001// Copyright 2006, 2007, 2008, 2011 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.internal.services; 016 017import org.apache.tapestry5.Link; 018import org.apache.tapestry5.ioc.annotations.Primary; 019import org.apache.tapestry5.services.ComponentEventResultProcessor; 020import org.apache.tapestry5.services.Traditional; 021 022import java.io.IOException; 023 024/** 025 * Used when a component event handler returns a string value. The value is interpreted as the logical name of a page. A 026 * link to the page will be sent as a redirect. 027 */ 028public class PageNameComponentEventResultProcessor implements ComponentEventResultProcessor<String> 029{ 030 private final LinkSource linkSource; 031 032 private final ComponentEventResultProcessor primary; 033 034 public PageNameComponentEventResultProcessor(LinkSource linkSource, 035 @Traditional @Primary 036 ComponentEventResultProcessor primary) 037 { 038 this.linkSource = linkSource; 039 this.primary = primary; 040 } 041 042 public void processResultValue(String value) throws IOException 043 { 044 Link link = linkSource.createPageRenderLink(value, false); 045 046 primary.processResultValue(link); 047 } 048}