Object

org.apache.spark.h2o.utils

H2OSchemaUtils

Related Doc: package utils

Permalink

object H2OSchemaUtils

Utilities for working with Spark SQL component.

Linear Supertypes
AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. H2OSchemaUtils
  2. AnyRef
  3. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Value Members

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

    Permalink
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

    Permalink
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

    Permalink
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

    Permalink
    Definition Classes
    Any
  5. def clone(): AnyRef

    Permalink
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  6. def collectArrayLikeTypes(flatSchema: StructType): Seq[Int]

    Permalink
  7. def collectElemStartPositions(maxElemSizes: Array[Int]): Array[Int]

    Permalink

    Mapping from row in Spark frame to position where to start filling in H2OFrame

  8. def collectMaxElementSizes(sc: SparkContext, flatDataFrame: DataFrame): Array[Int]

    Permalink

    Collect max size of each element in DataFrame.

    Collect max size of each element in DataFrame. For array -> max array size For vectors -> max vector size For simple types -> 1

    returns

    array containing size of each element

  9. def collectStringIndices(flatSchema: StructType): Seq[Int]

    Permalink
  10. def collectVectorLikeTypes(flatSchema: StructType): Seq[Int]

    Permalink
  11. def createSchema[T <: Frame](f: T, copyMetadata: Boolean): StructType

    Permalink
  12. final def eq(arg0: AnyRef): Boolean

    Permalink
    Definition Classes
    AnyRef
  13. def equals(arg0: Any): Boolean

    Permalink
    Definition Classes
    AnyRef → Any
  14. def expandWithoutVectors(sc: SparkContext, flatSchema: StructType, elemMaxSizes: Array[Int]): Seq[StructField]

    Permalink
  15. def expandedSchema(sc: SparkContext, flatSchema: StructType, elemMaxSizes: Array[Int]): Seq[StructField]

    Permalink

    Returns expanded schema

    Returns expanded schema

    • schema is represented as list of types
    • all arrays are expanded into columns based on the longest one
    • all vectors are expanded into columns based on the longest one
    sc

    Spark context

    flatSchema

    flat schema of spark data frame

    returns

    list of types with their positions

  16. def finalize(): Unit

    Permalink
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  17. def flattenDataFrame(df: DataFrame): DataFrame

    Permalink
  18. def flattenSchema(schema: StructType, prefix: String = null, nullable: Boolean = false): StructType

    Permalink
  19. def flattenSchemaToCol(schema: StructType, prefix: String = null): Array[Column]

    Permalink
  20. final def getClass(): Class[_]

    Permalink
    Definition Classes
    AnyRef → Any
  21. def hashCode(): Int

    Permalink
    Definition Classes
    AnyRef → Any
  22. final def isInstanceOf[T0]: Boolean

    Permalink
    Definition Classes
    Any
  23. final def ne(arg0: AnyRef): Boolean

    Permalink
    Definition Classes
    AnyRef
  24. final def notify(): Unit

    Permalink
    Definition Classes
    AnyRef
  25. final def notifyAll(): Unit

    Permalink
    Definition Classes
    AnyRef
  26. def renamedDFWithoutDots(df: DataFrame, substPattern: String): DataFrame

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

    Permalink
    Definition Classes
    AnyRef
  28. def toString(): String

    Permalink
    Definition Classes
    AnyRef → Any
  29. final def wait(): Unit

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  30. final def wait(arg0: Long, arg1: Int): Unit

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  31. final def wait(arg0: Long): Unit

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from AnyRef

Inherited from Any

Ungrouped