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


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.Arrays JavaDoc;
23 import javax.lang.model.element.Element;
24 import javax.lang.model.element.ElementKind;
25 import javax.lang.model.element.ExecutableElement;
26 import javax.lang.model.element.Modifier;
27 import javax.lang.model.element.TypeElement;
28 import org.netbeans.modules.j2ee.jpa.verification.JPAClassRule;
29 import org.netbeans.modules.j2ee.jpa.verification.common.ProblemContext;
30 import org.netbeans.spi.editor.hints.ErrorDescription;
31 import org.openide.util.NbBundle;
32
33 /**
34  * The class must have a public or protected, no-argument constructor.
35  *
36  * @author Sanjeeb.Sahoo@Sun.COM
37  * @author Tomasz.Slota@Sun.COM
38  */
39 public class HasNoArgConstructor extends JPAClassRule {
40     
41     /** Creates a new instance of HasNoArgConstructor */
42     public HasNoArgConstructor() {
43         setClassContraints(Arrays.asList(ClassConstraints.ENTITY,
44                 ClassConstraints.EMBEDDABLE, ClassConstraints.IDCLASS));
45     }
46     
47     @Override JavaDoc public ErrorDescription[] apply(TypeElement subject, ProblemContext ctx){
48         for (Element element : subject.getEnclosedElements()){
49             if (element.getKind() == ElementKind.CONSTRUCTOR){
50                 ExecutableElement constr = (ExecutableElement) element;
51                 
52                 if (constr.getParameters().size() == 0
53                         && (constr.getModifiers().contains(Modifier.PUBLIC)
54                         || constr.getModifiers().contains(Modifier.PROTECTED))){
55                     return null; // found appropriate constructor
56 }
57             }
58         }
59         
60         return new ErrorDescription[]{createProblem(subject, ctx)};
61     }
62     
63     public String JavaDoc getDescription(){
64         return NbBundle.getMessage(IdDefinedInHierarchy.class, "MSG_HasNoNoArgConstructor");
65     }
66 }
67
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