Package org.apache.flink.state.changelog

Class ChangelogStateBackend

java.lang.Object
org.apache.flink.state.changelog.AbstractChangelogStateBackend
org.apache.flink.state.changelog.ChangelogStateBackend
All Implemented Interfaces:
Serializable, org.apache.flink.runtime.state.ConfigurableStateBackend, org.apache.flink.runtime.state.delegate.DelegatingStateBackend, org.apache.flink.runtime.state.StateBackend
@Internal public class ChangelogStateBackend extends AbstractChangelogStateBackend implements org.apache.flink.runtime.state.ConfigurableStateBackend
This state backend holds the working state in the underlying delegatedStateBackend, and forwards state changes to State Changelog.
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 inherited from class org.apache.flink.state.changelog.AbstractChangelogStateBackend

    delegatedStateBackend

  • Method Summary

    Modifier and Type
    Method
    Description
    org.apache.flink.runtime.state.StateBackend
    configure(org.apache.flink.configuration.ReadableConfig config, ClassLoader classLoader)
     
    protected <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)
     

    Methods inherited from class org.apache.flink.state.changelog.AbstractChangelogStateBackend

    createKeyedStateBackend, createOperatorStateBackend, getDelegatedStateBackend, supportsSavepointFormat, 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, createKeyedStateBackend, createOperatorStateBackend, supportsAsyncKeyedStateBackend, supportsNoClaimRestoreMode, supportsSavepointFormat, useManagedMemory

  • Method Details

    • configure

      public org.apache.flink.runtime.state.StateBackend configure(org.apache.flink.configuration.ReadableConfig config, ClassLoader classLoader) throws org.apache.flink.configuration.IllegalConfigurationException
      Specified by:
      configure in interface org.apache.flink.runtime.state.ConfigurableStateBackend
      Throws:
      org.apache.flink.configuration.IllegalConfigurationException

    • restore

      protected <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
      Specified by:
      restore in class AbstractChangelogStateBackend
      Throws:
      Exception