* For bt_component_class, bt_component_class_filter, bt_port_input,
* bt_port_output, bt_query_executor, bt_self_component_class_filter,
* bt_self_component_filter, bt_self_component_port_input,
* For bt_component_class, bt_component_class_filter, bt_port_input,
* bt_port_output, bt_query_executor, bt_self_component_class_filter,
* bt_self_component_filter, bt_self_component_port_input,