add a query filter to a class ID. This should be in the form of "nClassID,nPropID,nVal1,nVal2,nVal3,etc". This will set up an IN query filter for the nValx's. There cannot be any 0s in this list.
StartTreeControl Class | com.plumtree.portaluiinfrastructure.tree Namespace | IObjectTreeModel#SetQueryFilter