001// Copyright 2009 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.tapestry5.ioc.internal.util; 016 017import java.util.concurrent.TimeUnit; 018import java.util.concurrent.locks.Condition; 019import java.util.concurrent.locks.Lock; 020 021/** 022 * Acts like a Lock but all operations are no-ops. 023 */ 024public class DummyLock implements Lock 025{ 026 public void lock() 027 { 028 } 029 030 public void lockInterruptibly() throws InterruptedException 031 { 032 } 033 034 /** 035 * Returns null. 036 */ 037 public Condition newCondition() 038 { 039 return null; 040 } 041 042 /** @return true */ 043 public boolean tryLock() 044 { 045 return true; 046 } 047 048 /** @return true */ 049 public boolean tryLock(long time, TimeUnit unit) throws InterruptedException 050 { 051 return true; 052 } 053 054 public void unlock() 055 { 056 } 057 058}