io.shardingsphere.core.merger.dql.groupby.aggregation

Interface AggregationUnit

All Known Implementing Classes:

AccumulationAggregationUnit, AverageAggregationUnit, ComparableAggregationUnit

public interface AggregationUnit

Aggregation unit interface.

Author:

gaohongtao

Method Summary

Modifier and Type	Method and Description
Comparable<?>	getResult() Get aggregation result.
void	merge(List<Comparable<?>> values) merge aggregation values.

Method Detail

merge

void merge(List<Comparable<?>> values)

merge aggregation values.

Parameters:

values - aggregation values

getResult

Comparable<?> getResult()

Get aggregation result.

Returns:

aggregation result