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Java > Open Source Codes > org > apache > struts > tiles > xmlDefinition > XmlListAttribute


1 /*
2  * $Id: XmlListAttribute.java 54929 2004-10-16 16:38:42Z germuska $
3  *
4  * Copyright 1999-2004 The Apache Software Foundation.
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18
19
20 package org.apache.struts.tiles.xmlDefinition;
21
22 import java.util.ArrayList JavaDoc;
23 import java.util.List JavaDoc;
24
25
26 /**
27  * An attribute as a <code>List</code>.
28  * This attribute associates a name with a list. The list can be found by the
29  * property name.
30  * Elements in list are retrieved using List methods.
31  * This class is used to read configuration files.
32  */
33 public class XmlListAttribute extends XmlAttribute
34 {
35     /** List.
36      * We declare a List to avoid cast.
37      * Parent "value" property points to the same list.
38      */
39   private List JavaDoc list;
40
41     /**
42      * Constructor.
43      */
44   public XmlListAttribute()
45     {
46     list = new ArrayList JavaDoc();
47     setValue(list);
48     }
49
50     /**
51      * Constructor.
52      * @param name Name.
53      * @param value List.
54      */
55   public XmlListAttribute( String JavaDoc name, List JavaDoc value)
56     {
57     super( name, value );
58     list = value;
59     }
60
61     /**
62      * Add an element in list.
63      * We use a property to avoid rewriting a new class.
64      * @param element XmlAttribute to add.
65      */
66   public void add( XmlAttribute element )
67     {
68     list.add( element.getValue() );
69     }
70
71     /**
72      * Add an element in list.
73      * @param value Object to add.
74      */
75   public void add( Object JavaDoc value )
76     {
77     //list.add( value );
78 // To correct a bug in digester, we need to check the object type
79 // Digester doesn't call correct method according to object type ;-(
80 if(value instanceof XmlAttribute)
81       {
82       add((XmlAttribute)value);
83       return;
84       }
85      else
86       list.add( value );
87     }
88
89     /**
90      * Add an element in list.
91      * @param value Object to add.
92      */
93   public void addObject( Object JavaDoc value )
94     {
95     list.add( value );
96     }
97
98
99
100 }
101
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