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Java > Open Source Codes > org > openejb > client > EJBObjectProxyHandle


1 /**
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3  * ("Software"), with or without modification, are permitted provided
4  * that the following conditions are met:
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8  * copy of this document.
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10  * 2. Redistributions in binary form must reproduce the
11  * above copyright notice, this list of conditions and the
12  * following disclaimer in the documentation and/or other
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16  * products derived from this Software without prior written
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18  * please contact dev@openejb.org.
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20  * 4. Products derived from this Software may not be called "OpenEJB"
21  * nor may "OpenEJB" appear in their names without prior written
22  * permission of The OpenEJB Group. OpenEJB is a registered
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25  * 5. Due credit should be given to the OpenEJB Project
26  * (http://www.openejb.org/).
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28  * THIS SOFTWARE IS PROVIDED BY THE OPENEJB GROUP AND CONTRIBUTORS
29  * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30  * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32  * THE OPENEJB GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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37  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39  * OF THE POSSIBILITY OF SUCH DAMAGE.
40  *
41  * Copyright 2001 (C) The OpenEJB Group. All Rights Reserved.
42  *
43  * $Id: EJBObjectProxyHandle.java 1921 2005-06-19 22:40:34Z jlaskowski $
44  */
45 package org.openejb.client;
46
47 import java.io.Externalizable JavaDoc;
48 import java.io.IOException JavaDoc;
49 import java.io.ObjectInput JavaDoc;
50 import java.io.ObjectOutput JavaDoc;
51 import java.io.ObjectStreamException JavaDoc;
52
53
54 public class EJBObjectProxyHandle implements Externalizable JavaDoc{
55
56     EJBObjectHandler handler;
57
58     public EJBObjectProxyHandle(){
59     }
60
61     public EJBObjectProxyHandle(EJBObjectHandler handler){
62         this.handler = handler;
63     }
64
65     /**
66      * Writes the instanceHandle to the stream.
67      *
68      * @param out
69      * @exception IOException
70      */
71     public void writeExternal(ObjectOutput JavaDoc out) throws IOException JavaDoc{
72         // Write the full proxy data
73 handler.client.writeExternal( out );
74         
75         EJBMetaDataImpl ejb = handler.ejb;
76         out.writeObject( ejb.homeClass );
77         out.writeObject( ejb.remoteClass );
78         out.writeObject( ejb.keyClass );
79         out.writeByte( ejb.type );
80         out.writeUTF( ejb.deploymentID );
81         out.writeShort( ejb.deploymentCode );
82         handler.server.writeExternal( out );
83         out.writeObject( handler.primaryKey );
84     }
85
86     /**
87      * Reads the instanceHandle from the stream
88      *
89      * @param in
90      * @exception IOException
91      */
92     public void readExternal(ObjectInput JavaDoc in) throws IOException JavaDoc, ClassNotFoundException JavaDoc{
93         ClientMetaData client = new ClientMetaData();
94         EJBMetaDataImpl ejb = new EJBMetaDataImpl();
95         ServerMetaData server = new ServerMetaData();
96
97         client.readExternal( in );
98
99         ejb.homeClass = (Class JavaDoc) in.readObject();
100         ejb.remoteClass = (Class JavaDoc) in.readObject();
101         ejb.keyClass = (Class JavaDoc) in.readObject();
102         ejb.type = in.readByte();
103         ejb.deploymentID = in.readUTF();
104         ejb.deploymentCode = in.readShort();
105
106         server.readExternal( in );
107         Object JavaDoc primaryKey = in.readObject();
108
109         handler = EJBObjectHandler.createEJBObjectHandler(ejb, server, client, primaryKey);
110
111     }
112
113
114     /**
115      *
116      * @return Object
117      * @exception ObjectStreamException
118      */
119     private Object JavaDoc readResolve() throws ObjectStreamException JavaDoc{
120         return handler.createEJBObjectProxy();
121     }
122
123 }
124
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