public void perform(final ResourceVisitor visitor, final ResourceFilter filter)
   {
      perform(root, visitor, acceptAll, filter);
   }
public void perform ( final ResourceVisitor visitor , final ResourceFilter filter ) { perform ( root , visitor , acceptAll , filter ) ; }
Perform the visit using the given {@link ResourceVisitor}. All {@link Resource} instances will be recursed, but
only resources matching the given {@link ResourceFilter} will be visited.