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Java > Open Source Codes > org > objectweb > proactive > core > event > ProActiveEvent


1 /*
2 * ################################################################
3 *
4 * ProActive: The Java(TM) library for Parallel, Distributed,
5 * Concurrent computing with Security and Mobility
6 *
7 * Copyright (C) 1997-2002 INRIA/University of Nice-Sophia Antipolis
8 * Contact: proactive-support@inria.fr
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23 * USA
24 *
25 * Initial developer(s): The ProActive Team
26 * http://www.inria.fr/oasis/ProActive/contacts.html
27 * Contributor(s):
28 *
29 * ################################################################
30 */
31 package org.objectweb.proactive.core.event;
32
33 /**
34  * <p>
35  * Base class of all events occuring in ProActive. <code>ProActiveEvent</code>
36  * provides a event type and a timestamp.
37  * </p><p>
38  * Should be subclassed to create more specific events.
39  * </p>
40  *
41  * @see java.util.EventObject
42  * @author ProActive Team
43  * @version 1.0, 2001/10/23
44  * @since ProActive 0.9
45  *
46  */
47 public class ProActiveEvent extends java.util.EventObject JavaDoc implements java.io.Serializable JavaDoc {
48
49   public static final int GENERIC_TYPE = -1;
50   
51   /** type of the message */
52   protected int type;
53
54   /** The timestamp */
55   protected long timeStamp;
56   
57   
58   /**
59    * Creates a new <code>ProActiveEvent</code> based on the given object and type
60    * @param obj the object originating of the event
61    * @param type the type of the event
62    */
63   public ProActiveEvent(Object JavaDoc obj, int type) {
64     super(obj);
65     this.timeStamp = System.currentTimeMillis();
66     this.type = type;
67   }
68
69
70   /**
71    * Returns the time this event was created
72    * @return the time this event was created
73    */
74   public long getTimeStamp() {
75     return timeStamp;
76   }
77
78   /**
79    * Returns the type of this event
80    * @return the type of this event
81    */
82   public int getType() {
83     return type;
84   }
85   
86   
87   public String JavaDoc toString() {
88     return "ProActiveEvent@"+timeStamp+" type="+type;
89   }
90   
91 }
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