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.commons.compress.harmony.unpack200.bytecode; 018 019import java.util.List; 020 021/** 022 * Method constant pool entry. 023 */ 024public class CPMethod extends CPMember { 025 026 private boolean hashCodeComputed; 027 028 private int cachedHashCode; 029 030 public CPMethod(final CPUTF8 name, final CPUTF8 descriptor, final long flags, final List<Attribute> attributes) { 031 super(name, descriptor, flags, attributes); 032 } 033 private void generateHashCode() { 034 hashCodeComputed = true; 035 final int PRIME = 31; 036 int result = 1; 037 result = PRIME * result + name.hashCode(); 038 result = PRIME * result + descriptor.hashCode(); 039 cachedHashCode = result; 040 } 041 042 @Override 043 public int hashCode() { 044 if (!hashCodeComputed) { 045 generateHashCode(); 046 } 047 return cachedHashCode; 048 } 049 050 @Override 051 public String toString() { 052 return "Method: " + name + "(" + descriptor + ")"; 053 } 054 055}