1/*
2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25class ConstantPoolEntry {
26    private int index;
27    private String value;
28
29    public ConstantPoolEntry(int index) {
30        this.index = index;
31        value = null;
32    }
33
34    public ConstantPoolEntry(String value) {
35        this.index = -1;
36        this.value = value;
37    }
38
39    public String getValue() throws IllegalStateException {
40        if (index != -1) {
41            throw new IllegalStateException();
42        }
43        return value;
44    }
45
46    public int getNameIndex() throws IllegalStateException {
47        if (value != null) {
48            throw new IllegalStateException();
49        }
50        return index;
51    }
52
53    public int getClassIndex() throws IllegalStateException {
54        if (value != null) {
55            throw new IllegalStateException();
56        }
57        return index;
58    }
59}
60