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Java > Open Source Codes > org > objectweb > dream > time > TimeStampImpl


1 /**
2  * Dream
3  * Copyright (C) 2003-2004 INRIA Rhone-Alpes
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18  *
19  * Contact : dream@objectweb.org
20  *
21  * Initial developer(s): Vivien Quema
22  * Contributor(s):
23  */
24
25 package org.objectweb.dream.time;
26
27 import org.objectweb.dream.AbstractComponent;
28 import org.objectweb.dream.util.EmptyStringArray;
29
30 /**
31  * Basic implementation of a time stamp component. Such component implements the
32  * <code>SetTimeStamp</code> and <code>GetTimeStamp</code> interfaces.
33  */
34 public class TimeStampImpl extends AbstractComponent
35     implements
36       GetTimeStamp,
37       SetTimeStamp
38 {
39
40   /** The time stamp. */
41   private long timeStamp = 0;
42
43   // -------------------------------------------------------------------------
44 // Implementation of the SetTimeStamp interface
45 // -------------------------------------------------------------------------
46
47   /**
48    * @see org.objectweb.dream.time.SetTimeStamp#setTimeStamp()
49    */
50   public long setTimeStamp()
51   {
52     this.timeStamp = System.currentTimeMillis();
53     return timeStamp;
54   }
55
56   // -------------------------------------------------------------------------
57 // Implementation of the GetTimeStamp interface
58 // -------------------------------------------------------------------------
59
60   /**
61    * @see org.objectweb.dream.time.GetTimeStamp#getTimeStamp()
62    */
63   public long getTimeStamp()
64   {
65     return timeStamp;
66   }
67
68   // -------------------------------------------------------------------------
69 // Implementation of the BindingController interface
70 // -------------------------------------------------------------------------
71
72   /**
73    * @see org.objectweb.fractal.api.control.BindingController#listFc()
74    */
75   public synchronized String JavaDoc[] listFc()
76   {
77     return EmptyStringArray.EMPTY_STRING_ARRAY;
78   }
79
80 }
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