1 /* 2 * Copyright (C) 2018 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.ahat.progress; 18 19 /** 20 * Null progress tracker that ignores all updates. 21 */ 22 public class NullProgress implements Progress { start(String description, long duration)23 @Override public void start(String description, long duration) { } advance()24 @Override public void advance() { } advance(long n)25 @Override public void advance(long n) { } update(long current)26 @Override public void update(long current) { } done()27 @Override public void done() { } 28 } 29