public interface RowSetWriterAn object that implements the
RowSetWriterinterface, called a writer. A writer may be registered with a
RowSetobject that supports the reader/writer paradigm.
If a disconnected
RowSetobject modifies some of its data, and it has a writer associated with it, it may be implemented so that it calls on the writer's
writeDatamethod internally to write the updates back to the data source. In order to do this, the writer must first establish a connection with the rowset's data source.
If the data to be updated has already been changed in the data source, there is a conflict, in which case the writer will not write the changes to the data source. The algorithm the writer uses for preventing or limiting conflicts depends entirely on its implementation.
boolean writeData(RowSetInternal caller) throws SQLExceptionWrites the changes in this
RowSetWriterobject's rowset back to the data source from which it got its data.
RowSetobject (1) that has implemented the
RowSetInternalinterface, (2) with which this writer is registered, and (3) that called this method internally
trueif the modified data was written;
falseif not, which will be the case if there is a conflict
SQLException- if a database access error occurs