Save data into multiple collections in Data Control

Question

Hi,
In another post (https://forums.oracle.com/message/11094155) I asked how to merge data from multiple collections and show it into a table. FrankNimphius gave me the correct answer. I have now my table with data merged from some collections from my data control. But now I have the opposite request: the table must allow insert new rows and store the data in the model that is represented by all those collections.
I saw this blog https://blogs.oracle.com/jdevotnharvest/entry/how_to_add_new_adf, and is great, but works with one collectionModel, but the idea is exactly the same, just with multiple collectionModels inside a parent one.
The table is not bounded to one collectionModel, it is bounded to a List<MyObject> in my managed bean, so the built-in Create/Delete data control operations of the parent collection don't work.
Another thing is: for me the model is a black box, I don't know anything about the model, I just know the datacontrol.
Thanks!
AAPDL

Answer 1

Hi Frank,
I tried calling the create built-in operation for each collection.
I insert the row in the parent RowSetIterator and set it as the currentRow, then call the create operation. Later insert rows in each children and call the create operation of each one. Finally I call the commit operation.
I tried and it worked, but you said that there would be a tricky part. I don't know if in the code bellow I did that, please let me know.
In the bellow code the PersonasBinding2 is bind to the iterator of the parent collection, and the PersonaNaturalBinding2 and IdentificacionBinding2 are bind to the children collections.
            DCBindingContainer bindingContainer = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
            JUCtrlHierBinding personasBinding = (JUCtrlHierBinding)bindingContainer.findCtrlBinding("PersonasBinding2");
            RowSetIterator personasRowSet = personasBinding.getIteratorBinding().getRowSetIterator();
            Row nuevaFilaPersona = personasRowSet.createRow();
            nuevaFilaPersona.setAttribute("Id",15);
            nuevaFilaPersona.setAttribute("TipoPersona",0);
            OperationBinding createPersonaOperation = bindingContainer.getOperationBinding("CreatePersona");
            createPersonaOperation.execute();
            personasRowSet.setCurrentRow(nuevaFilaPersona);
            JUCtrlHierBinding personaNaturalBinding = (JUCtrlHierBinding)bindingContainer.findCtrlBinding("PersonaNaturalBinding2");
            RowSetIterator personaNaturalRowSet = personaNaturalBinding.getIteratorBinding().getRowSetIterator();
            Row nuevaFilaPersonaNatural = personaNaturalRowSet.createRow();
            nuevaFilaPersonaNatural.setAttribute("IdPersona",15);
            nuevaFilaPersonaNatural.setAttribute("PrimerApellido","PA");
            nuevaFilaPersonaNatural.setAttribute("PrimerNombre","PN");
            nuevaFilaPersonaNatural.setAttribute("SegundoApellido","SA");
            nuevaFilaPersonaNatural.setAttribute("SegundoNombre","SN");
            OperationBinding createPersonaNaturalOperation = bindingContainer.getOperationBinding("CreatePersonaNatural");
            createPersonaNaturalOperation.execute();
            JUCtrlHierBinding identificacionBinding = (JUCtrlHierBinding)bindingContainer.findCtrlBinding("IdentificacionBinding2");
            RowSetIterator identificacionRowSet = identificacionBinding.getIteratorBinding().getRowSetIterator();
            Row nuevaFilaIdentificacion = identificacionRowSet.createRow();
            nuevaFilaIdentificacion.setAttribute("IdPersona",15);
            nuevaFilaIdentificacion.setAttribute("NumeroIdentificacion","NI");
            nuevaFilaIdentificacion.setAttribute("TipoIdentificacion","TI");
            OperationBinding createIdentificacionOperation = bindingContainer.getOperationBinding("CreateIdentificacion");
            createIdentificacionOperation.execute();
            OperationBinding commitOperation = bindingContainer.getOperationBinding("Commit");
            commitOperation.execute()
By other side, in the delete operation I guess that I must delete the childrens before the parent. I know that ADF supports the delete cascade operation only if in the database is configured in that way, but as I said, I don't know how is the model.
Thanks!
AAPDL