com.twitter.summingbird.scalding

UniqueKeyedService

trait UniqueKeyedService[K, V] extends SimpleService[K, V]

A UniqueKeyedService covers the case where Keys are globally unique and either are not present or have one value. Examples could be Keys which are Unique IDs, such as UserIDs, content IDs, cryptographic hashes, etc...

Linear Supertypes
SimpleService[K, V], ScaldingService[K, V], Serializable, AnyRef, Any
Known Subclasses
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Inherited
  1. UniqueKeyedService
  2. SimpleService
  3. ScaldingService
  4. Serializable
  5. AnyRef
  6. Any
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Abstract Value Members

  1. abstract def ordering: Ordering[K]

  2. abstract def readDateRange(requested: DateRange)(implicit flowDef: FlowDef, mode: Mode): TypedPipe[(K, V)]

    Load the range of data to do a join

  3. abstract def reducers: Option[Int]

  4. abstract def satisfiable(requested: DateRange, mode: Mode): Try[DateRange]

    Return the maximum subset of the requested range that can be handled

    Return the maximum subset of the requested range that can be handled

    Definition Classes
    SimpleService

Concrete Value Members

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

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

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  7. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  8. def doJoin[W](in: TypedPipe[(Time, (K, W))], serv: TypedPipe[(K, V)])(implicit flowDef: FlowDef, mode: Mode): TypedPipe[(Time, (K, (W, Option[V])))]

    You can override this to use hashJoin for instance

  9. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  10. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  11. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  12. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  13. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  14. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  15. final def lookup[W](getKeys: PipeFactory[(K, W)]): PipeFactory[(K, (W, Option[V]))]

    Definition Classes
    SimpleServiceScaldingService
  16. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  17. final def notify(): Unit

    Definition Classes
    AnyRef
  18. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  19. final def serve[W](covering: DateRange, input: TypedPipe[(Long, (K, W))])(implicit flowDef: FlowDef, mode: Mode): TypedPipe[(Time, (K, (W, Option[V])))]

    Definition Classes
    UniqueKeyedServiceSimpleService
  20. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  21. def toString(): String

    Definition Classes
    AnyRef → Any
  22. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  23. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  24. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from SimpleService[K, V]

Inherited from ScaldingService[K, V]

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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