| An interface which provides functionality for a disconnected {@code RowSet}
to put data updates back to the data source from which the {@code RowSet} was
originally populated. An object implementing this interface is called a
writer.
The writer must establish a connection to the {@code RowSet}'s database
before writing the data. The {@code RowSet} calling this interface must
implement the {@code RowSetInternal} interface.
The writer may encounter a situation where the updated data needs to be
written back to the database, but has already been updated there in the mean
time. How a conflict of this kind is handled is determined by the
implementation of this writer.
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