Explained by Jobinesh in his one more of his excellent posts (Checking for dirty data).
Quoting him:
SomeDC::isTransactionDirty() works well with those DataControls which have implemented oracle.adf.model.TransactionalDataControl. Apparently it works with ADF BC. However this may not work (as of now) with Bean DC as it lacks the specific transactional context implementation. DCDataControl::isTransactionModified() does not consult underlying model for checking the modified status, rather it keeps track of 'TxnModified' flag and marks it as dirty whenever UI pushes updated data to the binding layer.
Dig more:
Quoting him:
SomeDC::isTransactionDirty() works well with those DataControls which have implemented oracle.adf.model.TransactionalDataControl. Apparently it works with ADF BC. However this may not work (as of now) with Bean DC as it lacks the specific transactional context implementation. DCDataControl::isTransactionModified() does not consult underlying model for checking the modified status, rather it keeps track of 'TxnModified' flag and marks it as dirty whenever UI pushes updated data to the binding layer.
Dig more:
- http://download.oracle.com/docs/cd/E21764_01/apirefs.1111/e10653/oracle/adf/model/binding/DCDataControl.html#isTransactionModified__
- http://download.oracle.com/docs/cd/E21764_01/apirefs.1111/e10653/oracle/adf/model/binding/DCDataControl.html#isTransactionDirty__
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