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Java > Open Source Codes > org > netbeans > modules > j2ee > persistence > dd > ORMMetadata


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19
20 package org.netbeans.modules.j2ee.persistence.dd;
21
22 import java.io.IOException JavaDoc;
23 import java.util.HashMap JavaDoc;
24 import java.util.Map JavaDoc;
25 import org.netbeans.modules.j2ee.metadata.MetadataUnit;
26 import org.netbeans.modules.j2ee.persistence.api.metadata.orm.EntityMappings;
27
28 /**
29  * Provider of model based on persistence_ORM.xsd schema.
30  * Provided model is merged representation of metadata defined in both
31  * annotations and deployment descriptor with filled default values
32  * as defined in persistence specification.
33  *
34  * @author Martin Adamek
35  */
36 public final class ORMMetadata {
37     private static final ORMMetadata instance = new ORMMetadata();
38     private Map JavaDoc<MetadataUnit, EntityMappings> annotationDDMap;
39     
40     private ORMMetadata() {
41         // TODO: RETOUCHE
42 // annotationDDMap = new HashMap<MetadataUnit, EntityMappings>(5);
43 }
44     
45     /**
46      * Use this to get singleton instance of provider
47      *
48      * @return singleton instance
49      */
50     public static ORMMetadata getDefault() {
51         return instance;
52     }
53     
54     /**
55      * Provides root element as defined in persistence_ORM.xsd
56      *
57      * @param mu unit providing ORM metadata defined in annotations and deployment descriptor.
58      * It can be retrieved from {@link PersistenceProvider}
59      * @return root element of schema or null if it doesn't exist for provided
60      * MetadataUnit
61      * @throws java.io.IOException
62      * @see PersistenceProvider
63      */
64     public EntityMappings getRoot(MetadataUnit mu) throws IOException JavaDoc {
65         // TODO: RETOUCHE
66 // EntityMappings annotationRoot = getAnnotationRoot(mu);
67 // EntityMappings entityMappings = (EntityMappings) MergedProvider.getDefault().getRoot(annotationRoot, null);
68 // return entityMappings;
69 return null;
70     }
71     
72     
73     
74     public boolean isScanInProgress() {
75         // TODO: RETOUCHE
76 // return NNMDRListener.getDefault().isScanInProgress();
77 return false;
78     }
79     
80     public void waitScanFinished() {
81         // TODO: RETOUCHE
82 //NNMDRListener.getDefault().waitScanFinished();
83 return;
84     }
85 }
86
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