@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((dateDimension == null) ? 0 : dateDimension.hashCode());
result = prime * result + ((aggregatedGroup == null) ? 0 : aggregatedGroup.hashCode());
result = prime * result + ((interval == null) ? 0 : interval.hashCode());
result = prime * result + ((timeDimension == null) ? 0 : timeDimension.hashCode());
return result;
}
