@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (this.hashCode() != obj.hashCode()) return false;
if (obj instanceof PrizeNode) {
PrizeNode other = (PrizeNode) obj;
if (this.getTardiness() != other.getTardiness()) return false;
else if (this.getRecords().equals(other.getRecords())) return true;
}
return false;
}
public Collection<PrizeNode> getSuccessors() {
Collection<PrizeNode> result = new ArrayList<>();
if (this.getTardiness() == 0) {
PrizeNode c = new PrizeNode();
@SuppressWarnings("unchecked")
LinkedList<Attendance> a = (LinkedList<Attendance>) this.records_.clone();
if (a.size() >= 2) {
a.poll();
}
a.offer(Attendance.Late);
c.setRecords(a);
c.setTardiness(1);
result.add(c);
}
{
PrizeNode c = new PrizeNode();
@SuppressWarnings("unchecked")
LinkedList<Attendance> a = (LinkedList<Attendance>) this.records_.clone();
if (a.size() >= 2) {
a.poll();
}
a.offer(Attendance.OnTime);
c.setRecords(a);
c.setTardiness(this.tardiness_);
result.add(c);
}
boolean isAbsentOk = (this.records_.size() < 2);
isAbsentOk = isAbsentOk || (this.records_.peekFirst() != Attendance.Absent);
isAbsentOk = isAbsentOk || (this.records_.peekLast() != Attendance.Absent);
if (isAbsentOk) {
PrizeNode c = new PrizeNode();
@SuppressWarnings("unchecked")
LinkedList<Attendance> a = (LinkedList<Attendance>) this.records_.clone();
if (a.size() >= 2) {
a.poll();
}
a.offer(Attendance.Absent);
c.setRecords(a);
c.setTardiness(this.tardiness_);
result.add(c);
}
return result;
}