1 /* 2 * $Id: ModelBody.java 1044817 2010-12-12 13:22:01Z apetrelli $ 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.autotag.core.runtime; 22 23 import java.io.IOException; 24 import java.io.Writer; 25 26 /** 27 * Abstracts a tag/directive body. 28 * 29 * @version $Rev: 1044817 $ $Date: 2010-12-12 14:22:01 +0100 (Sun, 12 Dec 2010) $ 30 */ 31 public interface ModelBody { 32 33 /** 34 * Evaluates a body and returns it as a string. 35 * 36 * @return The body, as a string. 37 * @throws IOException If something goes wrong. 38 */ 39 String evaluateAsString() throws IOException; 40 41 /** 42 * Evaluates a body, but discards result. 43 * 44 * @throws IOException If something goes wrong. 45 */ 46 void evaluateWithoutWriting() throws IOException; 47 48 /** 49 * Evaluates the body and writes in the default writer. 50 * 51 * @throws IOException If something goes wrong. 52 */ 53 void evaluate() throws IOException; 54 55 /** 56 * Evaluates the body and writes the result in the writer. 57 * 58 * @param writer The writer to write the result into. 59 * @throws IOException If something goes wrong. 60 */ 61 void evaluate(Writer writer) throws IOException; 62 }