To realize a directed association from one CORBA interface to another CORBA interface, you must implement the accessor operations in the subclass that implements the source CORBA interface. Use one of the following methods:
In the latter case, if the relation has a multiplicity of one, the return and argument type of the accessor is IB_ptr. If the multiplicity is many, the return type of the accessor is IB_seq, and the realizing operation returns an instance of the IB_seq class that is generated by the IDL compiler and populated with the associated objects.