/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements.  See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License.  You may obtain a copy of the License at *  *      http://www.apache.org/licenses/LICENSE-2.0 *  * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package org.apache.log4j;/**   CategoryKey is a wrapper for String that apparently accellerated   hash table lookup in early JVM's.   @author Ceki Gülcü */class CategoryKey {  String   name;    int hashCache;  CategoryKey(String name) {    this.name = name;    hashCache = name.hashCode();  }  final  public    int hashCode() {    return hashCache;  }  final  public  boolean equals(Object rArg) {    if(this == rArg)      return true;        if(rArg != null && CategoryKey.class == rArg.getClass())       return  name.equals(((CategoryKey)rArg ).name);    else       return false;  }}