Hello, in working with Lucene since several years.
One of my biggest problem was the unability of lucene to search with
wildcard. Also I have develop my own MultiTermQueries.
Now there's a standard class for this, but you'll allways become an
exception if your search is to generic, 'a*' for exemple.
I can't solve this problem, but I making it acceptable with the follwing
allgorithm:
- getting all possible terms.
- sort them (actualy with the length difference beetween search term (if
you search 'TooMany*' then 'TooManyDog' has a better range than
'TooManyClauses')).
- get the allowed (I want my BooleanQuery not to overwrite 100 terms for
example).
- search this.
for this Query I can call call:
.getWarnnigs() give me a string with a description of the limitation
("Have found 265654 terms for you search please be more precise.")
.getTermsList() the list of all searched terms (usefull too for the user).
So I can allways have a result. Mostly, with the sorting I am getting
the searched term (You can use another sort). I can limit maxClauseCount
to few values (avoid out of memory and better performance).
Hope this can help someone. I think it would be a nice feature to
implements in lucene.
PS: sorry for my poor english.
--
Mit freundlichen Grüßen
i. A. Éric Louvard
HAUK & SASKO Ingenieurgesellschaft mbH
Zettachring 2
D-70567 Stuttgart
Phone: +49 7 11 7 25 89 - 19
Fax: +49 7 11 7 25 89 - 50
E-Mail: [EMAIL PROTECTED]
www: www.hauk-sasko.de
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