How to execute a stored procedure as part of a commitChanges?

[Juan Manuel Diaz Lara]

 I have a dataobjet graph with some changes, and a db stored procedure that 
should run after this changes are in the db, but must run in the same 
transaction because it make some more changes to other data, this changes can 
fail so I want the commitChanges fail if the stored procedure fails. 
 Atte. Juan Manuel Díaz Lara