An interface which provides functionality for a disconnected RowSet to put
data updates back to the data source from which the RowSet was originally
populated. An object implementing this interface is called a Writer.
The Writer must establish a connection to the RowSet's data source before
writing the data. The RowSet calling this interface must implement the
RowSetInternal interface.
The Writer may encounter a situation where the updated data being written
back to the data source has already been updated in the data source. How a
conflict of this kind is handled is determined by the implementation of the
Writer.
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