- public DirectedBinaryDomainCombination( final DomainId n_terminal, final DomainId c_terminal ) {
- super();
- if ( ( n_terminal == null ) || ( c_terminal == null ) ) {
- throw new IllegalArgumentException( "attempt to create binary domain combination using null" );
- }
- _data = n_terminal.getId() + BinaryDomainCombination.SEPARATOR + c_terminal.getId();
- }
-