public static Sequence promoteSequence(Sequence x) {
if (BaseSequence.class.isAssignableFrom(x.getClass())) {
try {
return new Sequence(x.getFullName(), x.getSequence());
} catch (SequenceException e) {
return x;
}
} else
// if it's not a BaseSequence, there isn't anything
// to 'promote' to! (yet)
return x;
}
