001// Copyright 2004, 2005 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.hivemind.service.impl; 016 017import java.util.HashMap; 018import java.util.Map; 019 020import org.apache.hivemind.service.ThreadLocalStorage; 021 022/** 023 * Implementation of {@link org.apache.hivemind.service.ThreadLocalStorage}. 024 * <p> 025 * Starting with release 1.2, this implementation was simplified, and its service model changed to 026 * threaded. 027 * 028 * @author Howard Lewis Ship, Harish Krishnaswamy 029 */ 030public class ThreadLocalStorageImpl implements ThreadLocalStorage 031{ 032 // Created anew for each instance of TLS in each thread. 033 034 private final Map _map = new HashMap(); 035 036 public Object get(String key) 037 { 038 return _map.get(key); 039 } 040 041 public void put(String key, Object value) 042 { 043 _map.put(key, value); 044 } 045 046 public void clear() 047 { 048 _map.clear(); 049 } 050}