    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 */
    017package org.apache.bcel.classfile;
    018
    019import java.io.DataInput;
    020import java.io.IOException;
    021
    022import org.apache.bcel.Const;
    023
    024/**
    025 * This class represents a constant pool reference to a field.
    026 */
    027public final class ConstantFieldref extends ConstantCP {
    028
    029    /**
    030     * Initialize from another object.
    031     *
    032     * @param c Source to copy.
    033     */
    034    public ConstantFieldref(final ConstantFieldref c) {
    035        super(Const.CONSTANT_Fieldref, c.getClassIndex(), c.getNameAndTypeIndex());
    036    }
    037
    038    /**
    039     * Initialize instance from input data.
    040     *
    041     * @param input input stream
    042     * @throws IOException if an I/O error occurs.
    043     */
    044    ConstantFieldref(final DataInput input) throws IOException {
    045        super(Const.CONSTANT_Fieldref, input);
    046    }
    047
    048    /**
    049     * @param classIndex Reference to the class containing the Field
    050     * @param nameAndTypeIndex and the Field signature
    051     */
    052    public ConstantFieldref(final int classIndex, final int nameAndTypeIndex) {
    053        super(Const.CONSTANT_Fieldref, classIndex, nameAndTypeIndex);
    054    }
    055
    056    /**
    057     * Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class.
    058     * I.e., the hierarchy of Fields, fields, attributes, etc. spawns a tree of objects.
    059     *
    060     * @param v Visitor object
    061     */
    062    @Override
    063    public void accept(final Visitor v) {
    064        v.visitConstantFieldref(this);
    065    }
    066}