[udig-devel] why is the presence of some commands perspective dependent?

[Jody Garnett]

Andrea Antonello wrote:
> Udig doesn't seem to be able to find the bounds of the Scratch layer
> for the in memory datastore. 
>
> The really strange thing is that when it comes down to
> MemoryGeoResourceImpl, inside the method:
>         public ReferencedEnvelope getBounds() {
>             Envelope bounds;
>             try {
>                 bounds = source.getBounds();
>                 if( bounds instanceof ReferencedEnvelope)
>                     return (ReferencedEnvelope) bounds;
>                 return new ReferencedEnvelope(bounds, getCRS());
>             } catch (IOException e) {
>                 return new ReferencedEnvelope(new Envelope(),
> DefaultGeographicCRS.WGS84); }
>         }
>
> it fails inside:
>
>  bounds = source.getBounds();
>
> where in the source object I read:
>      * <p>
>      * Currently returns null, consider getFeatures().getBounds()
> instead.
>      * </p>
>
> but exactly that makes the creation of the ReferenceEnvelope fail,
> since it uses null:
>   
We best return a real bounding box then; I have a hard time explaining 
to data store developers that returning bounds is important ;-)

Jody