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Java > Open Source Codes > org > eclipse > jdt > core > util > IConstantPool


1 /*******************************************************************************
2  * Copyright (c) 2000, 2006 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.jdt.core.util;
12
13 /**
14  * Description of a constant pool as described in the JVM specifications.
15  *
16  * This interface may be implemented by clients.
17  *
18  * @since 2.0
19  */
20 public interface IConstantPool {
21
22     /**
23      * Answer back the number of entries in the constant pool.
24      *
25      * @return the number of entries in the constant pool
26      */
27     int getConstantPoolCount();
28
29     /**
30      * Answer back the type of the entry at the index @index
31      * in the constant pool.
32      *
33      * @param index the index of the entry in the constant pool
34      * @return the type of the entry at the index @index in the constant pool
35      */
36     int getEntryKind(int index);
37
38     /**
39      * Answer back the entry at the index @index
40      * in the constant pool.
41      *
42      * @param index the index of the entry in the constant pool
43      * @return the entry at the index @index in the constant pool
44      */
45     IConstantPoolEntry decodeEntry(int index);
46 }
47
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