Hello,
I am new to GeoTools and I have a question. I am working on a project where I
will need to take in xml documents that have OGC Filter statements and I will
have to produce corresponding SQL where statements. I took a quick look at
version 2.5.1 of GeoTools and saw the class FilterToSQL. However the comments
for this class note that Geometry Filters cannot be encoded. What exactly does
this mean? I am looking at instances where I will need to make SQL statements
from filters that may ask for events that are relevant to locations such as
show me everything that happened in this bounding box. Would a query like this
still work, or is bounding box a type of geometry that will not work?
I ask because when I used a program called GeoServer, which uses GeoTools, I
was able to make WFS queries that used bounding boxes to find specific data. I
had assumed that GeoTools was doing all of the filter to SQL conversions, does
anyone know if this so or not?
I also noted in the comments for this class that the reason for the lack of
support was due to OGC's specifying two ways of doing SQL databases. The
comments then note that it is possible to add functionality by subclassing off
of the encoder you need, putting in the proper GeometryFilter visit method, and
adding filter types. Does anyone know if doing this would allow me to fully
support all possible OGC Filter statements that I could receive? Also does
anyone know how much work this would entail? I am just trying to find out if
GeoTools is still my best option or if I should be looking for another
solution, any help would be greatly appreciated.
Brett
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