Hi list,
I am thinking of using CQL as a filter language in my own application and I've
been looking at "gt-cql.jar" in the GeoTools suite of tools as a library to do
the heavy lifting. However, I'm having trouble knowing where to start.
The scenario I am trying to implement is as follows:
A user creates a rule for how they want to receive notifications about new data
available and the rule can contain a filter which I send to my application as a
CQL filter. The application stores the rule and when "new data available"
event occurs the application needs to go through all user rules and determine
whether notifications need to be sent to which users. So the application needs
to go through each rule and see which ones are a match for the "new data
available" event.
Does anyone have any pointers as to where to start if I want to use GeoTools to
help with this?
The classes I've studied so far are:
org.geoserver.wfs.GetFeature
org.geoserver.wfs.JoinExtractingVisitor
org.geoserver.monitor.FilterVisitorSupport
org.geotools.filter.FilterFactoryImpl
org.opengis.filter.Filter
org.geoserver.ows.KvpParser
org.geotools.filter.text.cql2.CQLTest
org.geotools.filter.text.cql2.CQL
--Steve
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