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 17 package com.android.email.data; 18 19 import android.database.Cursor; 20 import android.database.MatrixCursor; 21 22 import 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 */ 28 public 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
