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


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19
20 package org.apache.cayenne.reflect;
21
22 /**
23  * A convenience base superclass for {@link ToOneProperty} implementors.
24  *
25  * @since 3.0
26  * @author Andrus Adamchik
27  */
28 public abstract class BaseToOneProperty extends BaseArcProperty implements ToOneProperty {
29
30     public BaseToOneProperty(ClassDescriptor owner, ClassDescriptor targetDescriptor,
31             Accessor accessor, String JavaDoc reverseName) {
32         super(owner, targetDescriptor, accessor, reverseName);
33     }
34
35     public void setTarget(Object JavaDoc source, Object JavaDoc target, boolean setReverse) {
36         Object JavaDoc oldTarget = readProperty(source);
37         if (oldTarget == target) {
38             return;
39         }
40
41         // TODO, Andrus, 2/9/2006 - CayenneDataObject also invokes "willConnect" and has a
42 // callback to ObjectStore to handle flattened....
43
44         if (setReverse) {
45             setReverse(source, oldTarget, target);
46         }
47
48         writeProperty(source, oldTarget, target);
49     }
50
51     public boolean visit(PropertyVisitor visitor) {
52         return visitor.visitToOne(this);
53     }
54 }
55
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