    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.services;
    016
    017import java.io.IOException;
    018
    019/**
    020 * Filter interface for {@link org.apache.tapestry5.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}