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Java > Open Source Codes > org > netbeans > modules > j2ee > persistence > dd > JavaPersistenceQLKeywords


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 1997-2006 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19
20 package org.netbeans.modules.j2ee.persistence.dd;
21
22 import java.util.Arrays JavaDoc;
23 import java.util.Set JavaDoc;
24 import java.util.TreeSet JavaDoc;
25 import org.openide.util.NbBundle;
26
27 /**
28  * Utility class that allows checking whether given string is
29  * <em>Java Persistence API QL keyword</em>
30  * and thus cannot be used as a name for a persistent class or field.
31  * @author Tomasz Slota
32  */
33 public class JavaPersistenceQLKeywords {
34     
35     private static Set JavaDoc<String JavaDoc> keywords ;
36     
37     private JavaPersistenceQLKeywords() {}
38     
39     static{
40         String JavaDoc rawKeywords = NbBundle.getBundle(JavaPersistenceQLKeywords.class).getString("JavaPersistenceQLKeywords");
41         keywords = new TreeSet JavaDoc<String JavaDoc>(Arrays.asList(rawKeywords.split(","))); //NOI18N
42 }
43     
44     public static boolean isKeyword(String JavaDoc string){
45         if (string == null){
46             throw new NullPointerException JavaDoc();
47         }
48         
49         boolean result = keywords.contains(string.toUpperCase());
50         return result;
51     }
52 }
53
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