1 /* 2 * Copyright 2004 Charles Blaxland 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 package mnemosyne.lock; 17 18 import mnemosyne.core.Transaction; 19 20 /*** 21 * @version $Id: Lock.java,v 1.2 2004/08/12 14:01:06 charlesblaxland Exp $ 22 */ 23 public interface Lock 24 { 25 public void acquireReadLock(Transaction transaction) throws DeadlockException, LockFailedException; 26 public void acquireWriteLock(Transaction transaction) throws DeadlockException, LockFailedException; 27 public void releaseLock(Transaction transaction); 28 }