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    @Override
49    public void close() {
50        mCursor.close();
51    }
52
53    @Override
54    public boolean isClosed() {
55        return mCursor.isClosed();
56    }
57
58    @Override
59    public int getCount() {
60        return mCursor.getCount();
61    }
62
63    @Override
64    @Deprecated
65    public void deactivate() {
66        mCursor.deactivate();
67    }
68
69    @Override
70    public boolean moveToFirst() {
71        return mCursor.moveToFirst();
72    }
73
74    @Override
75    public int getColumnCount() {
76        return mCursor.getColumnCount();
77    }
78
79    @Override
80    public int getColumnIndex(String columnName) {
81        return mCursor.getColumnIndex(columnName);
82    }
83
84    @Override
85    public int getColumnIndexOrThrow(String columnName)
86            throws IllegalArgumentException {
87        return mCursor.getColumnIndexOrThrow(columnName);
88    }
89
90    @Override
91    public String getColumnName(int columnIndex) {
92         return mCursor.getColumnName(columnIndex);
93    }
94
95    @Override
96    public String[] getColumnNames() {
97        return mCursor.getColumnNames();
98    }
99
100    @Override
101    public double getDouble(int columnIndex) {
102        return mCursor.getDouble(columnIndex);
103    }
104
105    @Override
106    public void setExtras(Bundle extras) {
107        mCursor.setExtras(extras);
108    }
109
110    @Override
111    public Bundle getExtras() {
112        return mCursor.getExtras();
113    }
114
115    @Override
116    public float getFloat(int columnIndex) {
117        return mCursor.getFloat(columnIndex);
118    }
119
120    @Override
121    public int getInt(int columnIndex) {
122        return mCursor.getInt(columnIndex);
123    }
124
125    @Override
126    public long getLong(int columnIndex) {
127        return mCursor.getLong(columnIndex);
128    }
129
130    @Override
131    public short getShort(int columnIndex) {
132        return mCursor.getShort(columnIndex);
133    }
134
135    @Override
136    public String getString(int columnIndex) {
137        return mCursor.getString(columnIndex);
138    }
139
140    @Override
141    public void copyStringToBuffer(int columnIndex, CharArrayBuffer buffer) {
142        mCursor.copyStringToBuffer(columnIndex, buffer);
143    }
144
145    @Override
146    public byte[] getBlob(int columnIndex) {
147        return mCursor.getBlob(columnIndex);
148    }
149
150    @Override
151    public boolean getWantsAllOnMoveCalls() {
152        return mCursor.getWantsAllOnMoveCalls();
153    }
154
155    @Override
156    public boolean isAfterLast() {
157        return mCursor.isAfterLast();
158    }
159
160    @Override
161    public boolean isBeforeFirst() {
162        return mCursor.isBeforeFirst();
163    }
164
165    @Override
166    public boolean isFirst() {
167        return mCursor.isFirst();
168    }
169
170    @Override
171    public boolean isLast() {
172        return mCursor.isLast();
173    }
174
175    @Override
176    public int getType(int columnIndex) {
177        return mCursor.getType(columnIndex);
178    }
179
180    @Override
181    public boolean isNull(int columnIndex) {
182        return mCursor.isNull(columnIndex);
183    }
184
185    @Override
186    public boolean moveToLast() {
187        return mCursor.moveToLast();
188    }
189
190    @Override
191    public boolean move(int offset) {
192        return mCursor.move(offset);
193    }
194
195    @Override
196    public boolean moveToPosition(int position) {
197        return mCursor.moveToPosition(position);
198    }
199
200    @Override
201    public boolean moveToNext() {
202        return mCursor.moveToNext();
203    }
204
205    @Override
206    public int getPosition() {
207        return mCursor.getPosition();
208    }
209
210    @Override
211    public boolean moveToPrevious() {
212        return mCursor.moveToPrevious();
213    }
214
215    @Override
216    public void registerContentObserver(ContentObserver observer) {
217        mCursor.registerContentObserver(observer);
218    }
219
220    @Override
221    public void registerDataSetObserver(DataSetObserver observer) {
222        mCursor.registerDataSetObserver(observer);
223    }
224
225    @Override
226    @Deprecated
227    public boolean requery() {
228        return mCursor.requery();
229    }
230
231    @Override
232    public Bundle respond(Bundle extras) {
233        return mCursor.respond(extras);
234    }
235
236    @Override
237    public void setNotificationUri(ContentResolver cr, Uri uri) {
238        mCursor.setNotificationUri(cr, uri);
239    }
240
241    @Override
242    public Uri getNotificationUri() {
243        return mCursor.getNotificationUri();
244    }
245
246    @Override
247    public void unregisterContentObserver(ContentObserver observer) {
248        mCursor.unregisterContentObserver(observer);
249    }
250
251    @Override
252    public void unregisterDataSetObserver(DataSetObserver observer) {
253        mCursor.unregisterDataSetObserver(observer);
254    }
255}
256
257