Package org.apache.flink.table.runtime.dataview

Interface StateDataViewStore

All Known Implementing Classes:
PerKeyStateDataViewStore, PerWindowStateDataViewStore, UnsupportedStateDataViewStore
@Internal public interface StateDataViewStore
This interface contains methods for registering StateDataView with a managed store.

  • Method Summary

    Modifier and Type
    Method
    Description
    org.apache.flink.api.common.functions.RuntimeContext
    getRuntimeContext()
     
    <N, EE> StateListView<N,EE>
    getStateListView(String stateName, org.apache.flink.api.common.typeutils.TypeSerializer<EE> elementSerializer)
    Creates a state list view.
    <N, EK, EV> StateMapView<N,EK,EV>
    getStateMapView(String stateName, boolean supportNullKey, org.apache.flink.api.common.typeutils.TypeSerializer<EK> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<EV> valueSerializer)
    Creates a state map view.

  • Method Details

    • getStateMapView

      <N, EK, EV> StateMapView<N,EK,EV> getStateMapView(String stateName, boolean supportNullKey, org.apache.flink.api.common.typeutils.TypeSerializer<EK> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<EV> valueSerializer) throws Exception
      Creates a state map view.
      Type Parameters:
      N - Type of the namespace
      EK - External type of the keys in the map state
      EV - External type of the values in the map state
      Parameters:
      stateName - The name of underlying state of the map view
      supportNullKey - Whether the null key should be supported
      keySerializer - The key serializer
      valueSerializer - The value serializer
      Returns:
      a keyed map state
      Throws:
      Exception

    • getStateListView

      <N, EE> StateListView<N,EE> getStateListView(String stateName, org.apache.flink.api.common.typeutils.TypeSerializer<EE> elementSerializer) throws Exception
      Creates a state list view.
      Type Parameters:
      N - Type of the namespace
      EE - External type of the elements in the list state
      Parameters:
      stateName - The name of underlying state of the list view
      elementSerializer - The element serializer
      Returns:
      a keyed list state
      Throws:
      Exception

    • getRuntimeContext

      org.apache.flink.api.common.functions.RuntimeContext getRuntimeContext()