org.apache.calcite.util

类 Smalls.MySumFunction

java.lang.Object

org.apache.calcite.util.Smalls.MySumFunction

封闭类:

Smalls

public static class Smalls.MySumFunction
extends Object

Example of a user-defined aggregate function (UDAF).

构造器概要

构造器

构造器和说明
MySumFunction()

方法概要

限定符和类型	方法和说明
long	add(long accumulator, int v)
long	init()
long	merge(long accumulator0, long accumulator1)
long	result(long accumulator)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

MySumFunction

public MySumFunction()

方法详细资料

init

public long init()

add

public long add(long accumulator,
                int v)

merge

public long merge(long accumulator0,
                  long accumulator1)

result

public long result(long accumulator)