001// Copyright 2006, 2007, 2008, 2009 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.tapestry5.http.services;
016
017import java.io.IOException;
018
019/**
020 * Filter interface for {@link org.apache.tapestry5.http.services.RequestHandler}. Implementations of this interface may be
021 * contributed into the RequestHandler service configuration.
022 */
023public interface RequestFilter
024{
025    /**
026     * Returns true if the request has been handled, false otherwise.
027     */
028    boolean service(Request request, Response response, RequestHandler handler) throws IOException;
029
030}