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Java > Open Source Codes > org > apache > fop > fo > properties > ListProperty


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18 /* $Id: ListProperty.java 426576 2006-07-28 15:44:37Z jeremias $ */
19
20 package org.apache.fop.fo.properties;
21
22 import java.util.List JavaDoc;
23
24 import org.apache.fop.fo.FObj;
25 import org.apache.fop.fo.PropertyList;
26
27 /**
28  * Superclass for properties that are lists of other properties
29  */
30 public class ListProperty extends Property {
31
32     /**
33      * Inner class for creating instances of ListProperty
34      */
35     public static class Maker extends PropertyMaker {
36
37         /**
38          * @param propId ID of the property for which Maker should be created
39          */
40         public Maker(int propId) {
41             super(propId);
42         }
43
44         /**
45          * @see PropertyMaker#convertProperty
46          */
47         public Property convertProperty(Property p,
48                                         PropertyList propertyList, FObj fo) {
49             if (p instanceof ListProperty) {
50                 return p;
51             } else {
52                 return new ListProperty(p);
53             }
54         }
55
56     }
57
58     /** Vector containing the list of sub-properties */
59     protected List JavaDoc list = new java.util.Vector JavaDoc();
60
61     /**
62      * Simple constructor used by subclasses to do some special processing.
63      */
64     protected ListProperty() {
65         //nop
66 }
67     
68     /**
69      * @param prop the first Property to be added to the list
70      */
71     public ListProperty(Property prop) {
72         this();
73         addProperty(prop);
74     }
75
76     /**
77      * Add a new property to the list
78      * @param prop Property to be added to the list
79      */
80     public void addProperty(Property prop) {
81         list.add(prop);
82     }
83
84     /**
85      * @return this.list
86      */
87     public List JavaDoc getList() {
88         return list;
89     }
90
91     /**
92      * @return this.list cast as an Object
93      */
94     public Object JavaDoc getObject() {
95         return list;
96     }
97
98 }
99
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