01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common
08: * Development and Distribution License("CDDL") (collectively, the
09: * "License"). You may not use this file except in compliance with the
10: * License. You can obtain a copy of the License at
11: * http://www.netbeans.org/cddl-gplv2.html
12: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
13: * specific language governing permissions and limitations under the
14: * License. When distributing the software, include this License Header
15: * Notice in each file and include the License file at
16: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
17: * particular file as subject to the "Classpath" exception as provided
18: * by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the
20: * License Header, with the fields enclosed by brackets [] replaced by
21: * your own identifying information:
22: * "Portions Copyrighted [year] [name of copyright owner]"
23: *
24: * Contributor(s):
25: *
26: * The Original Software is NetBeans. The Initial Developer of the Original
27: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
28: * Microsystems, Inc. All Rights Reserved.
29: *
30: * If you wish your version of this file to be governed by only the CDDL
31: * or only the GPL Version 2, indicate your decision by adding
32: * "[Contributor] elects to include this software in this distribution
33: * under the [CDDL or GPL Version 2] license." If you do not indicate a
34: * single choice of license, a recipient has the option to distribute
35: * your version of this file under either the CDDL, the GPL Version 2 or
36: * to extend the choice of license to its licensees as provided above.
37: * However, if you add GPL Version 2 code and therefore, elected the GPL
38: * Version 2 license, then the option applies only if the new code is
39: * made subject to such option by the copyright holder.
40: */
41:
42: package org.netbeans.modules.j2ee.jpa.verification.rules.entity;
43:
44: import java.util.Collections;
45: import javax.lang.model.element.ExecutableElement;
46: import javax.lang.model.element.TypeElement;
47: import javax.lang.model.util.ElementFilter;
48: import org.netbeans.modules.j2ee.jpa.verification.JPAClassRule;
49: import org.netbeans.modules.j2ee.jpa.verification.JPAClassRule.ClassConstraints;
50: import org.netbeans.modules.j2ee.jpa.verification.common.ProblemContext;
51: import org.netbeans.spi.editor.hints.ErrorDescription;
52: import org.openide.util.NbBundle;
53:
54: /**
55: * @author Sanjeeb.Sahoo@Sun.COM
56: * @author Tomasz.Slota@Sun.COM
57: */
58: public class IdClassOverridesEqualsAndHashCode extends JPAClassRule {
59: /** Creates a new instance of IdClassOverridesEqualsMethod */
60: public IdClassOverridesEqualsAndHashCode() {
61: setClassContraints(Collections
62: .singleton(ClassConstraints.IDCLASS));
63: }
64:
65: @Override
66: public ErrorDescription[] apply(TypeElement subject,
67: ProblemContext ctx) {
68: boolean hasEquals = false;
69: boolean hasHashCode = false;
70:
71: for (ExecutableElement method : ElementFilter.methodsIn(subject
72: .getEnclosedElements())) {
73: String methodName = method.getSimpleName().toString();
74:
75: if ("equals".equals(methodName) //NOI18N
76: && method.getParameters().size() == 1) {
77:
78: if ("java.lang.Object".equals(method.getParameters()
79: .get(0).asType().toString())) { //NOI18N
80: hasEquals = true;
81: }
82: } else {
83: if ("hashCode".equals(methodName)
84: && method.getParameters().size() == 0) { //NOI18N
85: hasHashCode = true;
86: }
87: }
88:
89: if (hasHashCode && hasEquals) {
90: return null;
91: }
92: }
93:
94: return new ErrorDescription[] { createProblem(subject, ctx,
95: NbBundle.getMessage(IdDefinedInHierarchy.class,
96: "MSG_IdClassDoesNotOverrideEquals")) };
97: }
98: }
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