Aggregate Functions cannot be used with Expression
--------------------------------------------------
Key: GEOT-1626
URL: http://jira.codehaus.org/browse/GEOT-1626
Project: GeoTools
Issue Type: Bug
Components: core filter
Affects Versions: 2.5-M0, 2.4-RC0
Reporter: Jody Garnett
Thanks to Gabrella for catching this (when updating to 2.4.M0); I have
confirmed the problem exists on 2.5.x as well.
A few aggregate functions such as Collection_MaxFunction; have reduced their
functionality down to a utility method:
{code}
calculateMax(FeatureCollection collection, Expression expression)
{code}
These methods have not been updated to use opengis Filter and require a cast to
be successful.
As a workaround users can use the function as part of a normal function
expression, rather than making use of these out of date methods:
{code}
FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2(null);
Function sum = ff.function("Collection_Sum", ff.property("age"));
Object value = sum.evaluate( featureCollection );
{code}
I don't think anyone is interested in maintaining a public API at this level;
chances are those methods
were just hanging out for test cases to call; will try and change them to
package visibility.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://jira.codehaus.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
-------------------------------------------------------------------------
SF.Net email is sponsored by:
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services
for just about anything Open Source.
http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace
_______________________________________________
Geotools-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/geotools-devel
