Package com.hazelcast.jet.pipeline

Interface SinkStage

All Superinterfaces:
Stage
public interface SinkStage extends Stage
A pipeline stage that doesn't allow any downstream stages to be attached to it. Corresponds to a data sink.
Since:
Jet 3.0

  • Method Summary

    Modifier and Type
    Method
    Description
    SinkStage
    setLocalParallelism(int localParallelism)
    Sets the preferred local parallelism (number of processors per Jet cluster member) this stage will configure its DAG vertices with.
    SinkStage
    setName(String name)
    Overrides the default name of the stage with the name you choose and returns the stage.

    Methods inherited from interface com.hazelcast.jet.pipeline.Stage

    getPipeline, name

  • Method Details

    • setLocalParallelism

      @Nonnull SinkStage setLocalParallelism(int localParallelism)
      Description copied from interface: Stage
      Sets the preferred local parallelism (number of processors per Jet cluster member) this stage will configure its DAG vertices with. Jet always uses the same number of processors on each member, so the total parallelism automatically increases if another member joins the cluster.

      While most stages are backed by 1 vertex, there are exceptions. If a stage uses two vertices, each of them will have the given local parallelism, so in total there will be twice as many processors per member.

      The default value is -1 and it signals to Jet to figure out a default value. Jet will determine the vertex's local parallelism during job initialization from the global default and the processor meta-supplier's preferred value.

      Specified by:
      setLocalParallelism in interface Stage
      Returns:
      this stage

    • setName

      @Nonnull SinkStage setName(@Nonnull String name)
      Description copied from interface: Stage
      Overrides the default name of the stage with the name you choose and returns the stage. This can be useful for debugging purposes, to better distinguish pipeline stages in the diagnostic output.
      Specified by:
      setName in interface Stage
      Parameters:
      name - the stage name
      Returns:
      this stage