> Andrus, you can test this probleme if you have a similar example (more or > less), and check what I say.
Yes, if you can provide a mapping project demonstrating an issue (no need for Java classes), I'll take a look. Feel free to use our Jira for that: https://issues.apache.org/jira/browse/CAY Andrus On Oct 23, 2012, at 2:57 PM, Felipe Martín Santos <gadita...@gmail.com> wrote: > Sorry but doesn' work :-( > > MY RELATIONSHIPS: > > <db-relationship name="toUse" source="ENCLOSURE" target="USE" > toMany="false"> > <db-attribute-pair source="CD_USE" target="CD_USE"/> > </db-relationship> > > <db-relationship name="toPieceOfGround" source="ENCLOSURE" > target="PIECE_OF_GROUND" toMany="false"> > db-attribute-pair source="ID_PIECE_OF_GROUND" target="ID_PIECE_OF_GROUND"/> > </db-relationship> > > <obj-relationship name="toPieceOfGround" source="Enclosure" > target="PieceOfGround" deleteRule="Nullify" > db-relationship-path="toPieceOfGround"/> > > <obj-relationship name="toUse" source="Enclosure" target="Use" > deleteRule="Nullify" db-relationship-path="toUse"/> > > ********************************************* > THE CODE FOR INSERT (We use Generic Persistent Class of Cayenne) > > Expression exp = ExpressionFactory.matchExp("idPieceOfGround", "123673"); > SelectQuery query = new SelectQuery("PieceOfGround", exp); > List<DataObject> pieceOfGround = context.performQuery(query); > > exp = ExpressionFactory.matchExp("cdUse", 5990403); > query = new SelectQuery("Use", exp); > List<DataObject> use = context.performQuery(query); > > DataObject enclosure = new CayenneDataObject(); > enclosure.setObjectId(new ObjectId("Enclosure")); > > // Set de DataObject for the relationships > enclosure.writeProperty("toPieceOfGround", pieceOfGround.get(0)); > enclosure.writeProperty("toUse", use.get(0)); > > context.registerNewObject(arbol); > context.commitChanges(); > > ************************************* > MY CONCLUSIONS > > cayenne context.commitChanges() builds automatically the insert: > > * ID_PIECE_OF_GROUND is pk in PIECE_OF_GROUND: when I do > enclosure.writeProperty("toPieceOfGround", pieceOfGround.get(0)), in the > commit moment, cayenne can extract automatically the ID_PIECE_OF_GROUND for > the pieceOfGround DataObject, and put this value as insert parameter. > > * CD_USE is NOT pk in USE: when I do enclosure.writeProperty("toUse", > use.get(0)), in the commit moment, cayenne CAN´T extract automatically the > CD_USE for the use DataObject, and can´t put this value as insert parameter. > > I think the problem is that, "a bug" or a cayenne design issue not taken. > > **************************************************************************** > > In the db-entity PIECE_OF_GROUND I can't put > <db-attribute name="CD_USE" type="VARCHAR" isMandatory="true" length="2"> > as PK, because its PK is ID_PIECE_GROUND (Autogenerated by cayenne with an > Oracle sequence) and if I include CD_USE as PK cayenne fails > (org.apache.cayenne.CayenneRuntimeException: [v.3.0.2 Jun 11 2011 09:26:09] > Primary Key autogeneration only works for a single attribute.). > > I've tried all the possible combinations tha you've said me, but none works > :-) > > Andrus, you can test this probleme if you have a similar example (more or > less), and check what I say. > > Thank you very much for your attention!!