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


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56 package org.objectstyle.cayenne.map.event;
57
58 import org.objectstyle.cayenne.map.Attribute;
59 import org.objectstyle.cayenne.map.Entity;
60
61 /**
62  * Represents events resulted from Attribute changes
63  * in CayenneModeler. This event is used for both ObjAttributes
64  * and DbAttributes.
65  *
66  * @author Misha Shengaout
67  * @author Andrei Adamchik
68  */
69 public class AttributeEvent extends EntityEvent {
70     protected Attribute attribute;
71
72     /** Creates a Attribute change event. */
73     public AttributeEvent(Object JavaDoc src, Attribute attr, Entity entity) {
74         super(src, entity);
75         setAttribute(attr);
76     }
77
78     /** Creates a Attribute event of a specified type. */
79     public AttributeEvent(Object JavaDoc src, Attribute attr, Entity entity, int id) {
80         this(src, attr, entity);
81         setId(id);
82     }
83
84     /** Creates a Attribute name change event.*/
85     public AttributeEvent(Object JavaDoc src, Attribute attr, Entity entity, String JavaDoc oldName) {
86
87         this(src, attr, entity);
88         setOldName(oldName);
89     }
90
91     /** Get attribute (obj or db). */
92     public Attribute getAttribute() {
93         return attribute;
94     }
95
96     /**
97      * Sets the attribute.
98      * @param attribute The attribute to set
99      */
100     public void setAttribute(Attribute attribute) {
101         this.attribute = attribute;
102     }
103
104     public String JavaDoc getNewName() {
105         return (attribute != null) ? attribute.getName() : null;
106     }
107 }
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