001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 * 017 */ 018package org.apache.bcel.classfile; 019 020import java.io.DataOutputStream; 021import java.io.IOException; 022 023/** 024 * An annotation's element value pair. 025 * 026 * @since 6.0 027 */ 028public class ElementValuePair { 029 030 static final ElementValuePair[] EMPTY_ARRAY = {}; 031 032 private final ElementValue elementValue; 033 034 private final ConstantPool constantPool; 035 036 private final int elementNameIndex; 037 038 public ElementValuePair(final int elementNameIndex, final ElementValue elementValue, final ConstantPool constantPool) { 039 this.elementValue = elementValue; 040 this.elementNameIndex = elementNameIndex; 041 this.constantPool = constantPool; 042 } 043 044 protected void dump(final DataOutputStream dos) throws IOException { 045 dos.writeShort(elementNameIndex); // u2 name of the element 046 elementValue.dump(dos); 047 } 048 049 public int getNameIndex() { 050 return elementNameIndex; 051 } 052 053 public String getNameString() { 054 return constantPool.getConstantUtf8(elementNameIndex).getBytes(); 055 } 056 057 public final ElementValue getValue() { 058 return elementValue; 059 } 060 061 public String toShortString() { 062 final StringBuilder result = new StringBuilder(); 063 result.append(getNameString()).append("=").append(getValue().toShortString()); 064 return result.toString(); 065 } 066}