对象 SparkUtils

用于访问 Spark 内部函数的工具类

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  1. SparkUtils
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  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 appendColumn(schema: StructType, colName: String, dataType: DataType, nullable: Boolean = false): StructType
  5. def appendVectorUDTColumn(schema: StructType, colName: String, dataType: DataType = new VectorUDT, nullable: Boolean = false): StructType
  6. final def asInstanceOf[T0]: T0
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  7. def checkNumericType(schema: StructType, colName: String, msg: String = ""): Unit
  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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  12. final def getClass(): Class[_]
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  13. def getNumClasses(dataset: Dataset[_], labelCol: String, maxNumClasses: Int = 100): Int
  14. def hashCode(): Int
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  15. final def isInstanceOf[T0]: Boolean
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  16. def isVectorType(dataType: DataType): Boolean
  17. def loadMetadata(path: String, sc: SparkContext, expectedClassName: String = ""): Metadata
  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. def saveMetadata(instance: Params, path: String, sc: SparkContext, extraMetadata: Option[JObject] = None, paramMap: Option[JValue] = None): Unit
  22. final def synchronized[T0](arg0: ⇒ T0): T0
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  23. def toString(): String
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  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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