javasystemtimer.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.jorphan.timer;

/**
 * A package-private implementation of {@link ITimer} based around Java system
 * timer [<code>System.currentTimeMillis()</code> method]. It is used when
 * <code>HRTimer</code> implementation is unavailable.
 * <p>
 * {@link TimerFactory} acts as the Factory for this class.
 * <p>
 * MT-safety: an instance of this class is safe to be used within the same
 * thread only.
 * 
 * @author <a href="mailto:[e-mail]">Vlad Roubtsov</a>
 * @author Originally published in <a
 *         href="http://www.javaworld.com/javaworld/javaqa/2003-01/01-qa-0110-timing.html">JavaWorld</a>
 * @author <a href="mailto:[e-mail]">Jeremy Arnold</a>
 * @version $Revision: 493784 $
 */
final class JavaSystemTimer extends AbstractTimer {
	protected double getCurrentTime() {
		return System.currentTimeMillis();
	}
}