1 /* ====================================================================
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 2000 The Apache Software Foundation. All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
25 *
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>;.
53 *
54 * Portions of this software are based upon public domain software
55 * originally written at the National Center for Supercomputing Applications,
56 * University of Illinois, Urbana-Champaign.
57 */
58
59 package net.sourceforge.jane.jjtree;
60
61 import java.util.HashSet;
62 import java.util.Set;
63
64 import org.apache.commons.collections.Predicate;
65
66 /***
67 * A container for modifiers.
68 */
69 public class Modifiers
70 implements JavaParserConstants
71 {
72
73 private Set modifiers;
74
75 /***
76 * Create a new <code>Modifiers</code>.
77 */
78 public Modifiers()
79 {
80 modifiers = new HashSet();
81 }
82
83 /***
84 * Returns <code>true</code> if this element is public.
85 */
86 public boolean isPublic()
87 {
88 return containsModifier(PUBLIC);
89 }
90
91 /***
92 * Returns <code>true</code> if this element is public.
93 */
94 public boolean isProtected()
95 {
96 return containsModifier(PUBLIC);
97 }
98
99 /***
100 * Returns <code>true</code> if this element is public.
101 */
102 public boolean isPrivate()
103 {
104 return containsModifier(PUBLIC);
105 }
106
107 /***
108 * Returns <code>true</code> if this element is package protected.
109 */
110 public boolean isPackageProtected()
111 {
112 return !isPublic() && !isProtected() && !isPrivate();
113 }
114
115 /***
116 * Returns <code>true</code> if this element is abstract.
117 */
118 public boolean isAbstract()
119 {
120 return containsModifier(ABSTRACT);
121 }
122
123 /***
124 * Returns <code>true</code> if this element is final.
125 */
126 public boolean isFinal()
127 {
128 return containsModifier(FINAL);
129 }
130
131 /***
132 * Returns <code>true</code> if this element is static.
133 */
134 public boolean isStatic()
135 {
136 return containsModifier(STATIC);
137 }
138
139 /***
140 * Returns <code>true</code> if this element is native.
141 */
142 public boolean isNative()
143 {
144 return containsModifier(NATIVE);
145 }
146
147 /***
148 * Returns <code>true</code> if this element is synchronized.
149 */
150 public boolean isSynchronized()
151 {
152 return containsModifier(SYNCHRONIZED);
153 }
154
155 /***
156 * Returns <code>true</code> if this element is static.
157 */
158 public boolean isStrict()
159 {
160 return containsModifier(STRICTFP);
161 }
162
163 /***
164 * Create a modifiers instance.
165 */
166 public static Modifiers newInstance(Token start, Token end)
167 {
168 TokenEnumeration tokens = new TokenEnumeration(start,
169 end,
170 new Predicate() {
171 public boolean evaluate(Object obj) {
172 Token tok = (Token) obj;
173 return
174 tok.kind == PUBLIC ||
175 tok.kind == PROTECTED ||
176 tok.kind == PRIVATE ||
177 tok.kind == STATIC ||
178 tok.kind == ABSTRACT ||
179 tok.kind == FINAL ||
180 tok.kind == NATIVE ||
181 tok.kind == SYNCHRONIZED ||
182 tok.kind == STRICTFP ;
183 }
184 });
185 Modifiers modifiers = new Modifiers();
186 while (tokens.hasMoreTokens()) {
187 modifiers.addModifier(tokens.nextToken().kind);
188 }
189 return modifiers;
190 }
191
192 /***
193 * Returns the modifers.
194 */
195 boolean containsModifier(int modifierKind)
196 {
197 return modifiers.contains(new Integer(modifierKind));
198 }
199
200 /***
201 * Add a modifier kind.
202 */
203 void addModifier(int modifierKind)
204 {
205 modifiers.add(new Integer(modifierKind));
206 }
207
208 }
This page was automatically generated by Maven