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;
016
017/**
018 * Interface for core service implementations that are managed using
019 * the <b>pooled</b> service model. 
020 *
021 * @author Howard Lewis Ship
022 */
023
024public interface PoolManageable
025{
026    /**
027     * Invoked just after a service is either created, or just after it is removed
028     * from the service pool and bound to a new thread.
029     */
030    public void activateService();
031
032    /**
033     * Invoked when a service is unbound from a thread, just before being returned to
034     * the service pool.  It is <em>not</em> guaranteed that this will be invoked
035     * when the Registry is shutdown.
036     */
037
038    public void passivateService();
039}