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.engine; 016 017import org.apache.tapestry.web.WebRequest; 018 019/** 020 * Interface for an object that can create a {@link IMonitor} instance for a particular 021 * {@link org.apache.tapestry.request.RequestContext}. The engine expects there to be a monitor 022 * factory as application extension <code>org.apache.tapestry.monitor-factory</code>. If no such 023 * extension exists, then {@link org.apache.tapestry.engine.DefaultMonitorFactory}is used instead. 024 * 025 * @author Howard Lewis Ship 026 * @since 3.0 027 * @deprecated To be removed in 4.1 with no direct replacement. 028 */ 029public interface IMonitorFactory 030{ 031 /** 032 * Create a new {@link IMonitor}instance. Alternately, return a shared instance. This method 033 * may be invoked by multiple threads. 034 */ 035 036 public IMonitor createMonitor(WebRequest request); 037}