b4Jeff Hamilton * @deprecated Always returns false since Cursors do not support updating rows 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 437f1a4a0a5b712963b77bf019886cf73cf6bc1b7b4Jeff Hamilton @Deprecated 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isFieldUpdated(int columnIndex) { 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 443f1a4a0a5b712963b77bf019886cf73cf6bc1b7b4Jeff Hamilton * @deprecated Always returns null since Cursors do not support updating rows 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 445f1a4a0a5b712963b77bf019886cf73cf6bc1b7b4Jeff Hamilton @Deprecated 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected Object getUpdatedField(int columnIndex) { 447f1a4a0a5b712963b77bf019886cf73cf6bc1b7b4Jeff Hamilton return null; 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This function throws CursorIndexOutOfBoundsException if 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the cursor position is out of bounds. Subclass implementations of 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the get functions should call this before attempting 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to retrieve data. 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws CursorIndexOutOfBoundsException 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void checkPosition() { 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (-1 == mPos || getCount() == mPos) { 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new CursorIndexOutOfBoundsException(mPos, getCount()); 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void finalize() { 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelfObserver != null && mSelfObserverRegistered == true) { 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContentResolver.unregisterContentObserver(mSelfObserver); 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4693f824c0e72ad8cde2dc9b0f4d4d7b621b5535e62Catherine Liu try { 4703f824c0e72ad8cde2dc9b0f4d4d7b621b5535e62Catherine Liu if (!mClosed) close(); 4713f824c0e72ad8cde2dc9b0f4d4d7b621b5535e62Catherine Liu } catch(Exception e) { } 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Cursors use this class to track changes others make to their URI. 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected static class SelfContentObserver extends ContentObserver { 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project WeakReference<AbstractCursor> mCursor; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SelfContentObserver(AbstractCursor cursor) { 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(null); 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCursor = new WeakReference<AbstractCursor>(cursor); 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean deliverSelfNotifications() { 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onChange(boolean selfChange) { 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbstractCursor cursor = mCursor.get(); 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (cursor != null) { 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cursor.onChange(false); 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 499