001// Copyright 2004, 2005 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.tapestry.services;
016
017import org.apache.tapestry.IEngine;
018import org.apache.tapestry.IRequestCycle;
019
020/**
021 * A factory for creating instances of {@link org.apache.tapestry.IRequestCycle}for the current
022 * request.
023 * 
024 * @author Howard M. Lewis Ship
025 * @since 4.0
026 */
027public interface RequestCycleFactory
028{
029    /**
030     * Constructs the new instance using the request context. This includes accessing
031     * {@link org.apache.tapestry.engine.ServiceEncoder}s to restore any missing query parameters
032     * (that were encoding into the URL).
033     */
034
035    public IRequestCycle newRequestCycle(IEngine engine);
036}