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1 /* 2 * $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/Tag.java,v 1.8 2002/06/26 09:43:31 jstrachan Exp $ 3 * $Revision: 1.8 $ 4 * $Date: 2002/06/26 09:43:31 $ 5 * 6 * ==================================================================== 7 * 8 * The Apache Software License, Version 1.1 9 * 10 * Copyright (c) 1999-2002 The Apache Software Foundation. All rights 11 * reserved. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in 22 * the documentation and/or other materials provided with the 23 * distribution. 24 * 25 * 3. The end-user documentation included with the redistribution, if 26 * any, must include the following acknowlegement: 27 * "This product includes software developed by the 28 * Apache Software Foundation (http://www.apache.org/)." 29 * Alternately, this acknowlegement may appear in the software itself, 30 * if and wherever such third-party acknowlegements normally appear. 31 * 32 * 4. The names "The Jakarta Project", "Commons", and "Apache Software 33 * Foundation" must not be used to endorse or promote products derived 34 * from this software without prior written permission. For written 35 * permission, please contact apache@apache.org. 36 * 37 * 5. Products derived from this software may not be called "Apache" 38 * nor may "Apache" appear in their names without prior written 39 * permission of the Apache Group. 40 * 41 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 42 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 43 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 44 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 47 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 48 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 49 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 50 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 51 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 52 * SUCH DAMAGE. 53 * ==================================================================== 54 * 55 * This software consists of voluntary contributions made by many 56 * individuals on behalf of the Apache Software Foundation. For more 57 * information on the Apache Software Foundation, please see 58 * <http://www.apache.org/>;. 59 * 60 * $Id: Tag.java,v 1.8 2002/06/26 09:43:31 jstrachan Exp $ 61 */ 62 63 package org.apache.commons.jelly; 64 65 /*** <p><code>Tag</code> represents a Jelly custom tag.</p> 66 * 67 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> 68 * @version $Revision: 1.8 $ 69 */ 70 71 public interface Tag { 72 73 /*** 74 * @return the parent of this tag 75 */ 76 public Tag getParent(); 77 78 /*** 79 * Sets the parent of this tag 80 */ 81 public void setParent(Tag parent); 82 83 /*** 84 * @return the body of the tag 85 */ 86 public Script getBody(); 87 88 /*** 89 * Sets the body of the tag 90 */ 91 public void setBody(Script body); 92 93 /*** 94 * Gets the context in which the tag will be run 95 */ 96 public JellyContext getContext(); 97 98 /*** 99 * Sets the context in which the tag will be run 100 */ 101 public void setContext(JellyContext context) throws Exception; 102 103 /*** 104 * Evaluates this tag after all the tags properties have been initialized. 105 */ 106 public void doTag(XMLOutput output) throws Exception; 107 108 /*** 109 * A helper method to invoke this tags body 110 */ 111 public void invokeBody(XMLOutput output) throws Exception; 112 113 }

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