001 // Copyright 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. 014 015 package org.apache.tapestry5.corelib.components; 016 017 import org.apache.tapestry5.BindingConstants; 018 import org.apache.tapestry5.MarkupWriter; 019 import org.apache.tapestry5.annotations.Parameter; 020 021 /** 022 * Overrides the DOCTYPE of the rendered document (via {@link org.apache.tapestry5.dom.Document#dtd(String, String, String)} 023 * which can be useful when different component templates that render to the same document disagree about what the correct DOCTYPE 024 * is. 025 * 026 * @tapestrydoc 027 * @since 5.3 028 */ 029 public class Doctype 030 { 031 @Parameter(required = true, allowNull = false, defaultPrefix = BindingConstants.LITERAL) 032 private String name; 033 034 @Parameter(defaultPrefix = BindingConstants.LITERAL) 035 private String publicId, systemId; 036 037 boolean beginRender(MarkupWriter writer) 038 { 039 writer.getDocument().dtd(name, publicId, systemId); 040 041 return false; 042 } 043 }