KickJava   Java API By Example, From Geeks To Geeks.

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


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.JPAHelper;
30 import org.netbeans.modules.j2ee.jpa.verification.JPAClassRule;
31 import org.netbeans.modules.j2ee.jpa.verification.common.ProblemContext;
32 import org.netbeans.spi.editor.hints.ErrorDescription;
33 import org.openide.util.NbBundle;
34
35 /**
36  * An entity hierarchy must have an Id. It could be a simple Id, cmposite Id or
37  * embedded Id. In case of simple and composite id, it must have atleast one
38  * field or property annotated as Id, where as in case of emdebedded id, it must
39  * have a field or property annotated as Embedded.
40  *
41  * @author Sanjeeb.Sahoo@Sun.COM
42  * @author Tomasz.Slota@Sun.COM
43  */
44 public class IdDefinedInHierarchy extends JPAClassRule {
45     
46     public IdDefinedInHierarchy(){
47         setClassContraints(Collections.singleton(ClassConstraints.ENTITY));
48     }
49     
50     @Override JavaDoc public ErrorDescription[] apply(TypeElement subject, ProblemContext ctx){
51         TypeElement javaClass = subject;
52         
53         do{
54             if (JPAHelper.isAnyMemberAnnotatedAsIdOrEmbeddedId(javaClass)){
55                 return null; // OK
56 }
57             
58             TypeMirror parentType = javaClass.getSuperclass();
59             javaClass = null;
60             
61             if (!"java.lang.Object".equals(parentType.toString())){ //NOI18N
62 if (parentType.getKind() == TypeKind.DECLARED){
63                     Element parent = ((DeclaredType)parentType).asElement();
64                     
65                     if (parent.getKind() == ElementKind.CLASS){
66                         javaClass = (TypeElement) parent;
67                     }
68                 }
69             }
70             
71         } while (javaClass != null);
72         
73         return new ErrorDescription[]{createProblem(subject, ctx)};
74     }
75     
76     public String JavaDoc getDescription(){
77         return NbBundle.getMessage(IdDefinedInHierarchy.class, "MSG_NoIdDefinedInHierarchy");
78     }
79 }
80
Popular Tags