Getting the most recently added document

[Jerry Camel <rl...@msn.com>]

Is it possible to get the document number of the most recently added document for an index?  If There is any type of exception while processing a document, I need to make sure it's removed from the index if it's already been added.  I still have a reference to the document object.  Is that object updated with a document number after the add?  Is the document number a proper way to identify the document?

What's the best way to track this so that, if necessary, I can remove a recent document from the index?

Thanks.

J