Packages

case class GpuRand(child: Expression) extends UnaryExpression with ShimUnaryExpression with GpuExpression with ExpectsInputTypes with ExpressionWithRandomSeed with Product with Serializable

Generate a random column with i.i.d. uniformly distributed values in [0, 1).

Linear Supertypes
Serializable, Serializable, ExpressionWithRandomSeed, ExpectsInputTypes, GpuExpression, Arm, ShimUnaryExpression, UnaryExpression, UnaryLike[Expression], Expression, TreeNode[Expression], TreePatternBits, Product, Equals, AnyRef, Any
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Inherited
  1. GpuRand
  2. Serializable
  3. Serializable
  4. ExpressionWithRandomSeed
  5. ExpectsInputTypes
  6. GpuExpression
  7. Arm
  8. ShimUnaryExpression
  9. UnaryExpression
  10. UnaryLike
  11. Expression
  12. TreeNode
  13. TreePatternBits
  14. Product
  15. Equals
  16. AnyRef
  17. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new GpuRand()
  2. new GpuRand(child: Expression)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def apply(number: Int): TreeNode[_]
    Definition Classes
    TreeNode
  5. def argString(maxFields: Int): String
    Definition Classes
    TreeNode
  6. def asCode: String
    Definition Classes
    TreeNode
  7. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  8. lazy val canonicalized: Expression
    Definition Classes
    GpuExpression → Expression
  9. def checkInputDataTypes(): TypeCheckResult
    Definition Classes
    ExpectsInputTypes → Expression
  10. val child: Expression
    Definition Classes
    GpuRand → UnaryLike
  11. final lazy val children: Seq[Expression]
    Definition Classes
    UnaryLike
    Annotations
    @transient()
  12. def childrenResolved: Boolean
    Definition Classes
    Expression
  13. def clone(): Expression
    Definition Classes
    TreeNode → AnyRef
  14. def closeOnExcept[T <: AutoCloseable, V](r: Option[T])(block: (Option[T]) ⇒ V): V

    Executes the provided code block, closing the resources only if an exception occurs

    Executes the provided code block, closing the resources only if an exception occurs

    Definition Classes
    Arm
  15. def closeOnExcept[T <: AutoCloseable, V](r: ArrayBuffer[T])(block: (ArrayBuffer[T]) ⇒ V): V

    Executes the provided code block, closing the resources only if an exception occurs

    Executes the provided code block, closing the resources only if an exception occurs

    Definition Classes
    Arm
  16. def closeOnExcept[T <: AutoCloseable, V](r: Array[T])(block: (Array[T]) ⇒ V): V

    Executes the provided code block, closing the resources only if an exception occurs

    Executes the provided code block, closing the resources only if an exception occurs

    Definition Classes
    Arm
  17. def closeOnExcept[T <: AutoCloseable, V](r: Seq[T])(block: (Seq[T]) ⇒ V): V

    Executes the provided code block, closing the resources only if an exception occurs

    Executes the provided code block, closing the resources only if an exception occurs

    Definition Classes
    Arm
  18. def closeOnExcept[T <: AutoCloseable, V](r: T)(block: (T) ⇒ V): V

    Executes the provided code block, closing the resource only if an exception occurs

    Executes the provided code block, closing the resource only if an exception occurs

    Definition Classes
    Arm
  19. def collect[B](pf: PartialFunction[Expression, B]): Seq[B]
    Definition Classes
    TreeNode
  20. def collectFirst[B](pf: PartialFunction[Expression, B]): Option[B]
    Definition Classes
    TreeNode
  21. def collectLeaves(): Seq[Expression]
    Definition Classes
    TreeNode
  22. def columnarEval(batch: ColumnarBatch): Any

    Returns the result of evaluating this expression on the entire ColumnarBatch.

    Returns the result of evaluating this expression on the entire ColumnarBatch. The result of calling this may be a single GpuColumnVector or a scalar value. Scalar values typically happen if they are a part of the expression i.e. col("a") + 100. In this case the 100 is a literal that Add would have to be able to handle.

    By convention any GpuColumnVector returned by columnarEval is owned by the caller and will need to be closed by them. This can happen by putting it into a ColumnarBatch and closing the batch or by closing the vector directly if it is a temporary value.

    Definition Classes
    GpuRand → GpuExpression
  23. final def containsAllPatterns(patterns: TreePattern*): Boolean
    Definition Classes
    TreePatternBits
  24. final def containsAnyPattern(patterns: TreePattern*): Boolean
    Definition Classes
    TreePatternBits
  25. lazy val containsChild: Set[TreeNode[_]]
    Definition Classes
    TreeNode
  26. final def containsPattern(t: TreePattern): Boolean
    Definition Classes
    TreePatternBits
    Annotations
    @inline()
  27. def convertToAst(numFirstTableColumns: Int): AstExpression

    Build an equivalent representation of this expression in a cudf AST.

    Build an equivalent representation of this expression in a cudf AST.

    numFirstTableColumns

    number of columns in the leftmost input table. Spark places the columns of all inputs in a single sequence, while cudf AST uses an explicit table reference to make column indices unique. This parameter helps translate input column references from Spark's single sequence into cudf's separate sequences.

    returns

    top node of the equivalent AST

    Definition Classes
    GpuExpression
  28. def copyTagsFrom(other: Expression): Unit
    Definition Classes
    TreeNode
  29. def dataType: DataType
    Definition Classes
    GpuRand → Expression
  30. def defineCodeGen(ctx: CodegenContext, ev: ExprCode, f: (String) ⇒ String): ExprCode
    Attributes
    protected
    Definition Classes
    UnaryExpression
  31. lazy val deterministic: Boolean
    Definition Classes
    Expression
  32. def disableCoalesceUntilInput(): Boolean

    Override this if your expression cannot allow combining of data from multiple files into a single batch before it operates on them.

    Override this if your expression cannot allow combining of data from multiple files into a single batch before it operates on them. These are for things like getting the input file name. Which for spark is stored in a thread local variable which means we have to jump through some hoops to make this work.

    Definition Classes
    GpuExpression
  33. final def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode
    Definition Classes
    GpuExpression → Expression
  34. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  35. final def eval(input: InternalRow = null): Any
    Definition Classes
    GpuExpression → Expression
  36. def fastEquals(other: TreeNode[_]): Boolean
    Definition Classes
    TreeNode
  37. def find(f: (Expression) ⇒ Boolean): Option[Expression]
    Definition Classes
    TreeNode
  38. def flatArguments: Iterator[Any]
    Attributes
    protected
    Definition Classes
    Expression
  39. def flatMap[A](f: (Expression) ⇒ TraversableOnce[A]): Seq[A]
    Definition Classes
    TreeNode
  40. def foldable: Boolean
    Definition Classes
    UnaryExpression → Expression
  41. def foreach(f: (Expression) ⇒ Unit): Unit
    Definition Classes
    TreeNode
  42. def foreachUp(f: (Expression) ⇒ Unit): Unit
    Definition Classes
    TreeNode
  43. def freeOnExcept[T <: RapidsBuffer, V](r: T)(block: (T) ⇒ V): V

    Executes the provided code block, freeing the RapidsBuffer only if an exception occurs

    Executes the provided code block, freeing the RapidsBuffer only if an exception occurs

    Definition Classes
    Arm
  44. def genCode(ctx: CodegenContext): ExprCode
    Definition Classes
    Expression
  45. def generateTreeString(depth: Int, lastChildren: Seq[Boolean], append: (String) ⇒ Unit, verbose: Boolean, prefix: String, addSuffix: Boolean, maxFields: Int, printNodeId: Boolean, indent: Int): Unit
    Definition Classes
    TreeNode
  46. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  47. def getDefaultTreePatternBits: BitSet
    Attributes
    protected
    Definition Classes
    TreeNode
  48. def getTagValue[T](tag: TreeNodeTag[T]): Option[T]
    Definition Classes
    TreeNode
  49. def hasSideEffects: Boolean

    Could evaluating this expression cause side-effects, such as throwing an exception?

    Could evaluating this expression cause side-effects, such as throwing an exception?

    Definition Classes
    GpuExpression
  50. def hashCode(): Int
    Definition Classes
    TreeNode → AnyRef → Any
  51. def innerChildren: Seq[TreeNode[_]]
    Definition Classes
    TreeNode
  52. def inputTypes: Seq[AbstractDataType]
    Definition Classes
    GpuRand → ExpectsInputTypes
  53. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  54. def isRuleIneffective(ruleId: RuleId): Boolean
    Attributes
    protected
    Definition Classes
    TreeNode
  55. def jsonFields: List[JField]
    Attributes
    protected
    Definition Classes
    TreeNode
  56. final def legacyWithNewChildren(newChildren: Seq[Expression]): Expression
    Attributes
    protected
    Definition Classes
    TreeNode
  57. def makeCopy(newArgs: Array[AnyRef]): Expression
    Definition Classes
    TreeNode
  58. def map[A](f: (Expression) ⇒ A): Seq[A]
    Definition Classes
    TreeNode
  59. final def mapChildren(f: (Expression) ⇒ Expression): Expression
    Definition Classes
    UnaryLike
  60. def mapProductIterator[B](f: (Any) ⇒ B)(implicit arg0: ClassTag[B]): Array[B]
    Attributes
    protected
    Definition Classes
    TreeNode
  61. def markRuleAsIneffective(ruleId: RuleId): Unit
    Attributes
    protected
    Definition Classes
    TreeNode
  62. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  63. def nodeName: String
    Definition Classes
    TreeNode
  64. val nodePatterns: Seq[TreePattern]
    Definition Classes
    ExpressionWithRandomSeed → TreeNode
  65. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  66. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  67. def nullSafeCodeGen(ctx: CodegenContext, ev: ExprCode, f: (String) ⇒ String): ExprCode
    Attributes
    protected
    Definition Classes
    UnaryExpression
  68. def nullSafeEval(input: Any): Any
    Attributes
    protected
    Definition Classes
    UnaryExpression
  69. def nullable: Boolean
    Definition Classes
    GpuRand → UnaryExpression → Expression
  70. def numberedTreeString: String
    Definition Classes
    TreeNode
  71. val origin: Origin
    Definition Classes
    TreeNode
  72. def otherCopyArgs: Seq[AnyRef]
    Attributes
    protected
    Definition Classes
    TreeNode
  73. def p(number: Int): Expression
    Definition Classes
    TreeNode
  74. def prettyJson: String
    Definition Classes
    TreeNode
  75. def prettyName: String
    Definition Classes
    Expression
  76. var previousPartition: Int
    Attributes
    protected
  77. def references: AttributeSet
    Definition Classes
    Expression
  78. lazy val resolved: Boolean
    Definition Classes
    Expression
  79. var rng: XORShiftRandom

    Record ID within each partition.

    Record ID within each partition. By being transient, the Random Number Generator is reset every time we serialize and deserialize and initialize it.

    Attributes
    protected
  80. lazy val seed: Long
    Attributes
    protected
    Annotations
    @transient()
  81. def seedExpression: Expression
    Definition Classes
    GpuRand → ExpressionWithRandomSeed
  82. final def semanticEquals(other: Expression): Boolean
    Definition Classes
    Expression
  83. def semanticHash(): Int
    Definition Classes
    Expression
  84. def setTagValue[T](tag: TreeNodeTag[T], value: T): Unit
    Definition Classes
    TreeNode
  85. def simpleString(maxFields: Int): String
    Definition Classes
    Expression → TreeNode
  86. def simpleStringWithNodeId(): String
    Definition Classes
    Expression → TreeNode
  87. def sql: String
    Definition Classes
    Expression
  88. def stringArgs: Iterator[Any]
    Attributes
    protected
    Definition Classes
    TreeNode
  89. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  90. def toJSON: String
    Definition Classes
    TreeNode
  91. def toString(): String
    Definition Classes
    Expression → TreeNode → AnyRef → Any
  92. def transform(rule: PartialFunction[Expression, Expression]): Expression
    Definition Classes
    TreeNode
  93. def transformDown(rule: PartialFunction[Expression, Expression]): Expression
    Definition Classes
    TreeNode
  94. def transformDownWithPruning(cond: (TreePatternBits) ⇒ Boolean, ruleId: RuleId)(rule: PartialFunction[Expression, Expression]): Expression
    Definition Classes
    TreeNode
  95. def transformUp(rule: PartialFunction[Expression, Expression]): Expression
    Definition Classes
    TreeNode
  96. def transformUpWithBeforeAndAfterRuleOnChildren(cond: (Expression) ⇒ Boolean, ruleId: RuleId)(rule: PartialFunction[(Expression, Expression), Expression]): Expression
    Definition Classes
    TreeNode
  97. def transformUpWithPruning(cond: (TreePatternBits) ⇒ Boolean, ruleId: RuleId)(rule: PartialFunction[Expression, Expression]): Expression
    Definition Classes
    TreeNode
  98. def transformWithPruning(cond: (TreePatternBits) ⇒ Boolean, ruleId: RuleId)(rule: PartialFunction[Expression, Expression]): Expression
    Definition Classes
    TreeNode
  99. lazy val treePatternBits: BitSet
    Definition Classes
    TreeNode → TreePatternBits
  100. def treeString(append: (String) ⇒ Unit, verbose: Boolean, addSuffix: Boolean, maxFields: Int, printOperatorId: Boolean): Unit
    Definition Classes
    TreeNode
  101. final def treeString(verbose: Boolean, addSuffix: Boolean, maxFields: Int, printOperatorId: Boolean): String
    Definition Classes
    TreeNode
  102. final def treeString: String
    Definition Classes
    TreeNode
  103. def unsetTagValue[T](tag: TreeNodeTag[T]): Unit
    Definition Classes
    TreeNode
  104. final def verboseString(maxFields: Int): String
    Definition Classes
    Expression → TreeNode
  105. def verboseStringWithSuffix(maxFields: Int): String
    Definition Classes
    TreeNode
  106. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  107. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  108. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  109. def withNewChildInternal(newChild: Expression): Expression
    Definition Classes
    ShimUnaryExpression → UnaryLike
  110. final def withNewChildren(newChildren: Seq[Expression]): Expression
    Definition Classes
    TreeNode
  111. final def withNewChildrenInternal(newChildren: IndexedSeq[Expression]): Expression
    Definition Classes
    UnaryLike
  112. def withNewSeed(seed: Long): GpuRand
    Definition Classes
    GpuRand → ExpressionWithRandomSeed
  113. def withResource[T <: AutoCloseable, V](h: CloseableHolder[T])(block: (CloseableHolder[T]) ⇒ V): V

    Executes the provided code block and then closes the resource

    Executes the provided code block and then closes the resource

    Definition Classes
    Arm
  114. def withResource[T <: AutoCloseable, V](r: ArrayBuffer[T])(block: (ArrayBuffer[T]) ⇒ V): V

    Executes the provided code block and then closes the array buffer of resources

    Executes the provided code block and then closes the array buffer of resources

    Definition Classes
    Arm
  115. def withResource[T <: AutoCloseable, V](r: Array[T])(block: (Array[T]) ⇒ V): V

    Executes the provided code block and then closes the array of resources

    Executes the provided code block and then closes the array of resources

    Definition Classes
    Arm
  116. def withResource[T <: AutoCloseable, V](r: Seq[T])(block: (Seq[T]) ⇒ V): V

    Executes the provided code block and then closes the sequence of resources

    Executes the provided code block and then closes the sequence of resources

    Definition Classes
    Arm
  117. def withResource[T <: AutoCloseable, V](r: Option[T])(block: (Option[T]) ⇒ V): V

    Executes the provided code block and then closes the Option[resource]

    Executes the provided code block and then closes the Option[resource]

    Definition Classes
    Arm
  118. def withResource[T <: AutoCloseable, V](r: T)(block: (T) ⇒ V): V

    Executes the provided code block and then closes the resource

    Executes the provided code block and then closes the resource

    Definition Classes
    Arm
  119. def withResourceIfAllowed[T, V](r: T)(block: (T) ⇒ V): V

    Executes the provided code block and then closes the value if it is AutoCloseable

    Executes the provided code block and then closes the value if it is AutoCloseable

    Definition Classes
    Arm

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] ) @Deprecated
    Deprecated

Inherited from Serializable

Inherited from Serializable

Inherited from ExpressionWithRandomSeed

Inherited from ExpectsInputTypes

Inherited from GpuExpression

Inherited from Arm

Inherited from ShimUnaryExpression

Inherited from UnaryExpression

Inherited from UnaryLike[Expression]

Inherited from Expression

Inherited from TreeNode[Expression]

Inherited from TreePatternBits

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped