Package org.apache.flink.state.changelog

Class AbstractChangelogStateBackend

java.lang.Object
org.apache.flink.state.changelog.AbstractChangelogStateBackend
All Implemented Interfaces:
Serializable, org.apache.flink.runtime.state.delegate.DelegatingStateBackend, org.apache.flink.runtime.state.StateBackend
Direct Known Subclasses:
ChangelogStateBackend, DeactivatedChangelogStateBackend
@Internal public abstract class AbstractChangelogStateBackend extends Object implements org.apache.flink.runtime.state.delegate.DelegatingStateBackend, org.apache.flink.runtime.state.StateBackend
An abstract base implementation of the StateBackend interface whose subclasses use delegatedStateBackend and State changes to restore.
See Also:

  • Nested Class Summary

    Nested classes/interfaces inherited from interface org.apache.flink.runtime.state.StateBackend

    org.apache.flink.runtime.state.StateBackend.CustomInitializationMetrics, org.apache.flink.runtime.state.StateBackend.KeyedStateBackendParameters<K extends Object>, org.apache.flink.runtime.state.StateBackend.OperatorStateBackendParameters

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected final org.apache.flink.runtime.state.StateBackend
    delegatedStateBackend
     

  • Method Summary

    Modifier and Type
    Method
    Description
    <K> org.apache.flink.runtime.state.CheckpointableKeyedStateBackend<K>
    createKeyedStateBackend(org.apache.flink.runtime.state.StateBackend.KeyedStateBackendParameters<K> parameters)
     
    org.apache.flink.runtime.state.OperatorStateBackend
    createOperatorStateBackend(org.apache.flink.runtime.state.StateBackend.OperatorStateBackendParameters parameters)
     
    org.apache.flink.runtime.state.StateBackend
    getDelegatedStateBackend()
     
    protected abstract <K> org.apache.flink.runtime.state.CheckpointableKeyedStateBackend<K>
    restore(org.apache.flink.runtime.execution.Environment env, String operatorIdentifier, org.apache.flink.runtime.state.KeyGroupRange keyGroupRange, org.apache.flink.runtime.state.ttl.TtlTimeProvider ttlTimeProvider, org.apache.flink.metrics.MetricGroup metricGroup, Collection<org.apache.flink.runtime.state.changelog.ChangelogStateBackendHandle> stateBackendHandles, ChangelogBackendRestoreOperation.BaseBackendBuilder<K> baseBackendBuilder)
     
    boolean
    supportsSavepointFormat(org.apache.flink.core.execution.SavepointFormatType formatType)
     
    boolean
    useManagedMemory()
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface org.apache.flink.runtime.state.delegate.DelegatingStateBackend

    getName

    Methods inherited from interface org.apache.flink.runtime.state.StateBackend

    createAsyncKeyedStateBackend, supportsAsyncKeyedStateBackend, supportsNoClaimRestoreMode

  • Field Details

    • delegatedStateBackend

      protected final org.apache.flink.runtime.state.StateBackend delegatedStateBackend

  • Method Details

    • createKeyedStateBackend

      public <K> org.apache.flink.runtime.state.CheckpointableKeyedStateBackend<K> createKeyedStateBackend(org.apache.flink.runtime.state.StateBackend.KeyedStateBackendParameters<K> parameters) throws Exception
      Specified by:
      createKeyedStateBackend in interface org.apache.flink.runtime.state.StateBackend
      Throws:
      Exception

    • createOperatorStateBackend

      public org.apache.flink.runtime.state.OperatorStateBackend createOperatorStateBackend(org.apache.flink.runtime.state.StateBackend.OperatorStateBackendParameters parameters) throws Exception
      Specified by:
      createOperatorStateBackend in interface org.apache.flink.runtime.state.StateBackend
      Throws:
      Exception

    • useManagedMemory

      public boolean useManagedMemory()
      Specified by:
      useManagedMemory in interface org.apache.flink.runtime.state.StateBackend

    • getDelegatedStateBackend

      public org.apache.flink.runtime.state.StateBackend getDelegatedStateBackend()
      Specified by:
      getDelegatedStateBackend in interface org.apache.flink.runtime.state.delegate.DelegatingStateBackend

    • supportsSavepointFormat

      public boolean supportsSavepointFormat(org.apache.flink.core.execution.SavepointFormatType formatType)
      Specified by:
      supportsSavepointFormat in interface org.apache.flink.runtime.state.StateBackend

    • restore

      protected abstract <K> org.apache.flink.runtime.state.CheckpointableKeyedStateBackend<K> restore(org.apache.flink.runtime.execution.Environment env, String operatorIdentifier, org.apache.flink.runtime.state.KeyGroupRange keyGroupRange, org.apache.flink.runtime.state.ttl.TtlTimeProvider ttlTimeProvider, org.apache.flink.metrics.MetricGroup metricGroup, Collection<org.apache.flink.runtime.state.changelog.ChangelogStateBackendHandle> stateBackendHandles, ChangelogBackendRestoreOperation.BaseBackendBuilder<K> baseBackendBuilder) throws Exception
      Throws:
      Exception