AggregationValue
AggregationValue value;
AggregationValue value = new CountValue(7);
AggregationValue value = getLinearDistribution();
AggregationValue value = getCountValue();
implements AggregationValue, Serializable
AggregationRecord(Tuple tupleKey, AggregationValue recordValue, int n)
public AggregationValue
private AggregationValue value;
AggregationRecord(Tuple tupleKey, AggregationValue recordValue)
public abstract class Distribution implements AggregationValue,