Re: [udig-devel] filtering contents of rendered layers

[Jesse Eichar <jeichar@xxxxxxxxxxxxxxx>]

Another thought.  It could be because Filter is put on the blackboard  
and I'm creating a Query from it.  I thought I was creating a query  
that would return all attritbutes but it is possible that your  
FeatureSource or the query I am building is behaving badly.  In other  
words you can try to put a query on the Blackboard instead of a  
filter and see if that works better.

Also make sure that the Query typename is correct.

Jesse


On Oct 30, 2007, at 2:42 PM, Vince Darley wrote:

> At 21:27 30/10/2007, Jesse Eichar wrote:
> > Take a look at the layer with the table view and see if it shows any
> > features.
> > Also run the Feature Count operation and see if it detects any.
>
> Ah good point.  I'm actually copying the 'Map' so that the BIRT  
> reporting can control things without messing with the actual  
> application, so the table shows everything as does the count (and,  
> indeed, so does the map):
>
> Map map = (Map) EcoreUtil.copy((EObject) toDraw);
>
> If I turn off that duplication, then indeed the Table is empty, the  
> Map is empty, etc.
>
> So, it seems my filter is being applied just fine, but not doing  
> what I want it to.  Can you point me to the code where the filter  
> is actually applied, so I can check that it correctly finds the  
> right column/attribute to compare against etc?
>
> Vince.
>
> > Jesse
> >
> > On Oct 30, 2007, at 2:23 PM, Vince Darley wrote:
> >
> > > I've implemented the DataStore resolver, so that returns well and
> > > we seem to be getting closer.  Now my layer contains nothing at all
> > > -- everything is filtered out.  If I remove the filter, then
> > > everything is drawn.  So, it seems my filter is wrong:
> > >
> > > I've created it as
> > >
> > > [ "Day" == "1" ]
> > >
> > > for example, which is then parsed ok, and the 'toString()' method
> > > on the filter returns:
> > >
> > > [ Day = 1]
> > >
> > > So.... any ideas why this filter doesn't match anything in my data
> > > (which definitely has an attribute called 'Day' and values with
> > > '1') ??
> > >
> > > regards,
> > >
> > > Vince.
> > >
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