Lock.java

/*
 * Copyright 2013-2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package locksdemo;

import java.util.Date;

import lombok.Data;
import lombok.ToString;

/**
 * A value object representing a named lock, with a globally unique value and an expiry.
 * @author Dave Syer
 *
 */
@Data
@ToString
public class Lock implements Comparable<Lock> {

	/**
	 * The name of the lock.
	 */
	private final String name;
	/**
	 * The value of the lock (globally unique, or at least different for locks with the
	 * same name and different expiry).
	 */
	private final String value;
	/**
	 * The expiry of the lock expressed as a point in time.
	 */
	private final Date expires;
	
	public boolean isExpired() {
		return expires.before(new Date());
	}

	@Override
	public int compareTo(Lock other) {
		return expires.compareTo(other.expires);
	}

}