org.apache.spark.streaming

StreamingContext

object StreamingContext extends Logging

StreamingContext object contains a number of utility functions related to the StreamingContext class.

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

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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. final def asInstanceOf[T0]: T0

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  7. def clone(): AnyRef

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

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  9. def equals(arg0: Any): Boolean

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  10. def finalize(): Unit

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

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  12. def getOrCreate(checkpointPath: String, creatingFunc: () ⇒ StreamingContext, hadoopConf: Configuration = new Configuration(), createOnError: Boolean = false): StreamingContext

    Either recreate a StreamingContext from checkpoint data or create a new StreamingContext.

    Either recreate a StreamingContext from checkpoint data or create a new StreamingContext. If checkpoint data exists in the provided checkpointPath, then StreamingContext will be recreated from the checkpoint data. If the data does not exist, then the StreamingContext will be created by called the provided creatingFunc.

    checkpointPath

    Checkpoint directory used in an earlier StreamingContext program

    creatingFunc

    Function to create a new StreamingContext

    hadoopConf

    Optional Hadoop configuration if necessary for reading from the file system

    createOnError

    Optional, whether to create a new StreamingContext if there is an error in reading checkpoint data. By default, an exception will be thrown on error.

  13. def hashCode(): Int

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  14. final def isInstanceOf[T0]: Boolean

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  15. def isTraceEnabled(): Boolean

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    protected
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    Logging

  16. def jarOfClass(cls: Class[_]): Option[String]

    Find the JAR from which a given class was loaded, to make it easy for users to pass their JARs to StreamingContext.

  17. def log: Logger

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  18. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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  19. def logDebug(msg: ⇒ String): Unit

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  20. def logError(msg: ⇒ String, throwable: Throwable): Unit

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  21. def logError(msg: ⇒ String): Unit

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  22. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

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  23. def logInfo(msg: ⇒ String): Unit

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  24. def logName: String

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  25. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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  26. def logTrace(msg: ⇒ String): Unit

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  27. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

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  28. def logWarning(msg: ⇒ String): Unit

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

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  30. final def notify(): Unit

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  31. final def notifyAll(): Unit

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

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  33. implicit def toPairDStreamFunctions[K, V](stream: DStream[(K, V)])(implicit kt: ClassTag[K], vt: ClassTag[V], ord: Ordering[K] = null): PairDStreamFunctions[K, V]

  34. def toString(): String

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  35. final def wait(): Unit

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

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

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