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Java > Open Source Codes > oracle > toplink > essentials > internal > ejb > cmp3 > xml > tables > XMLJoinTable


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.tables;
23
24 import oracle.toplink.essentials.internal.ejb.cmp3.metadata.columns.MetadataJoinColumns;
25 import oracle.toplink.essentials.internal.ejb.cmp3.metadata.tables.MetadataJoinTable;
26
27 import oracle.toplink.essentials.internal.ejb.cmp3.xml.columns.XMLJoinColumns;
28
29 import oracle.toplink.essentials.internal.ejb.cmp3.xml.XMLConstants;
30 import oracle.toplink.essentials.internal.ejb.cmp3.xml.XMLHelper;
31
32 import org.w3c.dom.Node JavaDoc;
33 import org.w3c.dom.NodeList JavaDoc;
34
35 /**
36  * Object to hold onto an XML join table metadata in a TopLink database table.
37  *
38  * @author Guy Pelletier
39  * @since TopLink EJB 3.0 Reference Implementation
40  */
41 public class XMLJoinTable extends MetadataJoinTable {
42     protected XMLHelper m_helper;
43     protected NodeList JavaDoc m_joinColumns;
44     protected NodeList JavaDoc m_inverseJoinColumns;
45     
46     /**
47      * INTERNAL:
48      */
49     public XMLJoinTable(Node JavaDoc node, XMLHelper helper) {
50         m_helper = helper;
51         
52         m_name = helper.getNodeValue(node, XMLConstants.ATT_NAME);
53         m_schema = helper.getNodeValue(node, XMLConstants.ATT_SCHEMA);
54         m_catalog = helper.getNodeValue(node, XMLConstants.ATT_CATALOG);
55         
56         m_joinColumns = helper.getNodes(node, XMLConstants.JOIN_COLUMN);
57         m_inverseJoinColumns = helper.getNodes(node, XMLConstants.INVERSE_JOIN_COLUMN);
58             
59         processName();
60         XMLTableHelper.processUniqueConstraints(node, helper, m_databaseTable);
61     }
62
63     /**
64      * INTERNAL:
65      */
66     public boolean loadedFromXML() {
67         return true;
68     }
69     
70     /**
71      * INTERNAL: (OVERRIDE)
72      */
73     protected MetadataJoinColumns processInverseJoinColumns() {
74         return new XMLJoinColumns(m_inverseJoinColumns, m_helper);
75     }
76     
77     /**
78      * INTERNAL: (OVERRIDE)
79      */
80     protected MetadataJoinColumns processJoinColumns() {
81         return new XMLJoinColumns(m_joinColumns, m_helper);
82     }
83 }
84
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