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    
015    package 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    
024    public 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    }