Vlad,
You're right - LIA 1st edition was written for Lucene 1.4.x. All of
the code works fine with Lucene 1.9 (with deprecation warnings that
can be safely ignored), but documented tweaks are necessary to get
the LIA code to compile with Lucene 2.0.
The coverage of the basics and architecture is still current and
relevant, as well as algorithms, techniques, functionality, and for
the most part the API as well. There are some new features in
1.9/2.0 that, of course, are not covered (if only I had that time
machine handy). Otis and I are in the planning stages of the 2nd
edition, the calm before the storm. The 2nd edition should see the
light of day by the end of the year, or perhaps in early '07 - that
is the best clarity I get from the crystal ball today.
Overall I think those new to Lucene will benefit from Lucene in
Action 1st edition, and add to that reading Lucene 2.0 CHANGES.txt to
catch up on API tweaks and new features.
Erik
On Jul 10, 2006, at 10:29 AM, Vladimir Olenin wrote:
Hi,
Can anyone, pls, advise, based on which version of Lucene the
'Lucene in
Action' book is written? I've looked at various releases
(http://gulus.usherbrooke.ca/pub/appl/apache/lucene/java/archive/),
and
it seems like there was a big gap between 1.4 and 1.9 release (over a
year), with 1.4 release around end of 2004. I assume the book is based
on 1.4 then, but there must have been a great deal of rework done
since
then, especially that no new versions have been released for such a
long
time (again, assuming, the changes were quite big and not
incremental...). So, how outdated the book is from these prospectives:
- basics and overall architecture
- main algorithms descriptions (from which performance for
different use
cases can be approximated)
- functionality
- API
Thanks a lot!
Vlad
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