Packages

class ToNumberParser extends Serializable

This class represents a parser to implement the to_number or try_to_number SQL functions.

It works by consuming an input string and a format string. This class accepts the format string as a field, and proceeds to iterate through the format string to generate a sequence of tokens (or throw an exception if the format string is invalid). Then when the function is called with an input string, this class steps through the sequence of tokens and compares them against the input string, returning a Spark Decimal object if they match (or throwing an exception otherwise).

Linear Supertypes
Serializable, Serializable, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. ToNumberParser
  2. Serializable
  3. Serializable
  4. AnyRef
  5. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new ToNumberParser(numberFormat: String, errorOnFail: Boolean)

    numberFormat

    the format string describing the expected inputs.

    errorOnFail

    true if evaluation should throw an exception if the input string fails to match the format string. Otherwise, returns NULL instead.

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. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def checkInputDataTypes(): TypeCheckResult
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  9. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  10. def format(input: Decimal): UTF8String

    Converts a decimal value to a string based on the given number format.

    Converts a decimal value to a string based on the given number format.

    Iterates through the formatTokens obtained from processing the format string, while also inspecting the input decimal value.

    input

    the decimal value that needs to be converted

    returns

    the result String value obtained from string formatting

  11. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  12. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  14. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  15. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  16. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  17. def parse(input: UTF8String): Decimal

    Convert string to numeric based on the given number format.

    Convert string to numeric based on the given number format.

    Iterates through the formatTokens obtained from processing the format string, while also keeping a parallel index into the input string. Throws an exception if the latter does not contain expected characters at any point.

    input

    the string that needs to converted

    returns

    the result Decimal value obtained from string parsing

  18. def parsedDecimalType: DecimalType

    The result type of this parsing is a Decimal value with the appropriate precision and scale.

  19. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  20. def toString(): String
    Definition Classes
    AnyRef → Any
  21. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  22. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  23. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped