com.twitter.summingbird.spark

PlatformPlanner

trait PlatformPlanner[P <: Platform[P]] extends AnyRef

The DAG handed to a platform by summingbird is a little hard to work with given that all the generic types have been erased. This helper gives you type safe methods to implement, and casts / coerces things for you.

TODO: Is this useful outside of the spark platform? Is it useful at all?

Source
PlatformPlanner.scala
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AnyRef, Any
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SparkPlatform
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Type Members

  1. case class PlanState[T](plan: P.Plan[T], visited: Visited) extends Product with Serializable

  2. type Prod[T] = Producer[P, T]

  3. type TailProd[T] = TailProducer[P, T]

  4. type Visited = Map[Prod[_], P.Plan[_]]

Abstract Value Members

  1. abstract def planAlsoProducer[E, R](ensure: TailProd[E], result: Prod[R], visited: Visited)(implicit arg0: ClassTag[R]): PlanState[R]

  2. abstract def planFlatMappedProducer[T, U](prod: Prod[T], visited: Visited, fn: (T) ⇒ TraversableOnce[U])(implicit arg0: ClassTag[U]): PlanState[U]

  3. abstract def planIdentityKeyedProducer[K, V](prod: Prod[(K, V)], visited: Visited): PlanState[(K, V)]

  4. abstract def planKeyFlatMappedProducer[K, V, K2](prod: Prod[(K, V)], visited: Visited, fn: (K) ⇒ TraversableOnce[K2]): PlanState[(K2, V)]

  5. abstract def planLeftJoinedProducer[K, V, JoinedV](prod: Prod[(K, V)], visited: Visited, service: P.Service[K, JoinedV])(implicit arg0: ClassTag[K], arg1: ClassTag[V]): PlanState[(K, (V, Option[JoinedV]))]

  6. abstract def planMergedProducer[T](l: Prod[T], r: Prod[T], visited: Visited): PlanState[T]

  7. abstract def planNamedProducer[T](prod: Prod[T], name: String, visited: Visited): PlanState[T]

  8. abstract def planOptionMappedProducer[T, U](prod: Prod[T], visited: Visited, fn: (T) ⇒ Option[U])(implicit arg0: ClassTag[U]): PlanState[U]

  9. abstract def planSource[T](source: P.Source[T], visited: Visited): PlanState[T]

  10. abstract def planSummer[K, V](summer: Summer[P, K, V], prod: Prod[(K, V)], visited: Visited, store: P.Store[K, V], semigroup: Semigroup[V])(implicit arg0: ClassTag[K], arg1: ClassTag[V]): PlanState[(K, (Option[V], V))]

  11. abstract def planValueFlatMappedProducer[K, V, U](prod: Prod[(K, V)], visited: Visited, fn: (V) ⇒ TraversableOnce[U])(implicit arg0: ClassTag[U]): PlanState[(K, U)]

  12. abstract def planWrittenProducer[T](prod: Prod[T], visited: Visited, sink: P.Sink[T])(implicit arg0: ClassTag[T]): PlanState[T]

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  1. final def !=(arg0: AnyRef): Boolean

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  2. final def !=(arg0: Any): Boolean

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  11. final def getClass(): Class[_]

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  16. final def notifyAll(): Unit

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  17. final def synchronized[T0](arg0: ⇒ T0): T0

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  18. def toPlan[T](producer: Prod[T], visited: Visited): PlanState[T]

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  19. def toString(): String

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  20. def visit[T](producer: Prod[T]): PlanState[T]

  21. final def wait(): Unit

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  22. final def wait(arg0: Long, arg1: Int): Unit

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  23. final def wait(arg0: Long): Unit

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