001    // Copyright 2006, 2007, 2008 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.tapestry5.services;
016    
017    import org.apache.tapestry5.ioc.annotations.UsesOrderedConfiguration;
018    
019    import java.io.IOException;
020    
021    /**
022     * Service interface for the RequestHandler {@linkplain org.apache.tapestry5.ioc.services.PipelineBuilder pipeline}
023     * service. At the end of the pipeline, the service hands off to the {@linkplain org.apache.tapestry5.services.Dispatcher
024     * master dispatcher service}.
025     */
026    @UsesOrderedConfiguration(RequestFilter.class)
027    public interface RequestHandler
028    {
029        /**
030         * Returns true if the request has been handled, false otherwise.
031         */
032        boolean service(Request request, Response response) throws IOException;
033    }