// Get the sequence if it is defined
String seq = getSequenceRef( mf );
if ( seq != null ) {
int start = getSequenceStart( mf );
SequenceDef seqDef = new SequenceDef( NameDef.parseName( seq ), start, 1 );
colDef.setSequence( seqDef );
}
// Set if it is unique
colDef.setUnique( isUnique( mf ));