Package org.apache.flink.api.common.aggregators

Interface Summary

Interface	Description
Aggregator<T extends Value>	Aggregators are a means of aggregating values across parallel instances of a function.
ConvergenceCriterion<T extends Value>	Used to check for convergence.

Class Summary

Class	Description
AggregatorRegistry	A registry for iteration Aggregators.
AggregatorWithName<T extends Value>	Simple utility class holding an Aggregator with the name it is registered under.
DoubleSumAggregator	An Aggregator that sums up DoubleValue values.
DoubleZeroConvergence	A ConvergenceCriterion over an Aggregator that defines convergence as reached once the aggregator holds the value zero.
LongSumAggregator	An Aggregator that sums up long values.
LongZeroConvergence	A ConvergenceCriterion over an Aggregator that defines convergence as reached once the aggregator holds the value zero.