1/*
2 * Copyright (C) 2011 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 com.android.email.data;
18
19import android.database.Cursor;
20import android.database.MatrixCursor;
21
22import com.android.mail.utils.MatrixCursorWithCachedColumns;
23
24/**
25 * {@link MatrixCursor} which takes an extra {@link Cursor} to the constructor, and close
26 * it when self is closed.
27 */
28public class ClosingMatrixCursor extends MatrixCursorWithCachedColumns {
29    private final Cursor mInnerCursor;
30
31    public ClosingMatrixCursor(String[] columnNames, Cursor innerCursor) {
32        super(columnNames);
33        mInnerCursor = innerCursor;
34    }
35
36    @Override
37    public void close() {
38        if (mInnerCursor != null) {
39            mInnerCursor.close();
40        }
41        super.close();
42    }
43}
44