1 // Copyright 2005 The Apache Software Foundation 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package org.apache.tapestry.event; 16 17 import java.util.EventListener; 18 19 /** 20 * Event listener for determining when a page is about to start rendering. Rendering includes the 21 * replay of a form to handle form submissions. 22 * 23 * @author Howard M. Lewis Ship 24 * @since 4.0 25 */ 26 public interface PageBeginRenderListener extends EventListener 27 { 28 /** 29 * Invoked before just before the page renders a response. This provides listeners with a last 30 * chance to initialize themselves for the render. This initialization can include modifying 31 * peristent page properties. 32 */ 33 34 public void pageBeginRender(PageEvent event); 35 }