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Java > Open Source Codes > org > apache > cayenne > map > event > AttributeEvent


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19
20 package org.apache.cayenne.map.event;
21
22 import org.apache.cayenne.map.Attribute;
23 import org.apache.cayenne.map.Entity;
24
25 /**
26  * Represents events resulted from Attribute changes
27  * in CayenneModeler. This event is used for both ObjAttributes
28  * and DbAttributes.
29  *
30  * @author Misha Shengaout
31  * @author Andrus Adamchik
32  */
33 public class AttributeEvent extends EntityEvent {
34     protected Attribute attribute;
35
36     /** Creates a Attribute change event. */
37     public AttributeEvent(Object JavaDoc src, Attribute attr, Entity entity) {
38         super(src, entity);
39         setAttribute(attr);
40     }
41
42     /** Creates a Attribute event of a specified type. */
43     public AttributeEvent(Object JavaDoc src, Attribute attr, Entity entity, int id) {
44         this(src, attr, entity);
45         setId(id);
46     }
47
48     /** Creates a Attribute name change event.*/
49     public AttributeEvent(Object JavaDoc src, Attribute attr, Entity entity, String JavaDoc oldName) {
50
51         this(src, attr, entity);
52         setOldName(oldName);
53     }
54
55     /** Get attribute (obj or db). */
56     public Attribute getAttribute() {
57         return attribute;
58     }
59
60     /**
61      * Sets the attribute.
62      * @param attribute The attribute to set
63      */
64     public void setAttribute(Attribute attribute) {
65         this.attribute = attribute;
66     }
67
68     public String JavaDoc getNewName() {
69         return (attribute != null) ? attribute.getName() : null;
70     }
71 }
72
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