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


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56 package org.objectstyle.cayenne.map.event;
57
58 import org.objectstyle.cayenne.map.Entity;
59 import org.objectstyle.cayenne.map.Relationship;
60
61 /**
62  * Represents events resulted from Relationship changes
63  * in CayenneModeler. This event is used for both ObjRelationships
64  * and DbRelationships.
65  *
66  *
67  * @author Misha Shengaout
68  * @author Andrei Adamchik
69  */

70 public class RelationshipEvent extends EntityEvent {
71     protected Relationship relationship;
72
73     /** Creates a Relationship change event. */
74     public RelationshipEvent(Object JavaDoc src, Relationship rel, Entity entity) {
75         super(src, entity);
76         setRelationship(rel);
77     }
78
79     /** Creates a Relationship event of a specified type. */
80     public RelationshipEvent(
81         Object JavaDoc src,
82         Relationship rel,
83         Entity entity,
84         int id) {
85
86         this(src, rel, entity);
87         setId(id);
88     }
89
90     /** Creates a Relationship name change event. */
91     public RelationshipEvent(
92         Object JavaDoc src,
93         Relationship rel,
94         Entity entity,
95         String JavaDoc oldName) {
96             
97         this(src, rel, entity);
98         setOldName(oldName);
99     }
100
101     /** Returns relationship associated with this event. */
102     public Relationship getRelationship() {
103         return relationship;
104     }
105
106     /**
107      * Sets relationship associated with this event.
108      *
109      * @param relationship The relationship to set
110      */

111     public void setRelationship(Relationship relationship) {
112         this.relationship = relationship;
113     }
114     
115     public String JavaDoc getNewName() {
116         return (relationship != null) ? relationship.getName() : null;
117     }
118 }
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