org.apache.spark.storage

BlockObjectWriter

abstract class BlockObjectWriter extends AnyRef

An interface for writing JVM objects to some underlying storage. This interface allows appending data to an existing block, and can guarantee atomicity in the case of faults as it allows the caller to revert partial writes.

This interface does not support concurrent writes.

Linear Supertypes
AnyRef, Any
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. Hide All
  2. Show all
  1. BlockObjectWriter
  2. AnyRef
  3. Any
Visibility
  1. Public
  2. All

Instance Constructors

  1. new BlockObjectWriter(blockId: String)

Abstract Value Members

  1. abstract def commit(): Long

    Flush the partial writes and commit them as a single atomic block.

    Flush the partial writes and commit them as a single atomic block. Return the number of bytes written for this commit.

  2. abstract def isOpen: Boolean

  3. abstract def open(): BlockObjectWriter

  4. abstract def revertPartialWrites(): Unit

    Reverts writes that haven't been flushed yet.

    Reverts writes that haven't been flushed yet. Callers should invoke this function when there are runtime exceptions.

  5. abstract def size(): Long

    Size of the valid writes, in bytes.

  6. abstract def write(value: Any): Unit

    Writes an object.

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. val blockId: String

  8. def clone(): AnyRef

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()

  9. def close(): Unit

  10. var closeEventHandler: () ⇒ Unit

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

    Definition Classes
    AnyRef

  12. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  13. def finalize(): Unit

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()

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

    Definition Classes
    AnyRef → Any

  15. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  16. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

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

    Definition Classes
    AnyRef

  18. final def notify(): Unit

    Definition Classes
    AnyRef

  19. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  20. def registerCloseEventHandler(handler: () ⇒ Unit): Unit

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

    Definition Classes
    AnyRef

  22. def toString(): String

    Definition Classes
    AnyRef → Any

  23. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()

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

    Definition Classes
    AnyRef
    Annotations
    @throws()

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

    Definition Classes
    AnyRef
    Annotations
    @throws()

Inherited from AnyRef

Inherited from Any