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