com.twitter.summingbird.batch.store

HDFSMetadata

class HDFSMetadata extends AnyRef

Class to access metadata for a single versioned output directory

Source
HDFSMetadata.scala
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Instance Constructors

  1. new HDFSMetadata(conf: Configuration, rootPath: String)

    rootPath

    the base root path to where versions of a single output are stored

Value Members

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

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

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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

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  6. def apply(version: Long): HDFSVersionMetadata

    Refer to a specific version, even if it does not exist on disk

  7. final def asInstanceOf[T0]: T0

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  8. def clone(): AnyRef

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

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  10. def equals(arg0: Any): Boolean

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  11. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )

  12. def find[T](fn: (T) ⇒ Boolean)(implicit arg0: JsonNodeInjection[T]): Option[(T, HDFSVersionMetadata)]

    Find the newest version that satisfies a predicate

  13. def get(version: Long): Option[HDFSVersionMetadata]

    Get a version's metadata IF it exists on disk

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

    Definition Classes
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  15. def hashCode(): Int

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  16. final def isInstanceOf[T0]: Boolean

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  17. def mostRecentVersion: Option[HDFSVersionMetadata]

    The greatest version number that has been completed on disk

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

    Definition Classes
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  19. def newVersion: Long

    Create a new version number that is greater than all previous

  20. final def notify(): Unit

    Definition Classes
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  21. final def notifyAll(): Unit

    Definition Classes
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  22. def select[T](fn: (T) ⇒ Boolean)(implicit arg0: JsonNodeInjection[T]): Iterable[(T, HDFSVersionMetadata)]

    select all versions that satisfy a predicate

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

    Definition Classes
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  24. def toString(): String

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  25. val versionedStore: VersionedStore

    Attributes
    protected

  26. def versions: Iterable[Long]

    This touches the filesystem once on each call, newest (largest) to oldest (smallest) This relies on dfs-datastore doing the sorting, which it does last we checked

  27. final def wait(): Unit

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

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

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