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Java > Open Source Codes > org > apache > cayenne > access > DbLoaderDelegate


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19
20 package org.apache.cayenne.access;
21
22 import org.apache.cayenne.CayenneException;
23 import org.apache.cayenne.map.DbEntity;
24 import org.apache.cayenne.map.ObjEntity;
25
26 /**
27  * DbLoaderDelegate defines API that allows to control the behavior of DbLoader during the
28  * database reverse-engineering. Delegate is also notified of the progress of
29  * reverse-engineering.
30  *
31  * @author Andrus Adamchik
32  */
33 public interface DbLoaderDelegate {
34
35     /**
36      * Returns true to tell DbLoader that it is OK to overwrite DbEntity that already
37      * exists in the model. If loading process should be stopped immediately, an exception
38      * is thrown.
39      */
40     public boolean overwriteDbEntity(DbEntity ent) throws CayenneException;
41
42     public void dbEntityAdded(DbEntity ent);
43
44     public void dbEntityRemoved(DbEntity ent);
45
46     public void objEntityAdded(ObjEntity ent);
47
48     public void objEntityRemoved(ObjEntity ent);
49 }
50
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