Hi Gabriel - I am reading through the logs ... Sounds to me like making your own PropertyAccessor is the thing to do - you want to teach the existing Filter implementation how to access new content (in this case ISO Feature).
It appears that the difficulty comes is the handling of literals ... you would like to compare an Attribute to an Attribute (rather then an Attribute to a value). We have a similar situations for each one of the Filter implementations: - Property - needs a PropertyAccessor implementation matched to the provided content - Add, Multiply, Add, Subtract - check the class and convert to the appropriate subclass of Number for the provided work - Geometry - will need something similar to PropertyAccess before it can work on both JTS and ISO Geometry implementations For the comparison operations, including equals, can we make use of an an Attribute as our "context" and pull a literal value like "1" into a Attribute for you? Cheers (sure hope I am understanding the problem correctly). Jody ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
