Package org.apache.flink.runtime.state

Interface StateBackend.KeyedStateBackendParameters<K>

Type Parameters:
K - The type of the keys by which the state is organized.
All Known Implementing Classes:
KeyedStateBackendParametersImpl
Enclosing interface:
StateBackend
@PublicEvolving public static interface StateBackend.KeyedStateBackendParameters<K>
Parameters passed to StateBackend.createKeyedStateBackend(KeyedStateBackendParameters).

  • Method Details

    • getEnv

      Environment getEnv()
      Returns:
      The runtime environment of the executing task.

    • getJobID

      org.apache.flink.api.common.JobID getJobID()

    • getOperatorIdentifier

      String getOperatorIdentifier()

    • getKeySerializer

      org.apache.flink.api.common.typeutils.TypeSerializer<K> getKeySerializer()

    • getNumberOfKeyGroups

      int getNumberOfKeyGroups()

    • getKeyGroupRange

      KeyGroupRange getKeyGroupRange()
      Returns:
      Range of key-groups for which the to-be-created backend is responsible.

    • getKvStateRegistry

      TaskKvStateRegistry getKvStateRegistry()

    • getTtlTimeProvider

      TtlTimeProvider getTtlTimeProvider()
      Returns:
      Provider for TTL logic to judge about state expiration.

    • getMetricGroup

      org.apache.flink.metrics.MetricGroup getMetricGroup()

    • getStateHandles

      @Nonnull Collection<KeyedStateHandle> getStateHandles()

    • getCancelStreamRegistry

      org.apache.flink.core.fs.CloseableRegistry getCancelStreamRegistry()
      Returns:
      The registry to which created closeable objects will be * registered during restore.

    • getManagedMemoryFraction

      double getManagedMemoryFraction()

    • getCustomInitializationMetrics

      StateBackend.CustomInitializationMetrics getCustomInitializationMetrics()