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Java > Open Source Codes > oracle > toplink > essentials > internal > ejb > cmp3 > xml > columns > XMLPrimaryKeyJoinColumn


1 /*
2  * The contents of this file are subject to the terms
3  * of the Common Development and Distribution License
4  * (the "License"). You may not use this file except
5  * in compliance with the License.
6  *
7  * You can obtain a copy of the license at
8  * glassfish/bootstrap/legal/CDDLv1.0.txt or
9  * https://glassfish.dev.java.net/public/CDDLv1.0.html.
10  * See the License for the specific language governing
11  * permissions and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL
14  * HEADER in each file and include the License file at
15  * glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
16  * add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your
18  * own identifying information: Portions Copyright [yyyy]
19  * [name of copyright owner]
20  */
21 // Copyright (c) 1998, 2006, Oracle. All rights reserved.
22 package oracle.toplink.essentials.internal.ejb.cmp3.xml.columns;
23
24 import org.w3c.dom.Node JavaDoc;
25
26 import oracle.toplink.essentials.internal.ejb.cmp3.xml.XMLHelper;
27 import oracle.toplink.essentials.internal.ejb.cmp3.xml.XMLConstants;
28
29 import oracle.toplink.essentials.internal.ejb.cmp3.metadata.columns.MetadataPrimaryKeyJoinColumn;
30
31 /**
32  * Object to hold onto XML primary key join column metadata in TopLink database
33  * fields.
34  *
35  * @author Guy Pelletier
36  * @since TopLink EJB 3.0 Reference Implementation
37  */
38 public class XMLPrimaryKeyJoinColumn extends MetadataPrimaryKeyJoinColumn {
39     /**
40      * INTERNAL:
41      */
42     public XMLPrimaryKeyJoinColumn(String JavaDoc sourceTableName, String JavaDoc targetTableName) {
43         super(sourceTableName, targetTableName);
44     }
45     
46     /**
47      * INTERNAL:
48      */
49     public XMLPrimaryKeyJoinColumn(Node JavaDoc node, XMLHelper helper, String JavaDoc sourceTableName, String JavaDoc targetTableName) {
50         super(sourceTableName, targetTableName);
51
52         if (node != null) {
53             // Process the primary key field metadata.
54 m_pkField.setName(helper.getNodeValue(node, XMLConstants.ATT_REFERENCED_COLUMN_NAME, DEFAULT_REFERENCED_COLUMN_NAME));
55         
56             // Process the foreign key field metadata.
57 m_fkField.setName(helper.getNodeValue(node, XMLConstants.ATT_NAME, DEFAULT_NAME));
58             m_fkField.setColumnDefinition(helper.getNodeValue(node, XMLConstants.ATT_COLUMN_DEFINITION, DEFAULT_COLUMN_DEFINITION));
59         }
60     }
61     
62     /**
63      * INTERNAL:
64      */
65     public boolean loadedFromXML() {
66         return true;
67     }
68 }
69
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