Package org.apache.flink.streaming.api.runners.python.beam.state

Interface BeamStateStore

All Known Implementing Classes:

BeamKeyedStateStore, BeamOperatorStateStore

public interface BeamStateStore

Interface for getting the underlying state based on Beam state request (keyed state or operator state).

Field Summary

Fields

Modifier and Type	Field	Description
static final String	PYTHON_STATE_PREFIX

Method Summary

Modifier and Type	Method	Description
org.apache.flink.api.common.state.ListState<byte[]>	getListState(org.apache.beam.model.fnexecution.v1.BeamFnApi.StateRequest request)	Parse BeamFnApi.StateRequest and return the corresponding ListState.
org.apache.flink.api.common.state.MapState<ByteArrayWrapper,byte[]>	getMapState(org.apache.beam.model.fnexecution.v1.BeamFnApi.StateRequest request)	Parse BeamFnApi.StateRequest and return the corresponding MapState.
static BeamStateStore	unsupported()

Field Details

PYTHON_STATE_PREFIX

static final String PYTHON_STATE_PREFIX

See Also:

• Constant Field Values

Method Details

getListState

org.apache.flink.api.common.state.ListState<byte[]> getListState(org.apache.beam.model.fnexecution.v1.BeamFnApi.StateRequest request)
                                                          throws Exception

Parse BeamFnApi.StateRequest and return the corresponding ListState.

Throws:

Exception

getMapState

org.apache.flink.api.common.state.MapState<ByteArrayWrapper,byte[]> getMapState(org.apache.beam.model.fnexecution.v1.BeamFnApi.StateRequest request)
                                                                         throws Exception

Parse BeamFnApi.StateRequest and return the corresponding MapState.

Throws:

Exception

unsupported

static BeamStateStore unsupported()