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

Interface Summary

Interface	Description
AppendingState<IN,OUT>	Base interface for partitioned state that supports adding elements and inspecting the current state.
FoldingState<T,ACC>	State interface for folding state.
ListState<T>	State interface for partitioned list state in Operations.
MergingState<IN,OUT>	Extension of AppendingState that allows merging of state.
OperatorState<T>	Deprecated OperatorState has been replaced by ValueState.
ReducingState<T>	State interface for reducing state.
State	Interface that different types of partitioned state must implement.
StateBackend	The StateBackend is used by StateDescriptor instances to create actual state representations.
ValueState<T>	State interface for partitioned single-value state.

Class Summary

Class	Description
FoldingStateDescriptor<T,ACC>	StateDescriptor for FoldingState.
ListStateDescriptor<T>	A StateDescriptor for ListState.
ReducingStateDescriptor<T>	StateDescriptor for ReducingState.
StateDescriptor<S extends State,T>	Base class for state descriptors.
ValueStateDescriptor<T>	StateDescriptor for ValueState.