Packages

  • package root
    Definition Classes
    root
  • package cloudflow
    Definition Classes
    root
  • package spark
    Definition Classes
    cloudflow
  • abstract class SparkStreamletLogic extends StreamletLogic[SparkStreamletContext]

    Provides an entry-point for defining the behavior of a SparkStreamlet.

    Provides an entry-point for defining the behavior of a SparkStreamlet. Overide the method buildStreamingQueries to build the collection of StreamingQuery that needs to run as part of the business logic for the SparkStreamlet.

    Here's an example of how to provide a specialized implementation of SparkStreamletLogic as part of implementing a custom SparkStreamlet:

    // new custom `SparkStreamlet`
object MySparkProcessor extends SparkStreamlet {
  // define inlets, outlets and shape

  // provide custom implementation of `SparkStreamletLogic`
  override def createLogic() = new SparkStreamletLogic {
    override def buildStreamingQueries = {
      val dataset = readStream(in)
      val outStream = dataset.select($"name").as[Simple]
      val query = writeStream(outStream, out, OutputMode.Append)
      Seq(query)
    }
  }
}
    Definition Classes
    spark
    Annotations
    @deprecated
    Deprecated

    (Since version 2.2.0) Use contrib-sbt-spark library instead, see https://github.com/lightbend/cloudflow-contrib

  • StreamingQueryExtensions
c

cloudflow.spark.SparkStreamletLogic

StreamingQueryExtensions

implicit class StreamingQueryExtensions extends AnyRef

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  1. new StreamingQueryExtensions(query: StreamingQuery)

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  15. val query: StreamingQuery
  16. final def synchronized[T0](arg0: ⇒ T0): T0
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  17. def toQueryExecution: StreamletQueryExecution
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