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


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.Stack JavaDoc;
20 import org.apache.bcel.classfile.JavaClass;
21
22 /**
23  * Utility class implementing a (typesafe) stack of JavaClass objects.
24  *
25  * @version $Id: ClassStack.java 386056 2006-03-15 11:31:56Z tcurdt $
26  * @author <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
27  * @see Stack
28  */
29 public class ClassStack implements java.io.Serializable JavaDoc {
30
31     private Stack JavaDoc stack = new Stack JavaDoc();
32
33
34     public void push( JavaClass clazz ) {
35         stack.push(clazz);
36     }
37
38
39     public JavaClass pop() {
40         return (JavaClass) stack.pop();
41     }
42
43
44     public JavaClass top() {
45         return (JavaClass) stack.peek();
46     }
47
48
49     public boolean empty() {
50         return stack.empty();
51     }
52 }
53
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