So commit() will be available from 2.4 onwards??
Michael McCandless-2 wrote:
>
>
> Ajay Garg wrote:
>
>> Thanks Mike. That was quite explanatory. A couple of doubts:
>
> You're welcome!
>
>> 1. The deletions apply to buffered as well as stored-in-RAM documents.
>> Right. So, if the index directory contains 1 document that matches a
>> deleteDocument query, and 1 document in RAM that contains the same
>> deleteDocument query, then, will the document-in-index-directory be
>> deleted
>> immediately, or when a flush is called. (It seems logical, that
>> irrespective
>> of the location of document, "actual" deletion occurs only when a
>> flush is
>> called .. just need to be doubly sure ...)
>
> Well ... the "actual" deletion (visible to an IndexReader that opens
> the index) is only guaranteed to be performed if you call commit()
> (trunk) or close() (2.3, trunk) on the IW.
>
> First, deleted docIDs, terms and queries are simply buffered in RAM.
> Then at some point (no guarantee on when) they are flushed into per-
> segment .del files in the directory, but, these del files are
> "unreferenced" (by a segments_N file) until commit() or close() is
> called.
>
>> 2. Yes I am planning to rewrite a project using Lucene 2.3.2. So, is
>> the
>> next version heading straight to 3.0 ??? (Sorry, if this question
>> seems to
>> be a little out of context of the current thread)
>
> The current plan is to have a 2.4 release next, then a 2.9 release and
> finally 3.0. It's spelled out a bit here:
>
> http://wiki.apache.org/lucene-java/Java_1.5_Migration
>
> But there are no dates attached to those bullets!
>
> Mike
>
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