001/*
002 * HA-JDBC: High-Availability JDBC
003 * Copyright (C) 2012  Paul Ferraro
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Lesser General Public License as published by
007 * the Free Software Foundation, either version 3 of the License, or
008 * (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Lesser General Public License for more details.
014 *
015 * You should have received a copy of the GNU Lesser General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018package net.sf.hajdbc.lock.distributed;
019
020import java.util.concurrent.locks.Lock;
021
022/**
023 * Release lock command for execution on group coordinator.
024 * @author Paul Ferraro
025 */
026public class CoordinatorReleaseLockCommand extends CoordinatorLockCommand<Void>
027{
028        private static final long serialVersionUID = -925862880236957178L;
029        
030        public CoordinatorReleaseLockCommand(RemoteLockDescriptor descriptor)
031        {
032                super(descriptor);
033        }
034
035        /**
036         * {@inheritDoc}
037         * @see net.sf.hajdbc.lock.distributed.CoordinatorLockCommand#execute(java.util.concurrent.locks.Lock)
038         */
039        @Override
040        protected Void execute(Lock lock)
041        {
042                lock.unlock();
043                
044                return null;
045        }
046}