KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > netbeans > modules > j2ee > jpa > verification > rules > entity > NoIdClassOnEntitySubclass


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 1997-2007 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */

19
20 package org.netbeans.modules.j2ee.jpa.verification.rules.entity;
21
22 import java.util.Collections JavaDoc;
23 import javax.lang.model.element.Element;
24 import javax.lang.model.element.ElementKind;
25 import javax.lang.model.element.TypeElement;
26 import javax.lang.model.type.DeclaredType;
27 import javax.lang.model.type.TypeKind;
28 import javax.lang.model.type.TypeMirror;
29 import org.netbeans.modules.j2ee.jpa.model.JPAAnnotations;
30 import org.netbeans.modules.j2ee.jpa.verification.JPAClassRule;
31 import org.netbeans.modules.j2ee.jpa.verification.JPAClassRule.ClassConstraints;
32 import org.netbeans.modules.j2ee.jpa.verification.common.ProblemContext;
33 import org.netbeans.modules.j2ee.jpa.verification.common.Utilities;
34 import org.netbeans.spi.editor.hints.ErrorDescription;
35 import org.openide.util.NbBundle;
36
37 /**
38  * An entity sub-class can not have Id field or property. Because that will lead
39  * to multiple Ids in hierarchy. Thus, an entity subclass can not also have
40  * IdClass.
41  *
42  * @author Sanjeeb.Sahoo@Sun.COM
43  * @author Tomasz.Slota@Sun.COM
44  */

45 public class NoIdClassOnEntitySubclass extends JPAClassRule {
46     
47     /** Creates a new instance of NoIdClassOnEntitySubclass */
48     public NoIdClassOnEntitySubclass() {
49         // not applicable to MappedSuperclass
50
setClassContraints(Collections.singleton(ClassConstraints.ENTITY));
51     }
52     
53     @Override JavaDoc public ErrorDescription[] apply(TypeElement subject, ProblemContext ctx){
54         if (!Utilities.hasAnnotation(subject, JPAAnnotations.ID_CLASS)){
55             
56             TypeMirror superClassType = subject.getSuperclass();
57             
58             if (superClassType.getKind() == TypeKind.DECLARED){
59                 Element superClassElem = ((DeclaredType)superClassType).asElement();
60                 
61                 if (Utilities.hasAnnotation(superClassElem, JPAAnnotations.ENTITY)){
62                     return new ErrorDescription[]{createProblem(subject, ctx)};
63                 }
64             }
65         }
66         
67         return null;
68     }
69     
70     @Override JavaDoc public String JavaDoc getDescription(){
71         return NbBundle.getMessage(IdDefinedInHierarchy.class, "MSG_EntitySubclassHasIdClass");
72     }
73     
74 }
75
Popular Tags