Nick Burch wrote:
On Tue, 5 May 2009, Chris Lott wrote:
Hi, I'm writing to report a small documentation problem in the class
org.apache.poi.hssf.eventusermodel.AbortableHSSFListener
I've fixed the docs, and added a unit test that shows it all works just
fine
Nick
Thanks for checking that this works. I think I found the problem. I am
still working with the XLS2CSV example from here
http://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/hssf/eventusermodel/examples/XLS2CSVmra.java
I am extending it to read just the first row of an Excel sheet. In this
example, the user implementation of HSSFListener is wrapped inside a
MissingRecordAwareHSSFListener, which in turn is wrapped inside a
FormatTrackingHSSFListener. The dummy end-of-row record provided by
the MissingRecordAwareHSSFListener is really helpful, and the formatting
assistance provided by the FormatTrackingHSSFListener is *also* really
helpful. But those two listeners don't seem to be aware of the
abortable notion. I revised the implementation so it extends
AbortableHSSFListener (instead of implementing HSSFListener), but the
two wrapper listeners don't call abortableProcessRecord. Instead they
call just plain old processRecord. At first glance there seems no way
for me to reuse all this great stuff and still get the message back up
to the loop. I am trying to figure out a way around this issue. Thanks
for listening.
chris...
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