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Java > Open Source Codes > com > sun > enterprise > deployment > annotation > introspection > EjbComponentAnnotationScanner


1 /*
2  * The contents of this file are subject to the terms
3  * of the Common Development and Distribution License
4  * (the License). You may not use this file except in
5  * compliance with the License.
6  *
7  * You can obtain a copy of the license at
8  * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9  * glassfish/bootstrap/legal/CDDLv1.0.txt.
10  * See the License for the specific language governing
11  * permissions and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL
14  * Header Notice in each file and include the License file
15  * at glassfish/bootstrap/legal/CDDLv1.0.txt.
16  * If applicable, add the following below the CDDL Header,
17  * with the fields enclosed by brackets [] replaced by
18  * you own identifying information:
19  * "Portions Copyrighted [year] [name of copyright owner]"
20  *
21  * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22  */
23 package com.sun.enterprise.deployment.annotation.introspection;
24
25 import java.util.Set JavaDoc;
26 import java.util.HashSet JavaDoc;
27
28 /**
29  * This class contains the following annotation type:
30  * javax.ejb.Stateless
31  * javax.ejb.Stateful
32  * javax.ejb.MessageDriven
33  *
34  * @author Qingqing Ouyang
35  */
36 public class EjbComponentAnnotationScanner implements CustomAnnotationScanner {
37
38     private Set JavaDoc<String JavaDoc> annotations=null;
39     
40     /** Creates a new instance of AnnotationScanner */
41     public EjbComponentAnnotationScanner() {}
42         
43     /**
44      * Test if the passed constant pool string is a reference to
45      * a Type.TYPE annotation of a J2EE component
46      *
47      * @String the constant pool info string
48      * @return true if it is a J2EE annotation reference
49      */
50     public boolean isAnnotation(String JavaDoc value) {
51         if (annotations==null) {
52             synchronized(EjbComponentAnnotationScanner.class) {
53                 if (annotations==null)
54                    init();
55             }
56         }
57         return annotations.contains(value);
58     }
59     
60     private void init() {
61         annotations = new HashSet JavaDoc();
62         annotations.add("Ljavax/ejb/Stateless;");
63         annotations.add("Ljavax/ejb/Stateful;");
64         annotations.add("Ljavax/ejb/MessageDriven;");
65     }
66 }
67
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