KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > freemarker > template > TemplateMethodModel


1 /*
2  * Copyright (c) 2003 The Visigoth Software Society. All rights
3  * reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * 1. Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  *
12  * 2. Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in
14  * the documentation and/or other materials provided with the
15  * distribution.
16  *
17  * 3. The end-user documentation included with the redistribution, if
18  * any, must include the following acknowledgement:
19  * "This product includes software developed by the
20  * Visigoth Software Society (http://www.visigoths.org/)."
21  * Alternately, this acknowledgement may appear in the software itself,
22  * if and wherever such third-party acknowledgements normally appear.
23  *
24  * 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the
25  * project contributors may be used to endorse or promote products derived
26  * from this software without prior written permission. For written
27  * permission, please contact visigoths@visigoths.org.
28  *
29  * 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
30  * nor may "FreeMarker" or "Visigoth" appear in their names
31  * without prior written permission of the Visigoth Software Society.
32  *
33  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
34  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
35  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
36  * DISCLAIMED. IN NO EVENT SHALL THE VISIGOTH SOFTWARE SOCIETY OR
37  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
38  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
39  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
40  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
41  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
42  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
43  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44  * SUCH DAMAGE.
45  * ====================================================================
46  *
47  * This software consists of voluntary contributions made by many
48  * individuals on behalf of the Visigoth Software Society. For more
49  * information on the Visigoth Software Society, please see
50  * http://www.visigoths.org/
51  */
52
53 /*
54  * 22 October 1999: This class added by Holger Arendt.
55  */
56
57 package freemarker.template;
58
59 import java.util.List JavaDoc;
60
61 /**
62  * Objects that act as methods in a template data model must implement this
63  * interface.
64  *
65  * <P>Implementions of <tt>TemplateMethodModel</tt> should be thread-safe.
66  *
67  * @version $Id: TemplateMethodModel.java,v 1.11 2003/09/22 23:56:54 revusky Exp $
68  */
69 public interface TemplateMethodModel extends TemplateModel {
70
71     /**
72      * Executes a method call. All arguments passed to the method call are
73      * treated as {@link TemplateScalarModel}s, and evaluated to Strings
74      * before being passed. If some of the passed arguments is not a scalar,
75      * an exception will occur and the method will not be called.
76      * If your method would like to act on actual data model objects instead
77      * of on their String representations, implement the
78      * {@link TemplateMethodModelEx} instead.
79      * @param arguments a <tt>List</tt> of <tt>String</tt> objects
80      * containing the values of the arguments passed to the method.
81      * @return the <tt>TemplateModel</tt> produced by the method, or null.
82      */
83     public Object JavaDoc exec(List JavaDoc arguments) throws TemplateModelException;
84 }
85
Popular Tags