Package org.apache.flink.api.common.state

Interface MergingState<IN,​OUT>

  • Type Parameters:
    IN - Type of the value that can be added to the state.
    OUT - Type of the value that can be retrieved from the state.
    All Superinterfaces:
    AppendingState<IN,​OUT>, State
    All Known Subinterfaces:
    AggregatingState<IN,​OUT>, ListState<T>, ReducingState<T>
    @PublicEvolving
public interface MergingState<IN,​OUT>
extends AppendingState<IN,​OUT>
    Extension of AppendingState that allows merging of state. That is, two instances of MergingState can be combined into a single instance that contains all the information of the two merged states.

    • Method Summary

      • Methods inherited from interface org.apache.flink.api.common.state.State

        clear