| First implementation of QueryTracker to handle BBox queries.
Stores the extent of queries in a R-tree,
so this tracker can tell what areas are already covered by previous queries.
Can compute a rough approximation of the complementary area needed to cover a new query.
Uses spatial index from org.geotools.index.rtree, and keeps tree in memory.
Currently, does handle only queries made of a BBoxFilter.
author: Christophe Rousson, SoC 2007, CRG-ULAVAL |