IndexInfo checks for collection not being emtpy forcing an unecessary disk
access
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Key: GEOT-1473
URL: http://jira.codehaus.org/browse/GEOT-1473
Project: GeoTools
Issue Type: Bug
Components: ext shapefilerender
Affects Versions: 2.4-RC0
Reporter: Andrea Aime
Assignee: Jesse Eichar
Fix For: 2.4-RC1
IndexInfo.queryQuadTree(bboxs) grabs the query results and checks if the
collection is not empty forcing a disk access. This is unecessary since the
rest of the code is pretty much capable of handling an empty collection and the
qtree will get closed anyways as far as I can see.
This optimization is not as major as the previous ones, but gives some 20%
speedup in benchmarks that do access a very small part of the original data
(that is, those where accessing the index is more expensive than actually
accessing the data), and brings GeoServer a little more closer to MapServer
performance.
I'm going to commit it, but I don't feel super sure about this one. If you have
little time, can you just review this one?
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