001    /** 
002     * 
003     * Copyright 2004 Protique Ltd
004     * 
005     * Licensed under the Apache License, Version 2.0 (the "License"); 
006     * you may not use this file except in compliance with the License. 
007     * You may obtain a copy of the License at 
008     * 
009     * http://www.apache.org/licenses/LICENSE-2.0
010     * 
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS, 
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
014     * See the License for the specific language governing permissions and 
015     * limitations under the License. 
016     * 
017     **/
018    
019    package org.activemq.service;
020    
021    import javax.jms.JMSException;
022    
023    /**
024     * <p><code>Service</code> represents some service of some kind with a simple start/stop lifecycle.</p>
025     * <b>Note</b> that usually once a service has been stopped it should be discarded and a new service
026     * instance created again.
027     *
028     * @version $Revision: 1.1.1.1 $
029     */
030    public interface Service {
031    
032        /**
033         * Called to start the service
034         *
035         * @throws JMSException
036         */
037        public void start() throws JMSException;
038    
039        /**
040         * Called to shutdown the service
041         *
042         * @throws JMSException
043         */
044        public void stop() throws JMSException;
045    
046    }