@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((f == null) ? 0 : f.hashCode());
result = prime * result + ((fPrime == null) ? 0 : fPrime.hashCode());
result = prime * result + ((h == null) ? 0 : h.hashCode());
result = prime * result + ((params == null) ? 0 : params.hashCode());
return result;
}
