public void Execute()
{
Employee e = PayrollDatabase.GetUnionMember(memberId);
if (e != null)
{
UnionAffiliation ua = null;
if (e.Affiliation is UnionAffiliation)
{
ua = e.Affiliation as UnionAffiliation;
}
if (ua != null)
{
ua.AddServiceCharge(memberId, new ServiceCharge(time, charge));
}
else
{
throw new InvalidOperationException("Tries to add service charge to union member without a union affiliation");
}
}
else
{
throw new InvalidOperationException("No such union member.");
}
}
protected override void RecordMembership(Employee e)
{
Affiliation affiliation = e.Affiliation;
if (affiliation is UnionAffiliation)
{
UnionAffiliation unionAffiliation = affiliation as UnionAffiliation;
int memberId = unionAffiliation.MemberId;
PayrollDatabase.RemoveUnionMember(memberId);
}
e.Affiliation = Affiliation;
}