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


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19
20 package org.apache.cayenne.map.event;
21
22 import org.apache.cayenne.map.Entity;
23 import org.apache.cayenne.map.Relationship;
24
25 /**
26  * Represents events resulted from Relationship changes
27  * in CayenneModeler. This event is used for both ObjRelationships
28  * and DbRelationships.
29  *
30  *
31  * @author Misha Shengaout
32  * @author Andrus Adamchik
33  */
34 public class RelationshipEvent extends EntityEvent {
35     protected Relationship relationship;
36
37     /** Creates a Relationship change event. */
38     public RelationshipEvent(Object JavaDoc src, Relationship rel, Entity entity) {
39         super(src, entity);
40         setRelationship(rel);
41     }
42
43     /** Creates a Relationship event of a specified type. */
44     public RelationshipEvent(
45         Object JavaDoc src,
46         Relationship rel,
47         Entity entity,
48         int id) {
49
50         this(src, rel, entity);
51         setId(id);
52     }
53
54     /** Creates a Relationship name change event. */
55     public RelationshipEvent(
56         Object JavaDoc src,
57         Relationship rel,
58         Entity entity,
59         String JavaDoc oldName) {
60             
61         this(src, rel, entity);
62         setOldName(oldName);
63     }
64
65     /** Returns relationship associated with this event. */
66     public Relationship getRelationship() {
67         return relationship;
68     }
69
70     /**
71      * Sets relationship associated with this event.
72      *
73      * @param relationship The relationship to set
74      */
75     public void setRelationship(Relationship relationship) {
76         this.relationship = relationship;
77     }
78     
79     public String JavaDoc getNewName() {
80         return (relationship != null) ? relationship.getName() : null;
81     }
82 }
83
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