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.database; 18 19import android.content.ContentResolver; 20import android.net.Uri; 21import android.os.Bundle; 22 23/** 24 * Wrapper class for Cursor that delegates all calls to the actual cursor object. The primary 25 * use for this class is to extend a cursor while overriding only a subset of its methods. 26 */ 27public class CursorWrapper implements Cursor { 28 /** @hide */ 29 protected final Cursor mCursor; 30 31 /** 32 * Creates a cursor wrapper. 33 * @param cursor The underlying cursor to wrap. 34 */ 35 public CursorWrapper(Cursor cursor) { 36 mCursor = cursor; 37 } 38 39 /** 40 * Gets the underlying cursor that is wrapped by this instance. 41 * 42 * @return The wrapped cursor. 43 */ 44 public Cursor getWrappedCursor() { 45 return mCursor; 46 } 47 48 public void close() { 49 mCursor.close(); 50 } 51 52 public boolean isClosed() { 53 return mCursor.isClosed(); 54 } 55 56 public int getCount() { 57 return mCursor.getCount(); 58 } 59 60 public void deactivate() { 61 mCursor.deactivate(); 62 } 63 64 public boolean moveToFirst() { 65 return mCursor.moveToFirst(); 66 } 67 68 public int getColumnCount() { 69 return mCursor.getColumnCount(); 70 } 71 72 public int getColumnIndex(String columnName) { 73 return mCursor.getColumnIndex(columnName); 74 } 75 76 public int getColumnIndexOrThrow(String columnName) 77 throws IllegalArgumentException { 78 return mCursor.getColumnIndexOrThrow(columnName); 79 } 80 81 public String getColumnName(int columnIndex) { 82 return mCursor.getColumnName(columnIndex); 83 } 84 85 public String[] getColumnNames() { 86 return mCursor.getColumnNames(); 87 } 88 89 public double getDouble(int columnIndex) { 90 return mCursor.getDouble(columnIndex); 91 } 92 93 public Bundle getExtras() { 94 return mCursor.getExtras(); 95 } 96 97 public float getFloat(int columnIndex) { 98 return mCursor.getFloat(columnIndex); 99 } 100 101 public int getInt(int columnIndex) { 102 return mCursor.getInt(columnIndex); 103 } 104 105 public long getLong(int columnIndex) { 106 return mCursor.getLong(columnIndex); 107 } 108 109 public short getShort(int columnIndex) { 110 return mCursor.getShort(columnIndex); 111 } 112 113 public String getString(int columnIndex) { 114 return mCursor.getString(columnIndex); 115 } 116 117 public void copyStringToBuffer(int columnIndex, CharArrayBuffer buffer) { 118 mCursor.copyStringToBuffer(columnIndex, buffer); 119 } 120 121 public byte[] getBlob(int columnIndex) { 122 return mCursor.getBlob(columnIndex); 123 } 124 125 public boolean getWantsAllOnMoveCalls() { 126 return mCursor.getWantsAllOnMoveCalls(); 127 } 128 129 public boolean isAfterLast() { 130 return mCursor.isAfterLast(); 131 } 132 133 public boolean isBeforeFirst() { 134 return mCursor.isBeforeFirst(); 135 } 136 137 public boolean isFirst() { 138 return mCursor.isFirst(); 139 } 140 141 public boolean isLast() { 142 return mCursor.isLast(); 143 } 144 145 public int getType(int columnIndex) { 146 return mCursor.getType(columnIndex); 147 } 148 149 public boolean isNull(int columnIndex) { 150 return mCursor.isNull(columnIndex); 151 } 152 153 public boolean moveToLast() { 154 return mCursor.moveToLast(); 155 } 156 157 public boolean move(int offset) { 158 return mCursor.move(offset); 159 } 160 161 public boolean moveToPosition(int position) { 162 return mCursor.moveToPosition(position); 163 } 164 165 public boolean moveToNext() { 166 return mCursor.moveToNext(); 167 } 168 169 public int getPosition() { 170 return mCursor.getPosition(); 171 } 172 173 public boolean moveToPrevious() { 174 return mCursor.moveToPrevious(); 175 } 176 177 public void registerContentObserver(ContentObserver observer) { 178 mCursor.registerContentObserver(observer); 179 } 180 181 public void registerDataSetObserver(DataSetObserver observer) { 182 mCursor.registerDataSetObserver(observer); 183 } 184 185 public boolean requery() { 186 return mCursor.requery(); 187 } 188 189 public Bundle respond(Bundle extras) { 190 return mCursor.respond(extras); 191 } 192 193 public void setNotificationUri(ContentResolver cr, Uri uri) { 194 mCursor.setNotificationUri(cr, uri); 195 } 196 197 public void unregisterContentObserver(ContentObserver observer) { 198 mCursor.unregisterContentObserver(observer); 199 } 200 201 public void unregisterDataSetObserver(DataSetObserver observer) { 202 mCursor.unregisterDataSetObserver(observer); 203 } 204} 205 206