Package org.apache.flink.runtime.scheduler.adaptivebatch

Interface StreamGraphOptimizationStrategy

Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface StreamGraphOptimizationStrategy
Defines an optimization strategy for StreamGraph. Implementors of this interface provide methods to modify and optimize a StreamGraph based on contexts provided at runtime.

  • Field Details

    • STREAM_GRAPH_OPTIMIZATION_STRATEGY

      @Internal static final org.apache.flink.configuration.ConfigOption<List<String>> STREAM_GRAPH_OPTIMIZATION_STRATEGY

  • Method Details

    • initialize

      default void initialize(StreamGraphContext context)
      Initializes the StreamGraphOptimizationStrategy with the provided StreamGraphContext.
      Parameters:
      context - the StreamGraphContext with a read-only view of a StreamGraph, providing methods to modify StreamEdges and StreamNodes within the StreamGraph.

    • onOperatorsFinished

      boolean onOperatorsFinished(OperatorsFinished operatorsFinished, StreamGraphContext context) throws Exception
      Tries to optimize the StreamGraph using the provided OperatorsFinished and StreamGraphContext. The method returns a boolean indicating whether the StreamGraph was successfully optimized.
      Parameters:
      operatorsFinished - the OperatorsFinished object containing information about completed operators and their produced data size and distribution information.
      context - the StreamGraphContext with a read-only view of a StreamGraph, providing methods to modify StreamEdges and StreamNodes within the StreamGraph.
      Returns:
      true if the StreamGraph was successfully optimized; false otherwise.
      Throws:
      Exception