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From: "Chris Mantle" <mentalmantle@hotmail.com>
To: <java-user@lucene.apache.org>
Subject: Can't perform exact match...?
Date: Mon, 11 Apr 2011 09:47:39 +0100
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Hi, I=E2=80=99m having some trouble with Lucene at the moment. I have a =
number of unique identifiers that I need to search through. =
They=E2=80=99re in many different forms, eg. =E2=80=9CM=E2=80=9D, =
=E2=80=9CMO=E2=80=9D, =E2=80=9C:MOFB=E2=80=9D, =
=E2=80=9CFH..L-O=E2=80=9D, etc. All I need to do is an exact prefix =
search: at the moment, if I type in =E2=80=98M=E2=80=99, I get =
=E2=80=9CM=E2=80=9D, =E2=80=9CMO=E2=80=9D and =E2=80=9C:MOFB=E2=80=9D, =
and I=E2=80=99d like to avoid getting =E2=80=9C:MOFB=E2=80=9D until the =
user actually types in =E2=80=98:M=E2=80=99.

This is with a StandardAnalyzer and a PrefixQuery. I=E2=80=99ve tried =
many different combinations of analyzer and query. If I use a =
WhitespaceAnalyzer or a KeywordAnalyzer, I see that tokens are generated =
in a form that I=E2=80=99d expect (=E2=80=9C:MOFB=E2=80=9D instead of =
=E2=80=9Cmofb=E2=80=9D, for instance), but I can=E2=80=99t search with a =
wildcard: searching with =E2=80=98M*=E2=80=99 returns nothing; =
=E2=80=98M=E2=80=99 returns =E2=80=9CM=E2=80=9D alone. I=E2=80=99ve also =
tried using ANALYSED and NOT_ANALYSED indexing to no avail.

Can anyone advise me on how to remedy this? There must be something =
I=E2=80=99m missing here...

Thanks,
- Chris M.
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