Class/Object

com.twitter.scalding.source

CodecSource

Related Docs: object CodecSource | package source

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class CodecSource[T] extends FileSource with Mappable[T] with LocalTapSource

Source
CodecSource.scala
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Inherited
  1. CodecSource
  2. LocalTapSource
  3. Mappable
  4. TypedSource
  5. FileSource
  6. HfsTapProvider
  7. LocalSourceOverride
  8. SchemedSource
  9. Source
  10. Serializable
  11. AnyRef
  12. Any
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Value Members

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

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  4. def andThen[U](fn: (T) ⇒ U): typed.TypedSource[U]

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    Transform this TypedSource into another by mapping after.

    Transform this TypedSource into another by mapping after. We don't call this map because of conflicts with Mappable, unfortunately

    Definition Classes
    TypedSource
  5. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  6. def checkFlowDefNotNull()(implicit flowDef: FlowDef, mode: Mode): Unit

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    Attributes
    protected
    Definition Classes
    Source
  7. lazy val checkedInversion: MaxFailuresCheck[T, BytesWritable]

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    Attributes
    protected
  8. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
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    Annotations
    @throws( ... )
  9. def converter[U >: T]: TupleConverter[U]

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    Because TupleConverter cannot be covariant, we need to jump through this hoop.

    Because TupleConverter cannot be covariant, we need to jump through this hoop. A typical implementation might be: (implicit conv: TupleConverter[T]) and then:

    override def converter[U >: T] = TupleConverter.asSuperConverter[T, U](conv)

    Definition Classes
    CodecSourceTypedSource
  10. def createHdfsReadTap(hdfsMode: Hdfs): Tap[JobConf, _, _]

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    Attributes
    protected
    Definition Classes
    FileSource
  11. def createHfsTap(scheme: Scheme[JobConf, RecordReader[_, _], OutputCollector[_, _], _, _], path: String, sinkMode: SinkMode): Hfs

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    Definition Classes
    HfsTapProvider
  12. def createLocalTap(sinkMode: SinkMode): Tap[JobConf, _, _]

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    Creates a local tap.

    Creates a local tap.

    sinkMode

    The mode for handling output conflicts.

    returns

    A tap.

    Definition Classes
    LocalTapSourceLocalSourceOverride
  13. def createTap(readOrWrite: AccessMode)(implicit mode: Mode): Tap[_, _, _]

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    Subclasses of Source MUST override this method.

    Subclasses of Source MUST override this method. They may call out to TestTapFactory for making Taps suitable for testing.

    Definition Classes
    FileSourceSource
  14. final def eq(arg0: AnyRef): Boolean

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

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    Definition Classes
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  16. lazy val field: Fields

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  17. val fieldSym: Symbol

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  18. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
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    Annotations
    @throws( classOf[java.lang.Throwable] )
  19. final def flatMapTo[U](out: Fields)(mf: (T) ⇒ TraversableOnce[U])(implicit flowDef: FlowDef, mode: Mode, setter: TupleSetter[U]): Pipe

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    If you want to filter, you should use this and output a 0 or 1 length Iterable.

    If you want to filter, you should use this and output a 0 or 1 length Iterable. Filter does not change column names, and we generally expect to change columns here

    Definition Classes
    Mappable
  20. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  21. def goodHdfsPaths(hdfsMode: Hdfs): Iterable[String]

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    Attributes
    protected
    Definition Classes
    FileSource
  22. def hashCode(): Int

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    Definition Classes
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  23. val hdfsPaths: Seq[String]

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    Definition Classes
    CodecSourceFileSource
  24. def hdfsReadPathsAreGood(conf: Configuration): Boolean

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    Attributes
    protected
    Definition Classes
    FileSource
  25. def hdfsScheme: Scheme[JobConf, RecordReader[_, _], OutputCollector[_, _], _, _]

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    The scheme to use if the source is on hdfs.

    The scheme to use if the source is on hdfs.

    Definition Classes
    CodecSourceSchemedSource
  26. def hdfsWritePath: String

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    Definition Classes
    FileSource
  27. val injectionBox: Externalizer[Injection[T, BytesWritable]]

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  28. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  29. def localPaths: Seq[String]

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    A path to use for the local tap.

    A path to use for the local tap.

    Definition Classes
    CodecSourceLocalSourceOverride
  30. def localScheme: Scheme[Properties, InputStream, OutputStream, _, _]

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    The scheme to use if the source is local.

    The scheme to use if the source is local.

    Definition Classes
    SchemedSource
  31. def localWritePath: String

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    Definition Classes
    LocalSourceOverride
  32. final def mapTo[U](out: Fields)(mf: (T) ⇒ U)(implicit flowDef: FlowDef, mode: Mode, setter: TupleSetter[U]): Pipe

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    Definition Classes
    Mappable
  33. val maxFailures: Int

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

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

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

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    Definition Classes
    AnyRef
  37. def pathIsGood(globPattern: String, conf: Configuration): Boolean

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    Determines if a path is 'valid' for this source.

    Determines if a path is 'valid' for this source. In strict mode all paths must be valid. In non-strict mode, all invalid paths will be filtered out.

    Subclasses can override this to validate paths.

    The default implementation is a quick sanity check to look for missing or empty directories. It is necessary but not sufficient -- there are cases where this will return true but there is in fact missing data.

    TODO: consider writing a more in-depth version of this method in TimePathedSource that looks for TODO: missing days / hours etc.

    Attributes
    protected
    Definition Classes
    FileSource
  38. def read(implicit flowDef: FlowDef, mode: Mode): Pipe

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    Definition Classes
    Source
  39. val sinkMode: SinkMode

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    Definition Classes
    SchemedSource
  40. def sourceFields: Fields

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    Definition Classes
    TypedSource
  41. def sourceId: String

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    This is a name the refers to this exact instance of the source (put another way, if s1.sourceId == s2.sourceId, the job should work the same if one is replaced with the other

    This is a name the refers to this exact instance of the source (put another way, if s1.sourceId == s2.sourceId, the job should work the same if one is replaced with the other

    Definition Classes
    Source
  42. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  43. def toIterator(implicit config: Config, mode: Mode): Iterator[T]

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    Allows you to read a Tap on the submit node NOT FOR USE IN THE MAPPERS OR REDUCERS.

    Allows you to read a Tap on the submit node NOT FOR USE IN THE MAPPERS OR REDUCERS. Typical use might be to read in Job.next to determine if another job is needed

    Definition Classes
    CodecSourceMappable
  44. def toString(): String

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    Definition Classes
    AnyRef → Any
  45. def transformForRead(pipe: Pipe): Pipe

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    Definition Classes
    CodecSourceSource
  46. def transformForWrite(pipe: Pipe): Pipe

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    Definition Classes
    CodecSourceSource
  47. def transformInTest: Boolean

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    The mock passed in to scalding.JobTest may be considered as a mock of the Tap or the Source.

    The mock passed in to scalding.JobTest may be considered as a mock of the Tap or the Source. By default, as of 0.9.0, it is considered as a Mock of the Source. If you set this to true, the mock in TestMode will be considered to be a mock of the Tap (which must be transformed) and not the Source.

    Definition Classes
    Source
  48. def validateTaps(mode: Mode): Unit

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    Definition Classes
    FileSourceSource
  49. final def wait(): Unit

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

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

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    Annotations
    @throws( ... )
  52. def writeFrom(pipe: Pipe)(implicit flowDef: FlowDef, mode: Mode): Pipe

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    write the pipe but return the input so it can be chained into the next operation

    write the pipe but return the input so it can be chained into the next operation

    Definition Classes
    Source

Deprecated Value Members

  1. def readAtSubmitter[T](implicit mode: Mode, conv: TupleConverter[T]): Stream[T]

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    Definition Classes
    Source
    Annotations
    @deprecated
    Deprecated

    (Since version 0.9.0) replace with Mappable.toIterator

Inherited from LocalTapSource

Inherited from Mappable[T]

Inherited from typed.TypedSource[T]

Inherited from FileSource

Inherited from HfsTapProvider

Inherited from LocalSourceOverride

Inherited from SchemedSource

Inherited from Source

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped