001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * https://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.commons.compress.harmony.unpack200.bytecode; 020 021import java.util.List; 022 023/** 024 * Method constant pool entry. 025 */ 026public class CPMethod extends CPMember { 027 028 private boolean hashCodeComputed; 029 030 private int cachedHashCode; 031 032 public CPMethod(final CPUTF8 name, final CPUTF8 descriptor, final long flags, final List<Attribute> attributes) { 033 super(name, descriptor, flags, attributes); 034 } 035 036 private void generateHashCode() { 037 hashCodeComputed = true; 038 final int PRIME = 31; 039 int result = 1; 040 result = PRIME * result + name.hashCode(); 041 result = PRIME * result + descriptor.hashCode(); 042 cachedHashCode = result; 043 } 044 045 @Override 046 public int hashCode() { 047 if (!hashCodeComputed) { 048 generateHashCode(); 049 } 050 return cachedHashCode; 051 } 052 053 @Override 054 public String toString() { 055 return "Method: " + name + "(" + descriptor + ")"; 056 } 057 058}