ForwardingBufferQueue.java revision b8397360d318edf3093b20b2b102207d76730e1b 
1/*
2 * Copyright (C) 2014 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.camera.async;
18
19import java.util.concurrent.TimeUnit;
20import java.util.concurrent.TimeoutException;
21
22/**
23 * A BufferQueue which forwards all methods to another.
24 */
25public abstract class ForwardingBufferQueue<T> implements BufferQueue<T> {
26    private final BufferQueue<T> mDelegate;
27
28    public ForwardingBufferQueue(BufferQueue<T> delegate) {
29        mDelegate = delegate;
30    }
31
32    @Override
33    public void close() {
34        mDelegate.close();
35    }
36
37    @Override
38    public T getNext() throws InterruptedException, BufferQueueClosedException {
39        return mDelegate.getNext();
40    }
41
42    @Override
43    public T getNext(long timeout, TimeUnit unit) throws InterruptedException, TimeoutException,
44            BufferQueueClosedException {
45        return mDelegate.getNext(timeout, unit);
46    }
47
48    @Override
49    public T peekNext() {
50        return mDelegate.peekNext();
51    }
52
53    @Override
54    public void discardNext() {
55        mDelegate.discardNext();
56    }
57
58    @Override
59    public boolean isClosed() {
60        return mDelegate.isClosed();
61    }
62
63    @Override
64    public String toString() {
65        return mDelegate.toString();
66    }
67}
68