Package org.apache.flink.state.api.input

Class UnionStateInputFormat<OT>

java.lang.Object
org.apache.flink.api.common.io.RichInputFormat<OT,OperatorStateInputSplit>
org.apache.flink.state.api.input.UnionStateInputFormat<OT>
Type Parameters:
OT - The generic type of the state
All Implemented Interfaces:
Serializable, org.apache.flink.api.common.io.InputFormat<OT,OperatorStateInputSplit>, org.apache.flink.core.io.InputSplitSource<OperatorStateInputSplit>
@Internal public class UnionStateInputFormat<OT> extends org.apache.flink.api.common.io.RichInputFormat<OT,OperatorStateInputSplit>
Input format for reading operator union state.
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    UnionStateInputFormat(org.apache.flink.runtime.checkpoint.OperatorState operatorState, org.apache.flink.configuration.Configuration configuration, org.apache.flink.runtime.state.StateBackend backend, org.apache.flink.api.common.state.ListStateDescriptor<OT> descriptor, org.apache.flink.api.common.ExecutionConfig executionConfig)
    Creates an input format for reading union state from an operator in a savepoint.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
     
    void
    configure(org.apache.flink.configuration.Configuration parameters)
     
    OperatorStateInputSplit[]
    createInputSplits(int minNumSplits)
     
    protected final Iterable<OT>
    getElements(org.apache.flink.runtime.state.OperatorStateBackend restoredBackend)
     
    org.apache.flink.core.io.InputSplitAssigner
    getInputSplitAssigner(OperatorStateInputSplit[] inputSplits)
     
    org.apache.flink.api.common.io.statistics.BaseStatistics
    getStatistics(org.apache.flink.api.common.io.statistics.BaseStatistics cachedStatistics)
     
    OT
    nextRecord(OT reuse)
     
    void
    open(OperatorStateInputSplit split)
     
    boolean
    reachedEnd()
     

    Methods inherited from class org.apache.flink.api.common.io.RichInputFormat

    closeInputFormat, getRuntimeContext, openInputFormat, setRuntimeContext

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • UnionStateInputFormat

      public UnionStateInputFormat(org.apache.flink.runtime.checkpoint.OperatorState operatorState, org.apache.flink.configuration.Configuration configuration, @Nullable org.apache.flink.runtime.state.StateBackend backend, org.apache.flink.api.common.state.ListStateDescriptor<OT> descriptor, org.apache.flink.api.common.ExecutionConfig executionConfig) throws IOException
      Creates an input format for reading union state from an operator in a savepoint.
      Parameters:
      operatorState - The state to be queried.
      configuration - The cluster configuration for restoring the backend.
      backend - The state backend used to restore the state.
      descriptor - The descriptor for this state, providing a name and serializer.
      Throws:
      IOException

  • Method Details

    • getElements

      protected final Iterable<OT> getElements(org.apache.flink.runtime.state.OperatorStateBackend restoredBackend) throws Exception
      Throws:
      Exception

    • configure

      public void configure(org.apache.flink.configuration.Configuration parameters)

    • getStatistics

      public org.apache.flink.api.common.io.statistics.BaseStatistics getStatistics(org.apache.flink.api.common.io.statistics.BaseStatistics cachedStatistics)

    • getInputSplitAssigner

      public org.apache.flink.core.io.InputSplitAssigner getInputSplitAssigner(OperatorStateInputSplit[] inputSplits)

    • createInputSplits

      public OperatorStateInputSplit[] createInputSplits(int minNumSplits)

    • open

      public void open(OperatorStateInputSplit split) throws IOException
      Throws:
      IOException

    • close

      public void close()

    • reachedEnd

      public boolean reachedEnd()

    • nextRecord

      public OT nextRecord(OT reuse)