@Override
public int hashCode() {
int result = type != null ? type.hashCode() : 0;
result = 31 * result + (interval != null ? interval.hashCode() : 0);
result = 31 * result + (functions != null ? functions.hashCode() : 0);
return result;
}
/** Crude implementation of hashCode, so intervals could be stored in HashSets. */
public int hashCode() {
return interval.hashCode();
}