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Java > Open Source Codes > org > apache > jorphan > timer > TimerFactory


1 // $Header: /home/cvs/jakarta-jmeter/src/jorphan/org/apache/jorphan/timer/TimerFactory.java,v 1.3 2004/02/11 23:57:23 sebb Exp $
2 /*
3  * Copyright 2002-2004 The Apache Software Foundation.
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17 */
18
19 package org.apache.jorphan.timer;
20
21 /**
22  * This non-instantiable non-extendible class acts as a Factory for
23  * {@link ITimer} implementations.
24  *
25  * @author <a HREF="mailto:vroubtsov@illinoisalumni.org">Vlad Roubtsov</a>
26  * @author Originally published in <a HREF="http://www.javaworld.com/javaworld/javaqa/2003-01/01-qa-0110-timing.html">JavaWorld</a>
27  * @version $Revision: 1.3 $
28  */
29 public final class TimerFactory
30 {
31     /**
32      * Creates a new instance of {@link ITimer} which is returned in 'ready'
33      * state. If the JNI-based/high-resolution implementation is not available
34      * this will return an instance of <code>JavaSystemTimer</code>, so this
35      * method is guaranteed not to fail.
36      *
37      * @return ITimer a new timer instance in 'ready' state [never null]
38      */
39     public static ITimer newTimer ()
40     {
41         try
42         {
43             return new HRTimer ();
44         }
45         catch (Throwable JavaDoc t)
46         {
47             return new JavaSystemTimer ();
48         }
49     }
50
51     /**
52      * Private default constructor to prevent instantiation.
53      */
54     private TimerFactory () {}
55 }
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