    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
    023import org.apache.bcel.Const;
    024
    025/**
    026 * an annotation's element value pair
    027 *
    028 * @since 6.0
    029 */
    030public class ElementValuePair
    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,
    039            final ConstantPool constantPool)
    040    {
    041        this.elementValue = elementValue;
    042        this.elementNameIndex = elementNameIndex;
    043        this.constantPool = constantPool;
    044    }
    045
    046    public String getNameString()
    047    {
    048        final ConstantUtf8 c = (ConstantUtf8) constantPool.getConstant(
    049                elementNameIndex, Const.CONSTANT_Utf8);
    050        return c.getBytes();
    051    }
    052
    053    public final ElementValue getValue()
    054    {
    055        return elementValue;
    056    }
    057
    058    public int getNameIndex()
    059    {
    060        return elementNameIndex;
    061    }
    062
    063    public String toShortString()
    064    {
    065        final StringBuilder result = new StringBuilder();
    066        result.append(getNameString()).append("=").append(
    067                getValue().toShortString());
    068        return result.toString();
    069    }
    070
    071    protected void dump(final DataOutputStream dos) throws IOException {
    072        dos.writeShort(elementNameIndex); // u2 name of the element
    073        elementValue.dump(dos);
    074    }
    075}