/** Assigns the lead unit of the proposal to the given principal investigator */
public void assignLeadUnit(ProposalPerson person, String unitNumber) {
if (person.containsUnit(unitNumber)) {
person.getUnit(unitNumber).setLeadUnit(true);
return;
}
ProposalPersonUnit unit = createProposalPersonUnit(unitNumber, person);
unit.setLeadUnit(true);
addUnitToPerson(person, unit);
}
@Override
public void addUnitToPerson(ProposalPerson person, ProposalPersonUnit unit) {
if (unit == null) {
throw new IllegalArgumentException("Cannot add null units to a ProposalPerson instance");
}
if (!person.containsUnit(unit.getUnitNumber())) {
unit.setProposalPerson(person);
person.addUnit(unit);
unit.refreshReferenceObject("unit");
}
}