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Java > Open Source Codes > org > infoglue > cms > workflow > taglib > PropertySetTag


1 /* ===============================================================================
2 *
3 * Part of the InfoGlue Content Management Platform (www.infoglue.org)
4 *
5 * ===============================================================================
6 *
7 * Copyright (C)
8 *
9 * This program is free software; you can redistribute it and/or modify it under
10 * the terms of the GNU General Public License version 2, as published by the
11 * Free Software Foundation. See the file LICENSE.html for more information.
12 *
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY, including the implied warranty of MERCHANTABILITY or FITNESS
15 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc. / 59 Temple
19 * Place, Suite 330 / Boston, MA 02111-1307 / USA.
20 *
21 * ===============================================================================
22 */
23
24 package org.infoglue.cms.workflow.taglib;
25
26 import javax.servlet.jsp.JspException JavaDoc;
27
28 /**
29  * This class implements the <iw:property> tag, which fetches a value from the propertyset
30  * associated with the workflow and
31  *
32  * - stores it as a string in a page context variable (if the <code>id</code> attribute is set).
33  * - writes the value to the output stream.
34  */
35 public class PropertySetTag extends WorkflowTag
36 {
37     /**
38      * The universal version identifier.
39      */
40     private static final long serialVersionUID = -5671251095976313163L;
41
42     /**
43      * The lookup key.
44      */
45     private String JavaDoc key;
46     
47     /**
48      * Default constructor.
49      */
50     public PropertySetTag()
51     {
52         super();
53     }
54
55     /**
56      * Process the end tag. Fetches the value from the propertyset using the specified key and
57      * either stores the result in a context variable or writes it to the output stream.
58      *
59      * @return indication of whether to continue evaluating the JSP page.
60      * @throws JspException if an error occurs when producing the result.
61      */
62     public int doEndTag() throws JspException JavaDoc {
63         produceResult(getPropertySet().getAsString(key));
64         return EVAL_PAGE;
65     }
66
67     /**
68      * Sets the key attribute to the specified key.
69      *
70      * @param key the key to use.
71      */
72     public void setKey(final String JavaDoc key)
73     {
74         this.key = key;
75     }
76 }
77
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