Package org.apache.calcite.util

Class Smalls.MySumFunction

java.lang.Object

org.apache.calcite.util.Smalls.MySumFunction

Enclosing class:

Smalls

public static class Smalls.MySumFunction
extends Object

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

Constructor Summary

Constructors

Constructor	Description
MySumFunction()

Method Summary

Modifier and Type	Method	Description
long	add(long accumulator, int v)
long	init()
long	merge(long accumulator0, long accumulator1)
long	result(long accumulator)

Methods inherited from class java.lang.Object

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

Constructor Details

MySumFunction

public MySumFunction()

Method Details

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)