com.twitter.scalding

NullTap

class NullTap[Config, Input, Output, SourceContext, SinkContext] extends SinkTap[Config, Output]

A tap that output nothing. It is used to drive execution of a task for side effect only. This can be used to drive a pipe without actually writing to HDFS.

Linear Supertypes
SinkTap[Config, Output], Tap[Config, Void, Output], Traceable, FlowElement, Serializable, AnyRef, Any
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. NullTap
  2. SinkTap
  3. Tap
  4. Traceable
  5. FlowElement
  6. Serializable
  7. AnyRef
  8. Any
  1. Hide All
  2. Show all
Learn more about member selection
Visibility
  1. Public
  2. All

Instance Constructors

  1. new NullTap()

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 commitResource(arg0: Config): Boolean

    Definition Classes
    Tap
    Annotations
    @throws( classOf[java.io.IOException] )

  9. def createResource(conf: Config): Boolean

    Definition Classes
    NullTap → Tap

  10. def createResource(arg0: FlowProcess[Config]): Boolean

    Definition Classes
    Tap
    Annotations
    @throws( classOf[java.io.IOException] )

  11. def deleteResource(conf: Config): Boolean

    Definition Classes
    NullTap → Tap

  12. def deleteResource(arg0: FlowProcess[Config]): Boolean

    Definition Classes
    Tap
    Annotations
    @throws( classOf[java.io.IOException] )

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

    Definition Classes
    AnyRef

  14. def equals(arg0: Any): Boolean

    Definition Classes
    Tap → AnyRef → Any

  15. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  16. def flowConfInit(arg0: Flow[Config]): Unit

    Definition Classes
    Tap

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

    Definition Classes
    AnyRef → Any

  18. def getConfigDef(): ConfigDef

    Definition Classes
    Tap → FlowElement

  19. def getFullIdentifier(arg0: Config): String

    Definition Classes
    Tap

  20. def getFullIdentifier(arg0: FlowProcess[Config]): String

    Definition Classes
    Tap

  21. def getIdentifier(): String

    Definition Classes
    NullTap → Tap

  22. def getModifiedTime(conf: Config): Long

    Definition Classes
    NullTap → Tap

  23. def getModifiedTime(arg0: FlowProcess[Config]): Long

    Definition Classes
    Tap
    Annotations
    @throws( classOf[java.io.IOException] )

  24. def getScheme(): Scheme[Config, Void, Output, _, _]

    Definition Classes
    Tap

  25. def getSinkFields(): Fields

    Definition Classes
    Tap

  26. def getSinkMode(): SinkMode

    Definition Classes
    Tap

  27. def getSourceFields(): Fields

    Definition Classes
    SinkTap → Tap

  28. def getStepConfigDef(): ConfigDef

    Definition Classes
    Tap → FlowElement

  29. def getTrace(): String

    Definition Classes
    Tap → Traceable

  30. def hasConfigDef(): Boolean

    Definition Classes
    Tap → FlowElement

  31. def hasStepConfigDef(): Boolean

    Definition Classes
    Tap → FlowElement

  32. def hashCode(): Int

    Definition Classes
    Tap → AnyRef → Any

  33. def isEquivalentTo(arg0: FlowElement): Boolean

    Definition Classes
    Tap → FlowElement

  34. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  35. def isKeep(): Boolean

    Definition Classes
    Tap

  36. def isReplace(): Boolean

    Definition Classes
    Tap

  37. def isSink(): Boolean

    Definition Classes
    Tap

  38. def isSource(): Boolean

    Definition Classes
    SinkTap → Tap

  39. def isTemporary(): Boolean

    Definition Classes
    Tap

  40. def isUpdate(): Boolean

    Definition Classes
    Tap

  41. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  42. final def notify(): Unit

    Definition Classes
    AnyRef

  43. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  44. def openForRead(arg0: FlowProcess[Config], arg1: Void): TupleEntryIterator

    Definition Classes
    SinkTap → Tap
    Annotations
    @throws( classOf[java.io.IOException] )

  45. def openForRead(arg0: FlowProcess[Config]): TupleEntryIterator

    Definition Classes
    Tap
    Annotations
    @throws( classOf[java.io.IOException] )

  46. def openForWrite(flowProcess: FlowProcess[Config], output: Output): TupleEntryCollector

    Definition Classes
    NullTap → Tap

  47. def openForWrite(arg0: FlowProcess[Config]): TupleEntryCollector

    Definition Classes
    Tap
    Annotations
    @throws( classOf[java.io.IOException] )

  48. def outgoingScopeFor(arg0: Set[Scope]): Scope

    Definition Classes
    Tap → FlowElement

  49. def presentSinkFields(arg0: FlowProcess[Config], arg1: Fields): Unit

    Definition Classes
    Tap

  50. def presentSourceFields(arg0: FlowProcess[Config], arg1: Fields): Unit

    Definition Classes
    Tap

  51. def resolveIncomingOperationArgumentFields(arg0: Scope): Fields

    Definition Classes
    Tap → FlowElement

  52. def resolveIncomingOperationPassThroughFields(arg0: Scope): Fields

    Definition Classes
    Tap → FlowElement

  53. def resourceExists(conf: Config): Boolean

    Definition Classes
    NullTap → Tap

  54. def resourceExists(arg0: FlowProcess[Config]): Boolean

    Definition Classes
    Tap
    Annotations
    @throws( classOf[java.io.IOException] )

  55. def retrieveSinkFields(arg0: FlowProcess[Config]): Fields

    Definition Classes
    Tap

  56. def retrieveSourceFields(arg0: FlowProcess[Config]): Fields

    Definition Classes
    Tap

  57. def rollbackResource(arg0: Config): Boolean

    Definition Classes
    Tap
    Annotations
    @throws( classOf[java.io.IOException] )

  58. def setScheme(arg0: Scheme[Config, Void, Output, _, _]): Unit

    Attributes
    protected[cascading.tap]
    Definition Classes
    Tap

  59. def sinkConfInit(arg0: FlowProcess[Config], arg1: Config): Unit

    Definition Classes
    Tap

  60. def sourceConfInit(arg0: FlowProcess[Config], arg1: Config): Unit

    Definition Classes
    SinkTap → Tap

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

    Definition Classes
    AnyRef

  62. def toString(): String

    Definition Classes
    Tap → AnyRef → Any

  63. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from SinkTap[Config, Output]

Inherited from Tap[Config, Void, Output]

Inherited from Traceable

Inherited from FlowElement

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped