    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 * @since 6.0
    025 */
    026public class EnumElementValue extends ElementValue {
    027    // For enum types, these two indices point to the type and value
    028    private final int typeIdx;
    029
    030    private final int valueIdx;
    031
    032    public EnumElementValue(final int type, final int typeIdx, final int valueIdx, final ConstantPool cpool) {
    033        super(type, cpool);
    034        if (type != ENUM_CONSTANT) {
    035            throw new IllegalArgumentException("Only element values of type enum can be built with this ctor - type specified: " + type);
    036        }
    037        this.typeIdx = typeIdx;
    038        this.valueIdx = valueIdx;
    039    }
    040
    041    @Override
    042    public void dump(final DataOutputStream dos) throws IOException {
    043        dos.writeByte(super.getType()); // u1 type of value (ENUM_CONSTANT == 'e')
    044        dos.writeShort(typeIdx); // u2
    045        dos.writeShort(valueIdx); // u2
    046    }
    047
    048    public String getEnumTypeString() {
    049        return super.getConstantPool().getConstantUtf8(typeIdx).getBytes();
    050    }
    051
    052    public String getEnumValueString() {
    053        return super.getConstantPool().getConstantUtf8(valueIdx).getBytes();
    054    }
    055
    056    public int getTypeIndex() {
    057        return typeIdx;
    058    }
    059
    060    public int getValueIndex() {
    061        return valueIdx;
    062    }
    063
    064    @Override
    065    public String stringifyValue() {
    066        return super.getConstantPool().getConstantUtf8(valueIdx).getBytes();
    067    }
    068}