To pull features using WFS from several layers in one request, I have two options: One, create a layer group, and then get features from the layer group, as opposed to individual layers. Two, use cross layer filtering to obtain features for each desired layer.
Now, I'm not adept at cross layer filtering. But it appears to me as the more flexible and robust solution. What I wish to achieve is obtain points within a selected administrative boundary. The administrative boundaries and the points/population layers are separate.
I'll appreciate any advice on the way to go.
My environment: GeoServer 2.1.3, OpenLayers 2.11, PostGIS 1.5.