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c

org.apache.spark.sql.delta.actions

InMemoryLogReplay

class InMemoryLogReplay extends AnyRef

Replays a history of action, resolving them to produce the current state of the table. The protocol for resolution is as follows:

  • The most recent AddFile and accompanying metadata for any path wins.
  • RemoveFile deletes a corresponding AddFile and is retained as a tombstone until minFileRetentionTimestamp has passed.
  • The most recent version for any appId in a SetTransaction wins.
  • The most recent Metadata wins.
  • The most recent Protocol version wins.
  • For each path, this class should always output only one FileAction (either AddFile or RemoveFile)

This class is not thread safe.

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Instance Constructors

  1. new InMemoryLogReplay(minFileRetentionTimestamp: Long)

Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  3. final def ==(arg0: Any): Boolean
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  4. val activeFiles: HashMap[URI, AddFile]
  5. def append(version: Long, actions: Iterator[Action]): Unit
  6. final def asInstanceOf[T0]: T0
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  7. def checkpoint: Iterator[Action]

    Returns the current state of the Table as an iterator of actions.

  8. def clone(): AnyRef
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    @throws( ... ) @native()
  9. var currentMetaData: Metadata
  10. var currentProtocolVersion: Protocol
  11. var currentVersion: Long
  12. final def eq(arg0: AnyRef): Boolean
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  13. def equals(arg0: Any): Boolean
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  14. def finalize(): Unit
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  15. final def getClass(): Class[_]
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  16. def hashCode(): Int
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  17. final def isInstanceOf[T0]: Boolean
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  18. final def ne(arg0: AnyRef): Boolean
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  19. final def notify(): Unit
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  20. final def notifyAll(): Unit
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  21. final def synchronized[T0](arg0: ⇒ T0): T0
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  22. def toString(): String
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  23. val transactions: HashMap[String, SetTransaction]
  24. final def wait(): Unit
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  25. final def wait(arg0: Long, arg1: Int): Unit
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  26. final def wait(arg0: Long): Unit
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