    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    public ConstantFieldref(final ConstantFieldref c) {
    033        super(Const.CONSTANT_Fieldref, c.getClassIndex(), c.getNameAndTypeIndex());
    034    }
    035
    036    /**
    037     * Initialize instance from input data.
    038     *
    039     * @param input input stream
    040     * @throws IOException if an I/O error occurs.
    041     */
    042    ConstantFieldref(final DataInput input) throws IOException {
    043        super(Const.CONSTANT_Fieldref, input);
    044    }
    045
    046    /**
    047     * @param classIndex Reference to the class containing the Field
    048     * @param nameAndTypeIndex and the Field signature
    049     */
    050    public ConstantFieldref(final int classIndex, final int nameAndTypeIndex) {
    051        super(Const.CONSTANT_Fieldref, classIndex, nameAndTypeIndex);
    052    }
    053
    054    /**
    055     * Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class.
    056     * I.e., the hierarchy of Fields, fields, attributes, etc. spawns a tree of objects.
    057     *
    058     * @param v Visitor object
    059     */
    060    @Override
    061    public void accept(final Visitor v) {
    062        v.visitConstantFieldref(this);
    063    }
    064}