CollectionFactory.forObjectContainer(objectContainer).newBigSet();

• For "smaller or equal":

  Constraint.Smaller().Equal()

• For "not like":

  Constraint.Not().Like()

• For "not greater or equal":

  Constraint.Not().Greater().Equal()

EventRegistry registry =  EventRegistryFactory.ForObjectContainer(container);

private static void OnCreated(object sender, ObjectInfoEventArgs args)
{
   Object obj = args.Object;
   if (obj is Pilot)
   {
      Console.WriteLine(obj.ToString());
   }
}
registry.Created+=OnCreated;