com.persistit

Class Accumulator.SumAccumulator

java.lang.Object

com.persistit.Accumulator

com.persistit.Accumulator.SumAccumulator

Enclosing class:

Accumulator

public static final class Accumulator.SumAccumulator
extends Accumulator

An Accumulator that computes a sum

Nested Class Summary

Nested classes/interfaces inherited from class com.persistit.Accumulator

Accumulator.MaxAccumulator, Accumulator.MinAccumulator, Accumulator.SeqAccumulator, Accumulator.SumAccumulator, Accumulator.Type

Field Summary

Fields inherited from class com.persistit.Accumulator

_tree

Method Summary

Modifier and Type	Method and Description
void	add(long value) Add the supplied value to this SumAccumulator.

Methods inherited from class com.persistit.Accumulator

getLiveValue, getSnapshotValue, toString

Methods inherited from class java.lang.Object

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

Method Detail

add

public void add(long value)

Add the supplied value to this SumAccumulator. The contribution is immediately accumulated into the live value, and it is also posted with a Deltainstance to the supplied Transaction. This method may be called only within the scope of an active Transaction.

Parameters:

value - The delta value