ExtractBoundsFilterVisitor does not handle intersect queries correctly
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Key: GEOT-2609
URL: http://jira.codehaus.org/browse/GEOT-2609
Project: GeoTools
Issue Type: Bug
Components: data shapefile
Affects Versions: 2.6-M1
Reporter: Jesse Eichar
Assignee: Andrea Aime
I have the following filter:
[[ POLYGON (( ... )) intersects the_geom ] OR [ POLYGON (( ... )) intersects
the_geom ]]
The "the_geom" part is a PropertyName expression. In
ExtractBoundsFilterVisitor it returns null for this type of expression.
Problem is that when OR and AND try to combine the geometries a
NullPointerException is thrown because of the null.
I am thinking that we should simply return the envelope that is contained in
data parameter should be returned. Reason is that in this case the bbox that
we care about is the polygon. But if you look at the code for intersects (and
others) it is:
data = filter.getExpression1().accept(this, data);
data = filter.getExpression2().accept(this, data);
So we get the bbox we care about for the first assignment to data, then we get
null for the second. If I construct my in the other order (geometry first) the
expected behaviour occurs.
Hope that makes sense :)
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