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Java > Open Source Codes > org > openejb > alt > assembler > classic > xml > EntityBean


1 /**
2  * Redistribution and use of this software and associated documentation
3  * ("Software"), with or without modification, are permitted provided
4  * that the following conditions are met:
5  *
6  * 1. Redistributions of source code must retain copyright
7  * statements and notices. Redistributions must also contain a
8  * copy of this document.
9  *
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
13  * materials provided with the distribution.
14  *
15  * 3. The name "Exolab" must not be used to endorse or promote
16  * products derived from this Software without prior written
17  * permission of Exoffice Technologies. For written permission,
18  * please contact info@exolab.org.
19  *
20  * 4. Products derived from this Software may not be called "Exolab"
21  * nor may "Exolab" appear in their names without prior written
22  * permission of Exoffice Technologies. Exolab is a registered
23  * trademark of Exoffice Technologies.
24  *
25  * 5. Due credit should be given to the Exolab Project
26  * (http://www.exolab.org/).
27  *
28  * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES 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  * EXOFFICE TECHNOLOGIES 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)
36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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 1999 (C) Exoffice Technologies Inc. All Rights Reserved.
42  *
43  * $Id: EntityBean.java 1921 2005-06-19 22:40:34Z jlaskowski $
44  */
45
46 package org.openejb.alt.assembler.classic.xml;
47
48
49 import org.openejb.OpenEJBException;
50 import org.openejb.alt.assembler.classic.EntityBeanInfo;
51 import org.w3c.dom.Node JavaDoc;
52
53 /**
54  * A subclass of EntityBeanInfo filled with data from an XML file.
55  *
56  * Populates the member variables of EntityBeanInfo in this classes initializeFromDOM method.
57  *
58  * @author <a HREF="mailto:david.blevins@visi.com">David Blevins</a>
59  * @author <a HREF="mailto:Richard@Monson-Haefel.com">Richard Monson-Haefel</a>
60  * @see org.openejb.alt.assembler.classic.EntityBeanInfo
61  */
62 public class EntityBean extends EntityBeanInfo implements DomObject{
63
64     /**
65      * Represents the <tt>persistence-type</tt> element in the XML config file.
66      */
67     public static final String JavaDoc PERSISTENCE_TYPE = "persistence-type";
68     
69     /**
70      * Represents the <tt>prim-key-class</tt> element in the XML config file.
71      */
72     public static final String JavaDoc PRIMARY_KEY_CLASS = "prim-key-class";
73
74     /**
75      * Represents the <tt>primkey-field</tt> element in the XML config file.
76      */
77     public static final String JavaDoc PRIMARY_KEY_FIELD = "primkey-field";
78     
79     /**
80      * Represents the <tt>reentrant</tt> element in the XML config file.
81      */
82     public static final String JavaDoc REENTRANT = "reentrant";
83     
84     /**
85      * Represents the <tt>cmr-field</tt> element in the XML config file.
86      */
87     public static final String JavaDoc CMP_FIELD_NAME = "cmp-field-name";
88     
89     /**
90      * Represents the <tt>query</tt> element in the XML config file.
91      */
92     public static final String JavaDoc QUERY = "query";
93     
94     
95     /**
96      * Parses out the values needed by this DomObject from the DOM Node passed in.
97      * @see org.w3c.dom.Node
98      */
99     public void initializeFromDOM(Node JavaDoc node) throws OpenEJBException{
100         EnterpriseBean.initializeFromDOM(node, this);
101         
102         persistenceType = DomTools.getChildElementPCData(node, PERSISTENCE_TYPE);
103         primKeyClass = DomTools.getChildElementPCData(node, PRIMARY_KEY_CLASS);
104         primKeyField = DomTools.getChildElementPCData(node, PRIMARY_KEY_FIELD);
105         reentrant = DomTools.getChildElementPCData(node, REENTRANT);
106         cmpFieldNames = DomTools.getChildElementsPCData(node, CMP_FIELD_NAME);
107
108         DomObject[] dos = DomTools.collectChildElementsByType(node, Query.class, QUERY);
109         queries = new Query[dos.length];
110         for (int i=0; i < dos.length; i++) queries[i] = (Query)dos[i];
111         
112         
113         // the transaction type for entity beans is always equal to "Container"
114 transactionType = "Container";
115     }
116
117     public void serializeToDOM(Node JavaDoc node) throws OpenEJBException{}
118 }
119
120
121
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