1 /*
2 * $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/taglibs/beanshell/src/java/org/apache/commons/jelly/tags/beanshell/BeanShellExpressionFactory.java,v 1.1 2002/05/21 07:58:55 jstrachan Exp $
3 * $Revision: 1.1 $
4 * $Date: 2002/05/21 07:58:55 $
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: BeanShellExpressionFactory.java,v 1.1 2002/05/21 07:58:55 jstrachan Exp $
61 */
62
63 package org.apache.commons.jelly.tags.define;
64
65 import java.lang.reflect.Method;
66
67 import org.apache.commons.beanutils.MethodUtils;
68
69 import org.apache.commons.jelly.JellyException;
70 import org.apache.commons.jelly.MissingAttributeException;
71 import org.apache.commons.jelly.XMLOutput;
72
73 import org.apache.commons.logging.Log;
74 import org.apache.commons.logging.LogFactory;
75
76
77 /***
78 * Binds a Java bean to the given named Jelly tag so that the attributes of
79 * the tag set the bean properties. After the body of this tag is invoked
80 * then the beans invoke() method will be called, if the bean has one.
81 *
82 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
83 * @version $Revision: 1.1 $
84 */
85 public class JellyBeanTag extends BeanTag {
86
87 /*** The Log to which logging calls will be made. */
88 private static final Log log = LogFactory.getLog(JellyBeanTag.class);
89
90 /*** Empty parameter types for Method lookup */
91 private static final Class[] emptyParamTypes = {};
92
93 /*** the name of the method to invoke on the bean */
94 private String method;
95
96 // Properties
97 //-------------------------------------------------------------------------
98
99 /***
100 * @return the method name to use, which defaults to 'run' for Runnable
101 * objects
102 */
103 public String getMethod() {
104 if ( method == null ) {
105 return "run";
106 }
107 return method;
108 }
109
110 /***
111 * Sets the name of the method to invoke on the bean.
112 * This defaults to "run" so that Runnable objects can be
113 * invoked, but this property can be set to whatever is required,
114 * such as "execute" or "invoke"
115 */
116 public void setMethod(String method) {
117 this.method = method;
118 }
119
120
121 // Implementation methods
122 //-------------------------------------------------------------------------
123
124 protected Method getInvokeMethod( Class theClass ) throws Exception {
125 Method invokeMethod =
126 MethodUtils.getAccessibleMethod(
127 theClass,
128 getMethod(),
129 emptyParamTypes);
130
131 if ( invokeMethod == null ) {
132 }
133 return invokeMethod;
134 }
135 }
This page was automatically generated by Maven