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}