def odba_cut_connection(remove_object)
			odba_potentials.each { |name|
				var = instance_variable_get(name)
				if(var.eql?(remove_object))
					instance_variable_set(name, nil)
				end
			}
		end
def odba_cut_connection(remove_object)
			odba_potentials.each { |name|
				var = instance_variable_get(name)
				if(var.eql?(remove_object))
					instance_variable_set(name, nil)
				end
			}
		end
Removes all connections to another persistable. This method is called
 by the Cache server when _remove_object_ is deleted from the database