KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > netbeans > lib > lexer > token > PropertyToken


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.lib.lexer.token;
21
22 import org.netbeans.api.lexer.PartType;
23 import org.netbeans.api.lexer.Token;
24 import org.netbeans.api.lexer.TokenId;
25 import org.netbeans.lib.lexer.LexerUtilsConstants;
26 import org.netbeans.spi.lexer.TokenPropertyProvider;
27
28 /**
29  * Token that holds information about preprocessed characters.
30  *
31  * <p>
32  * Instances of this token are more costly than other token types
33  * because in addition to regular information they store preprocessed
34  * text of the token.
35  *
36  * @author Miloslav Metelka
37  * @version 1.00
38  */
39
40 public final class PropertyToken<T extends TokenId> extends DefaultToken<T> {
41     
42     private final TokenPropertyProvider propertyProvider; // 28 bytes (24-super + 4)
43
44     private final PartType partType; // 32 bytes
45
46     public PropertyToken(T id, int length,
47     TokenPropertyProvider propertyProvider, PartType partType) {
48         super(id, length);
49         this.propertyProvider = propertyProvider;
50         this.partType = partType;
51     }
52     
53     @Override JavaDoc
54     public boolean hasProperties() {
55         return (propertyProvider != null);
56     }
57
58     @Override JavaDoc
59     public Object JavaDoc getProperty(Object JavaDoc key) {
60         return (propertyProvider != null) ? propertyProvider.getValue(this, key) : null;
61     }
62     
63     @Override JavaDoc
64     public PartType partType() {
65         return partType;
66     }
67
68     @Override JavaDoc
69     protected String JavaDoc dumpInfoTokenType() {
70         return "ProT"; // NOI18N "PrepToken"
71 }
72     
73 }
74
Popular Tags