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Java > Open Source Codes > net > mlw > vlh > web > tag > support > Attributes


1 /**
2  * Copyright (c) 2003 held jointly by the individual authors.
3  *
4  * This library is free software; you can redistribute it and/or modify it under
5  * the terms of the GNU Lesser General Public License as published by the Free
6  * Software Foundation; either version 2.1 of the License, or (at your option)
7  * any later version.
8  *
9  * This library is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
12  * for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public License
15  * along with this library; if not, write to the Free Software Foundation, Inc.,
16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. >
17  * http://www.gnu.org/copyleft/lesser.html >
18  * http://www.opensource.org/licenses/lgpl-license.php
19  */
20 package net.mlw.vlh.web.tag.support;
21
22 import java.util.HashMap JavaDoc;
23 import java.util.Map JavaDoc;
24
25 import net.mlw.vlh.web.util.JspUtils;
26
27 /**
28  * Holds a map of attributes.
29  *
30  * @author Matthew L. Wilson
31  * @version $Revision: 1.4 $ $Date: 2005/08/19 16:06:30 $
32  */
33 public class Attributes implements Attributeable
34 {
35     private Map JavaDoc attributes = new HashMap JavaDoc();
36
37     /**
38      * Default constructore.
39      */
40     public Attributes()
41     {
42
43     }
44
45     /**
46      * @see net.mlw.vlh.web.tag.support.Attributeable#setAttribute(java.lang.String,
47      * java.lang.String)
48      */
49     public void setCellAttribute(String JavaDoc name, String JavaDoc value)
50     {
51         attributes.put(name, value);
52     }
53
54     /**
55      * returns a String in the form or nameX="valueX".
56      *
57      * @return A String in the form or nameX="valueX".
58      */
59     public String JavaDoc getCellAttributesAsString()
60     {
61         return JspUtils.toAttributesString(attributes);
62     }
63
64     public Map JavaDoc getMap()
65     {
66         return attributes;
67     }
68
69     /**
70      * reset this bean.
71      */
72     public void reset()
73     {
74         attributes.clear();
75     }
76
77     /**
78      * Append with the space to existing non null or empty key's value. If not exist key, uses
79      * setCellAttribute Ussually used with "class" attributes.
80      *
81      * @param key
82      * @param style to append
83      * @see #setCellAttribute(String, String)
84      */
85     public void appendCellAttribute(String JavaDoc key, String JavaDoc style)
86     {
87         if (attributes.containsKey(key))
88         {
89             String JavaDoc current = (String JavaDoc) attributes.get(key);
90             if (current!=null && current.length()>0){
91                 attributes.put(key, current + " " + style);
92             } else {
93                setCellAttribute(key, style);
94             }
95         }
96         else
97         {
98             setCellAttribute(key, style);
99         }
100
101     }
102 }
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