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Java > Open Source Codes > com > caucho > ejb > entity > EntityHome


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.ejb.entity;
30
31 import com.caucho.ejb.AbstractContext;
32 import com.caucho.ejb.AbstractEJBHome;
33 import com.caucho.ejb.AbstractServer;
34 import com.caucho.ejb.protocol.HomeSkeletonWrapper;
35 import com.caucho.log.Log;
36
37 import javax.ejb.EJBHome JavaDoc;
38 import javax.ejb.EJBMetaData JavaDoc;
39 import javax.ejb.FinderException JavaDoc;
40 import javax.ejb.Handle JavaDoc;
41 import javax.ejb.HomeHandle JavaDoc;
42 import javax.ejb.RemoveException JavaDoc;
43 import java.io.ObjectStreamException JavaDoc;
44 import java.io.Serializable JavaDoc;
45 import java.util.logging.Logger JavaDoc;
46
47 /**
48  * Abstract base class for an EntityHome.
49  */
50 abstract public class EntityHome extends AbstractEJBHome
51   implements EJBHome, Serializable JavaDoc
52 {
53   protected static final Logger JavaDoc log = Log.open(EntityHome.class);
54
55   protected final EntityServer _server;
56
57   protected EntityHome(EntityServer server)
58   {
59     _server = server;
60   }
61   
62   /**
63    * Returns the owning server.
64    */
65   public EntityServer getServer()
66   {
67     return _server;
68   }
69
70   /**
71    * Returns the EJB's meta data.
72    */
73   public EJBMetaData JavaDoc getEJBMetaData()
74   {
75     return getServer().getEJBMetaData();
76   }
77
78   /**
79    * Returns the home handle for the home bean.
80    */
81   public HomeHandle JavaDoc getHomeHandle()
82   {
83     return getServer().getHomeHandle();
84   }
85
86   /**
87    * Returns null, since primary key isn't available to the home.
88    */
89   public Object JavaDoc getPrimaryKey()
90   {
91     return null;
92   }
93
94   /**
95    * Remove the object specified by the handle.
96    */
97   public void remove(Handle JavaDoc handle)
98     throws RemoveException JavaDoc
99   {
100     getServer().remove(handle);
101   }
102   
103   /**
104    * Remove the object specified by the primary key.
105    */
106   public void remove(Object JavaDoc primaryKey)
107     throws RemoveException JavaDoc
108   {
109     try {
110       AbstractContext cxt = getServer().getContext(primaryKey);
111
112       cxt.getEJBLocalObject().remove();
113     } catch (FinderException JavaDoc e) {
114       throw new RemoveException JavaDoc(String.valueOf(e));
115     }
116   }
117
118   /**
119    * Returns the server.
120    */
121   public AbstractServer __caucho_getServer()
122   {
123     return _server;
124   }
125
126   /**
127    * The home id is null.
128    */
129   public String JavaDoc __caucho_getId()
130   {
131     return null;
132   }
133
134   /**
135    * Serialize the HomeSkeletonWrapper in place of this object.
136    *
137    * @return the matching skeleton wrapper.
138    */
139   public Object JavaDoc writeReplace() throws ObjectStreamException JavaDoc
140   {
141     return new HomeSkeletonWrapper(getHomeHandle());
142   }
143 }
144
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