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.log4j; 019 020/** 021 CategoryKey is a wrapper for String that apparently accellerated 022 hash table lookup in early JVM's. 023 @author Ceki Gülcü 024*/ 025class CategoryKey { 026 027 String name; 028 int hashCache; 029 030 CategoryKey(String name) { 031 this.name = name; 032 hashCache = name.hashCode(); 033 } 034 035 final 036 public 037 int hashCode() { 038 return hashCache; 039 } 040 041 final 042 public 043 boolean equals(Object rArg) { 044 if(this == rArg) 045 return true; 046 047 if(rArg != null && CategoryKey.class == rArg.getClass()) 048 return name.equals(((CategoryKey)rArg ).name); 049 else 050 return false; 051 } 052}