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 23 /** 24 * {@link MatrixCursor} which takes an extra {@link Cursor} to the constructor, and close 25 * it when self is closed. 26 */ 27 public class ClosingMatrixCursor extends MatrixCursor { 28 private final Cursor mInnerCursor; 29 ClosingMatrixCursor(String[] columnNames, Cursor innerCursor)30 public ClosingMatrixCursor(String[] columnNames, Cursor innerCursor) { 31 super(columnNames); 32 mInnerCursor = innerCursor; 33 } 34 35 @Override close()36 public void close() { 37 if (mInnerCursor != null) { 38 mInnerCursor.close(); 39 } 40 super.close(); 41 } 42 } 43