Improve JDBCDataStore metadata caching
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Key: GEOT-2013
URL: http://jira.codehaus.org/browse/GEOT-2013
Project: GeoTools
Issue Type: Improvement
Affects Versions: 2.5.0, 2.6-M0
Reporter: Andrea Aime
Assignee: Justin Deoliveira
Fix For: 2.5.0, 2.6-M0
Curerntly JDBCDataStore does cache the feature types in a permanent cache, and
does not cache at all the list of type names.
The latter results in a query to determine type names each time a renamed type
is used (e.g., GetMap) in GeoServer (in the Oracle case that's very common due
to the uppercase naming Oracle is forcing on us).
The datastore should cache the list of names too. Neither this case nor the
feature types one should be permament thoguht, information in the datastore can
change. We either need to allow the user to drop these caches explicitly or set
a timeout. The former seems a good compromise (JDBCDataStore.resetMetaData()?).
Fixing this one brings the new datastsore very close to the old one
(performance wise)
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