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