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Java > Open Source Codes > org > openharmonise > vfs > metadata > Range


1 /*
2  * The contents of this file are subject to the
3  * Mozilla Public License Version 1.1 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at http://www.mozilla.org/MPL/
6  *
7  * Software distributed under the License is distributed on an "AS IS"
8  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
9  * See the License for the specific language governing rights and
10  * limitations under the License.
11  *
12  * The Initial Developer of the Original Code is Simulacra Media Ltd.
13  * Portions created by Simulacra Media Ltd are Copyright (C) Simulacra Media Ltd, 2004.
14  *
15  * All Rights Reserved.
16  *
17  * Contributor(s):
18  */
19 package org.openharmonise.vfs.metadata;
20
21 import java.util.List JavaDoc;
22
23 import org.w3c.dom.Element JavaDoc;
24
25 /**
26  * A range describes the valid values that a property instance can contain.
27  * The Range interface is implemented to provide specific data handling for
28  * a type of property. Ranges are stored as metadata on the
29  * {@link org.openharmonise.vfs.VirtualFile}s for {@link Property} objects.
30  *
31  * @author Matthew Large
32  * @version $Revision: 1.1 $
33  *
34  */
35 public interface Range {
36
37     /**
38      * Populates this range from a XML element.
39      *
40      * @param elRange Root element of range XML
41      */
42     public void instantiate(Element JavaDoc elRange);
43     
44     /**
45      * Validates a single value using the restrictions described by this
46      * range.
47      *
48      * @param val Value
49      * @return Validation result
50      */
51     public ValidationResult validate(ValueInstance val);
52     
53     /**
54      * Validates a list of values using the restrictions described by this
55      * range.
56      *
57      * @param aValues
58      * @return Validation result
59      */
60     public ValidationResult validate(List JavaDoc aValues);
61
62 }
63
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