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 
17 package com.android.camera.async;
18 
19 import java.util.concurrent.CountDownLatch;
20 
21 import javax.annotation.Nonnull;
22 
23 /**
24  * Counts down on each update.
25  */
26 public class UpdatableCountDownLatch<T> extends CountDownLatch implements Updatable<T> {
UpdatableCountDownLatch(int count)27     public UpdatableCountDownLatch(int count) {
28         super(count);
29     }
30 
31     @Override
update(@onnull T v)32     public void update(@Nonnull T v) {
33         countDown();
34     }
35 }
36