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Java > Open Source Codes > org > apache > cayenne > reflect > IndexedListProperty


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19
20 package org.apache.cayenne.reflect;
21
22 import java.util.List JavaDoc;
23
24 import org.apache.cayenne.ValueHolder;
25 import org.apache.cayenne.util.IndexPropertyList;
26
27 /**
28  * A CollectionProperty that uses IndexPropertyList.
29  *
30  * @since 1.2
31  * @author Andrus Adamchik
32  */

33 public class IndexedListProperty extends ListProperty {
34
35     protected String JavaDoc indexPropertyName;
36
37     public IndexedListProperty(ClassDescriptor owner, ClassDescriptor targetDescriptor,
38             Accessor accessor, String JavaDoc reverseName, String JavaDoc indexPropertyName) {
39
40         super(owner, targetDescriptor, accessor, reverseName);
41         this.indexPropertyName = indexPropertyName;
42     }
43
44     /**
45      * Creates a List indexed on a specified property.
46      */

47     protected ValueHolder createCollectionValueHolder(Object JavaDoc object)
48             throws PropertyException {
49         List JavaDoc unordered = (List JavaDoc) super.createCollectionValueHolder(object);
50         return new IndexPropertyList(indexPropertyName, unordered, true);
51     }
52 }
53
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