接口 com.dangdang.ddframe.rdb.sharding.merger.groupby.aggregation.AggregationUnit
的使用

使用AggregationUnit的程序包

程序包	说明
com.dangdang.ddframe.rdb.sharding.merger.groupby.aggregation

com.dangdang.ddframe.rdb.sharding.merger.groupby.aggregation中AggregationUnit的使用

实现AggregationUnit的com.dangdang.ddframe.rdb.sharding.merger.groupby.aggregation中的类

限定符和类型	类和说明
class	AccumulationAggregationUnit Accumulation aggregation unit.
class	AverageAggregationUnit Average aggregation unit.
class	ComparableAggregationUnit Comparable aggregation unit.

返回AggregationUnit的com.dangdang.ddframe.rdb.sharding.merger.groupby.aggregation中的方法

限定符和类型	方法和说明
static AggregationUnit	AggregationUnitFactory.create(AggregationType type) Create aggregation unit instance.