/*
 *  Copyright 1999-2004 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.apache.coyote;


/**
 * Adapter.
 *
 * @author Remy Maucherat
 */
public interface Adapter {


    /** 
     * Call the service method, and notify all listeners
     *
     * @exception Exception if an error happens during handling of
     *   the request. Common errors are:
     *   
IOException if an input/output error occurs and we are
     *   processing an included servlet (otherwise it is swallowed and
     *   handled by the top level error handler mechanism)
     *       
ServletException if a servlet throws an exception and
     *  we are processing an included servlet (otherwise it is swallowed
     *  and handled by the top level error handler mechanism)
     *  
     *  Tomcat should be able to handle and log any other exception ( including
     *  runtime exceptions )
     */
    public void service(Request req, Response res)
	throws Exception;


}