Filter CompareFilter not null safe
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Key: GEOT-901
URL: http://jira.codehaus.org/browse/GEOT-901
Project: GeoTools
Issue Type: Bug
Components: core filter
Affects Versions: 2.2-RC3
Reporter: Jody Garnett
Assigned To: Jody Garnett
Fix For: 2.2
When using Filter with a feature that contains a null value the compare filter
will fail, rather then evaulating to false..
So should we:
a) force the user to use a NullFilter combined with OR for safty?
b) allow CompareXXXFilter to return false? Aka be exclusive if part of a filter
"fails"
c) allow CompareXXXFilter to return true? Aka be inclusive if part of a filter
"fails"
For somethings like equals I am happy evaluating to false...
For compare I am also happy evaulating to false, the filter cannot confirm that
"null is greater then 3" after all
For things like Math I would like to make use of the Double.NaN ...
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