com.google.cloud.dataflow.sdk.util.state

Interface CombiningValueState<InputT,OutputT>

Type Parameters:

InputT - the type of values added to the state

OutputT - the type of value extracted from the state

All Superinterfaces:

MergeableState<InputT,OutputT>, State

All Known Subinterfaces:

CombiningValueStateInternal<InputT,AccumT,OutputT>

public interface CombiningValueState<InputT,OutputT>
extends MergeableState<InputT,OutputT>

State that combines multiple InputT values using a Combine.CombineFn to produce a single OutputT value.

Method Summary

Methods inherited from interface com.google.cloud.dataflow.sdk.util.state.MergeableState

add, get, isEmpty

Methods inherited from interface com.google.cloud.dataflow.sdk.util.state.State

clear