1 /* 2 * $Id: StringRenderer.java 1215008 2011-12-16 00:31:49Z nlebas $ 3 * 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 package org.apache.tiles.request.render; 22 23 import java.io.IOException; 24 25 import org.apache.tiles.request.Request; 26 27 /** 28 * Renders an attribute that contains a string. 29 * 30 * @version $Rev: 1215008 $ $Date: 2011-12-16 11:31:49 +1100 (Fri, 16 Dec 2011) $ 31 */ 32 public class StringRenderer implements Renderer { 33 34 /** {@inheritDoc} */ 35 @Override 36 public void render(String value, Request request) throws IOException { 37 if (value == null) { 38 throw new CannotRenderException("Cannot render a null string"); 39 } 40 request.getWriter().write(value); 41 } 42 43 /** {@inheritDoc} */ 44 public boolean isRenderable(String value, Request request) { 45 return value != null; 46 } 47 }