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From Chuck Williams <ch...@manawiz.com>
Subject Re: [jira] Commented: (LUCENE-565) Supporting deleteDocuments in IndexWriter (Code and Performance Results Provided)
Date Mon, 10 Jul 2006 17:33:26 GMT


Yonik Seeley wrote on 07/10/2006 09:27 AM:
> I'll rephrase my original question:
>  When implementing NewIndexModifier, what type of efficiencies do we
> get by using the new protected methods of IndexWriter vs using the
> public APIs of IndexReader and IndexWriter?

I won't comment on Ning's implementation, but will comment wrt this
issue for related work I've done with bulk update.  I needed at least
package-level access to several of the private capabilities in the index
package (e.g., from SergmentMerger:  resetSkip(), bufferSkip(),
writeSkip(); from IndexWriter:  readDeletableFiles(),
writeDeletableFiles(); etc.).

I think the index package and its api's have not been designed from the
standpoint of update (batched delete/add or bulk), and are not nearly as
friendly to application-level specialization/customization as other
parts of Lucene.

As part of the new index representation being considered now, I hope
that these issues are addressed, and would be happy to participate in
addressing them (especially if gcj releases 1.5 and 1.5 code becomes
acceptable).

Chuck


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