An object that implements the
called a writer. A writer may be registered with a
object that supports the reader/writer paradigm.
If a disconnected
RowSet object 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
writeData method 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.
Public Method Summary
public abstract boolean writeData (RowSetInternal caller)
Writes the changes in this
rowset back to the data source from which it got its data.
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|