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Java > Open Source Codes > org > apache > bcel > util > ClassQueue


1 /*
2  * Copyright 2000-2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  */
17 package org.apache.bcel.util;
18
19 import java.util.LinkedList JavaDoc;
20 import org.apache.bcel.classfile.JavaClass;
21
22 /**
23  * Utility class implementing a (typesafe) queue of JavaClass
24  * objects.
25  *
26  * @version $Id: ClassQueue.java 386056 2006-03-15 11:31:56Z tcurdt $
27  * @author <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
28  */
29 public class ClassQueue implements java.io.Serializable JavaDoc {
30
31     protected LinkedList JavaDoc vec = new LinkedList JavaDoc();
32
33
34     public void enqueue( JavaClass clazz ) {
35         vec.addLast(clazz);
36     }
37
38
39     public JavaClass dequeue() {
40         return (JavaClass) vec.removeFirst();
41     }
42
43
44     public boolean empty() {
45         return vec.isEmpty();
46     }
47
48
49     public String JavaDoc toString() {
50         return vec.toString();
51     }
52 }
53
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