1 /*
2 * $Header: $
3 * $Revision: 1.0 $
4 * $Date: $
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: $
61 */
62 package org.apache.commons.jelly.tags.dynabean;
63
64 import java.io.IOException;
65 import java.io.Writer;
66 import java.util.ArrayList;
67 import java.util.Iterator;
68 import java.util.List;
69
70 import org.apache.commons.jelly.JellyContext;
71 import org.apache.commons.jelly.Script;
72 import org.apache.commons.jelly.Tag;
73 import org.apache.commons.jelly.TagSupport;
74 import org.apache.commons.jelly.XMLOutput;
75 import org.apache.commons.jelly.impl.ScriptBlock;
76 import org.apache.commons.jelly.impl.TagScript;
77 import org.apache.commons.jelly.expression.Expression;
78
79 import org.apache.commons.jelly.JellyException;
80 import org.apache.commons.jelly.MissingAttributeException;
81 import org.apache.commons.beanutils.*;
82
83
84 /*** A tag which conditionally evaluates its body based on some condition
85 *
86 * @author Theo Niemeijer
87 * @version $Revision: 1.6 $
88 */
89 public class DynabeanTag extends TagSupport {
90
91 private DynaClass dynaClass;
92 private String var;
93
94 public DynabeanTag() {
95 }
96
97 // Tag interface
98 //-------------------------------------------------------------------------
99 public void doTag(XMLOutput output) throws Exception {
100
101 if (dynaClass == null) {
102 throw new MissingAttributeException( "dynaclass" );
103 }
104
105 if (var == null) {
106 throw new MissingAttributeException( "var" );
107 }
108
109 // Create dynabean instance for this dynaclass
110 DynaBean dynaBean = dynaClass.newInstance();
111
112 // Place new dynabean in context as a variable
113 context.setVariable(getVar(), dynaBean);
114 }
115
116 // Properties
117 //-------------------------------------------------------------------------
118
119 /***
120 * Sets the DynaClass of the new instance to create
121 */
122 public void setDynaclass(DynaClass dynaClass) {
123 this.dynaClass = dynaClass;
124 }
125
126 public String getVar() {
127 return var;
128 }
129
130 /***
131 * Sets the name of the variable to export the new DynaBean instance to
132 */
133 public void setVar(String var) {
134 this.var = var;
135 }
136
137
138 }
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