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Java > Open Source Codes > org > objectweb > proactive > core > component > identity > ProActiveComponent


1 /*
2  * ################################################################
3  *
4  * ProActive: The Java(TM) library for Parallel, Distributed,
5  * Concurrent computing with Security and Mobility
6  *
7  * Copyright (C) 1997-2004 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.component.identity;
32
33 import org.objectweb.fractal.api.Component;
34
35 import org.objectweb.proactive.core.UniqueID;
36 import org.objectweb.proactive.core.component.request.ComponentRequestQueue;
37
38
39 /**
40  * This class extends Component, in order to provide access to some ProActive
41  * functionalities (the parameters of the component, the request queue, the reified object)
42  *
43   * @author Matthieu Morel
44   */
45 public interface ProActiveComponent extends Component {
46     
47
48     /**
49      * accessor to the base object : either a direct reference or a stub
50      * @return a reference on the base object. If called from the meta-objects,
51      * it returns a direct reference on the base object. If called from the representative,
52      * it returns a stub on the base object (standard ProActive stub, same type than
53      * the base object)
54      */
55     public Object JavaDoc getReferenceOnBaseObject();
56
57     /**
58      * This method's implementation is only valid in the component meta-objects.
59      * @return a reference to the queue of request of this active object
60      */
61     public ComponentRequestQueue getRequestQueue();
62     
63     /**
64      * comparison between components
65      * @param componentIdentity another component to compare to
66      * @return true if both components are equals
67      */
68     public boolean equals(Object JavaDoc object);
69     
70     
71     /**
72      * getter for a unique identifier
73      * @return a unique identifier of the component (of the active object) accross virtual machines
74      */
75     public UniqueID getID();
76     
77     
78
79 }
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