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From "Emmanuel Lecharny (JIRA)" <j...@apache.org>
Subject [jira] Created: (DIRSERVER-1414) Normalization is not handling correctly (buit this has no impact)
Date Sat, 03 Oct 2009 20:36:23 GMT
Normalization is not handling correctly (buit this has no impact)
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                 Key: DIRSERVER-1414
                 URL: https://issues.apache.org/jira/browse/DIRSERVER-1414
             Project: Directory ApacheDS
          Issue Type: Bug
    Affects Versions: 1.5.5
            Reporter: Emmanuel Lecharny
            Priority: Minor
             Fix For: 2.5.0


Normalizers are attached to MatchingRules. An AttributeType might have up to three MR (EQUALITY,
ORDERING and SUBSTR). Normalization is always done using the EQUALITY MR, regardless the MR
used.

This has an impact on the DN normalization, and AT normalization that is done very early in
the requests processing. We also stores a normalized form of each DN withing the LdapDN data
structure, to avoid a costly operation to take place when searching for a value.

This is a good thing as far as the potential MR a AT can use are all using the same Normalizer,
but the first time we will have a MR using a different normalizer, the search will fail.

Right now, I suggest we keep doing what we are doing, ie, using the EQUALITY MR as a default.
It's very unlikely that it will have an impact on the server.

As a side note, one can wonder when do we have a different normalizer used for an AT, and
there is a clear use case : when using a approx filter, for instance, or a substr filter,
normalization can be different(we may use a phonetic normalization for the approx filter,
and the normalization can be different if we are using a SUBSTR MR too). So far, we are ok
as we don't support the approx filter...

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