I appreciate the vote of confidence on this, but I am not afraid to
admit that I do not consider myself an expert on the deep innards of
Lucene. I understand the concepts, and a bit of the internals, but I
certainly do not live up to the hype you just bestowed upon me. *blush*
Regarding JDK 1.2 - I came to Java at 1.3, and have never used a JDK
earlier than that. All the apps I build now are currently on JDK 1.5
(err... 5.0). I do not currently know what would be involved in
running Lucene on a 1.2 VM. The first question to ask is whether an
earlier version of Lucene is sufficient for the needs of those
constrained to JDK 1.2. If not, then we move forward to defining
what needs to be changed - a simple compilation of the trunk source
code with a 1.2 VM would give away most of the details.
As with open source in general, it is about scratching our own
itches. If you're using Lucene (or need to use Lucene) in a 1.2 VM,
that is your itch to scratch and I would happily support your efforts
in some way in documenting this (either on the wiki or embedded in
Lucene's own built-in documentation) or in providing an alternative
version of Lucene that is suitable for 1.2 (perhaps by having
alternative code in a separate directory within our code
repository). If you create such documentation, perhaps you'd be
willing to donate it with full attribution to the 2nd edition of
LIA. But please don't wait for me to do it, as it really is not
something I need personally for any project - all my projects are at
JDK 1.5 currently.
Erik
On Aug 26, 2005, at 9:55 AM, Karl Koch wrote:
Hello Otis,
I do agree with Otis that somebody, preferably Erik, would provide
a more
detailed list of reasons why 1.3 does not run on Java 1.2. This
list could
then be used by others to adapt the code of version 1.3+ in order
to make it
run for their individual purposes (if this is necessary).
The information provided in the CHANGES file is a good start but I
am sure
some more information on the technical side would help (e.g.
classes and
methods effected, changed in data structures, etc.).
I think Erik would perhaps be in the best position to do that since
he knows
all the insides of this excellent piece of Open Source - almost
everybody of
us whould spend months to find out what he already knows.
Kind Regards,
Karl
--- Ursprüngliche Nachricht ---
Von: Otis Gospodnetic <[EMAIL PROTECTED]>
An: Erik Hatcher <[EMAIL PROTECTED]>, Karl Koch
<[EMAIL PROTECTED]>
Betreff: Re: Books about Lucene?
Datum: Thu, 18 Aug 2005 12:49:16 -0700 (PDT)
I was going to suggest the same! I'd love it if we could cover
Lucene
on a PDA in the next edition of Lucene in Action.
Btw., you should write to lucene-user and say why you can't go with
1.4.3 or 1.9 versions. What changed since Lucene 1.2 that
prevents you
from using the latest version? I think you should share that on
lucene-user list.
Otis
--- Erik Hatcher <[EMAIL PROTECTED]> wrote:
Karl,
Thanks for your feedback!
Maybe you'd be up for contributing a section on Lucene on mobile
devices for LIA 2.0? :) I have no experience with it myself, and
wish I could help with your Lucene 1.2 woes, but I came into Lucene
myself with 1.3 and up.
Erik
On Aug 18, 2005, at 1:42 PM, Karl Koch wrote:
Hello Erik,
I find "Lucene in Action" an extemely well written and easy
accessable book
and I must say: Well done (including of course everybody who
participated to
the book).
Naturally the book is very strong on the latest version on Lucene.
I
currently, and you may have realised that on all my other postings,
have the
problem that I cannot go for the latest version due to hardware
limitations
in mobile computing. I think I am not alone. I think it would be
great to
have articles on how to run Lucene on small footprint devices such
as Java
enabled PDAs or even MIDP on mobile phones. I am not really
convinced that
this shouild go in a book such a LIA but I am sure there is a
demand to know
about how to do such things.
There are certainly people out there that want to try out more IR
intensic
stuff with Lucene. This is, for a good reason, not addressed in the
book. I
think it would be good to have perhaps some in-deep information on
Lucene
available that goes into this direction. I am not sure if I am
talking about
another book here or if this could be some sort of appendix
chapters in the
next LIA. Since you are an IR expert, it could actually be a great
idea to
write an IR book for Students in Information Science and
Information
Retrieval with Lucene as the tool used for examples (like you find
statistical books with SPSS examples).
Karl
--- Ursprüngliche Nachricht ---
Von: Erik Hatcher <[EMAIL PROTECTED]>
An: java-user@lucene.apache.org
Betreff: Re: Books about Lucene?
Datum: Wed, 17 Aug 2005 20:28:09 -0400
On Aug 17, 2005, at 2:49 PM, Karl Koch wrote:
Are there any other books (despite "Lucene in Action") perhaps
written in a
different perspective (e.g. different applications or problem
areas)?
To echo what Otis said - I don't know of any myself.
I'd be very interested to hear yours, and others, thoughts on what
Lucene in Action 2nd edition should add/remove to its coverage.
There are lots of topics that I've researched and worked on since
that book that I think make sense to add, but community feedback
will
decide ultimately how LIA 2.0 unfolds.
Erik
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