Perhaps the answer would be to add some interfaces, such as
(interface names are just for argument purposes):
IndexWriter -- contains signatures of write methods
DocumentDeleter - contains signatures of deletion methods
IndexReader -signatures of read methods
If this were how users interacted w/ Lucene, then the implementation
could be in the same implementation that unified the working with the
index.
I think we may want to seriously consider, for 3.0, a revision of the
front facing methods such as writing and reading.
On Jan 17, 2007, at 7:46 AM, Nadav Har'El wrote:
On Wed, Jan 17, 2007, Michael McCandless wrote about "Re: adding
"explicit commits" to Lucene?":
Perhaps instead of a single "grand unified Index" class in the
future,
we aim to move all index write methods into IndexWriter? This
is then simple for users to use: if you want to change anything about
the index, use an IndexWriter; if you want to do searches, use an
IndexReader. If we aim for this as our eventual goal, LUCENE-565 in
fact gets us quite a bit closer.
It's important to remember, that whatever class knows how to do
deletions,
this class will need to replicate much of the IndexReader
functionality.
Why? Because just like an IndexReader, the deleting class needs to
know how
to find documents matching a term, and like an IndexReader (and
unlike an
InderWriter) it may need to open all segments, not just the one
segment that
is being written.
So perhaps a "grand unified Index" does make sense, instead of
repeating the
same code and/or functionality in both IndexReader and IndexWriter.
--
Nadav Har'El | Wednesday, Jan 17 2007, 27
Tevet 5767
[EMAIL PROTECTED]
|-----------------------------------------
Phone +972-523-790466, ICQ 13349191 |I had a lovely evening.
Unfortunately,
http://nadav.harel.org.il |this wasn't it. - Groucho Marx
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