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c

org.apache.spark.sql.execution.streaming.state

StateStoreChangelogWriter

class StateStoreChangelogWriter extends Logging

Write changes to the key value state store instance to a changelog file. There are 2 types of records, put and delete. A put record is written as: | key length | key content | value length | value content | A delete record is written as: | key length | key content | -1 | Write an Int -1 to signal the end of file. The overall changelog format is: | put record | delete record | ... | put record | -1 |

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Instance Constructors

  1. new StateStoreChangelogWriter(fm: CheckpointFileManager, file: Path, compressionCodec: CompressionCodec)

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. def abort(): Unit
  5. final def asInstanceOf[T0]: T0
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  6. def clone(): AnyRef
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    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  7. def commit(): Unit
  8. def delete(key: Array[Byte]): Unit
  9. final def eq(arg0: AnyRef): Boolean
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  10. def equals(arg0: AnyRef): Boolean
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  11. def finalize(): Unit
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  12. final def getClass(): Class[_ <: AnyRef]
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    @native()
  13. def hashCode(): Int
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    @native()
  14. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
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  15. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
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  16. final def isInstanceOf[T0]: Boolean
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  17. def isTraceEnabled(): Boolean
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  18. def log: Logger
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  19. def logDebug(msg: => String, throwable: Throwable): Unit
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  20. def logDebug(msg: => String): Unit
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  21. def logError(msg: => String, throwable: Throwable): Unit
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  22. def logError(msg: => String): Unit
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  23. def logInfo(msg: => String, throwable: Throwable): Unit
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  24. def logInfo(msg: => String): Unit
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  25. def logName: String
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  26. def logTrace(msg: => String, throwable: Throwable): Unit
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  27. def logTrace(msg: => String): Unit
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  28. def logWarning(msg: => String, throwable: Throwable): Unit
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  29. def logWarning(msg: => String): Unit
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  30. final def ne(arg0: AnyRef): Boolean
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  31. final def notify(): Unit
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  32. final def notifyAll(): Unit
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  33. def put(key: Array[Byte], value: Array[Byte]): Unit
  34. var size: Int
  35. final def synchronized[T0](arg0: => T0): T0
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  36. def toString(): String
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  37. final def wait(): Unit
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  38. final def wait(arg0: Long, arg1: Int): Unit
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  39. final def wait(arg0: Long): Unit
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