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Java > Open Source Codes > com > caucho > server > cluster > ObjectManager


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */

28
29 package com.caucho.server.cluster;
30
31 import java.io.IOException JavaDoc;
32 import java.io.ObjectInputStream JavaDoc;
33 import java.io.ObjectOutputStream JavaDoc;
34
35 /**
36  * Base class for the distributed objects
37  */

38 public interface ObjectManager {
39   /**
40    * Returns the maximum idle time.
41    */

42   public long getMaxIdleTime();
43   
44   /**
45    * Loads the object from the input stream.
46    */

47   public void load(ObjectInputStream JavaDoc out, Object JavaDoc object)
48     throws IOException JavaDoc;
49   
50   /**
51    * Returns true if the object is empty.
52    */

53   public boolean isEmpty(Object JavaDoc object)
54     throws IOException JavaDoc;
55   
56   /**
57    * Stores the object in the output stream.
58    */

59   public void store(ObjectOutputStream JavaDoc out, Object JavaDoc object)
60     throws IOException JavaDoc;
61
62   /**
63    * Notifies that an object is updated.
64    */

65   public void notifyUpdate(String JavaDoc objectId)
66     throws IOException JavaDoc;
67
68   /**
69    * Notifies an object has been removed.
70    */

71   public void notifyRemove(String JavaDoc objectId)
72     throws IOException JavaDoc;
73 }
74
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