Packages

  • package root
    Definition Classes
    root
  • package org
    Definition Classes
    root
  • package apache
    Definition Classes
    org
  • package spark
    Definition Classes
    apache
  • package sql
    Definition Classes
    spark
  • package catalyst

    Catalyst is a library for manipulating relational query plans.

    Catalyst is a library for manipulating relational query plans. All classes in catalyst are considered an internal API to Spark SQL and are subject to change between minor releases.

    Definition Classes
    sql
  • package expressions

    A set of classes that can be used to represent trees of relational expressions.

    A set of classes that can be used to represent trees of relational expressions. A key goal of the expression library is to hide the details of naming and scoping from developers who want to manipulate trees of relational operators. As such, the library defines a special type of expression, a NamedExpression in addition to the standard collection of expressions.

    Standard Expressions

    A library of standard expressions (e.g., Add, EqualTo), aggregates (e.g., SUM, COUNT), and other computations (e.g. UDFs). Each expression type is capable of determining its output schema as a function of its children's output schema.

    Named Expressions

    Some expression are named and thus can be referenced by later operators in the dataflow graph. The two types of named expressions are AttributeReferences and Aliases. AttributeReferences refer to attributes of the input tuple for a given operator and form the leaves of some expression trees. Aliases assign a name to intermediate computations. For example, in the SQL statement SELECT a+b AS c FROM ..., the expressions a and b would be represented by AttributeReferences and c would be represented by an Alias.

    During analysis, all named expressions are assigned a globally unique expression id, which can be used for equality comparisons. While the original names are kept around for debugging purposes, they should never be used to check if two attributes refer to the same value, as plan transformations can result in the introduction of naming ambiguity. For example, consider a plan that contains subqueries, both of which are reading from the same table. If an optimization removes the subqueries, scoping information would be destroyed, eliminating the ability to reason about which subquery produced a given attribute.

    Evaluation

    The result of expressions can be evaluated using the Expression.apply(Row) method.

    Definition Classes
    catalyst
  • package json
    Definition Classes
    expressions
  • GetJsonObjectEvaluator
  • JsonExpressionUtils
  • JsonPathParser
  • JsonToStructsEvaluator
  • JsonTupleEvaluator
  • PathInstruction
  • SchemaOfJsonEvaluator
  • StructsToJsonEvaluator

object JsonPathParser extends RegexParsers

Linear Supertypes
RegexParsers, Parsers, AnyRef, Any
Ordering
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Inherited
  1. JsonPathParser
  2. RegexParsers
  3. Parsers
  4. AnyRef
  5. Any
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Visibility
  1. Public
  2. Protected

Type Members

  1. type Elem = Char
    Definition Classes
    RegexParsers → Parsers
  2. case class Error extends NoSuccess with Product with Serializable
    Definition Classes
    Parsers
  3. case class Failure extends NoSuccess with Product with Serializable
    Definition Classes
    Parsers
  4. type Input = Reader[Elem]
    Definition Classes
    Parsers
  5. sealed abstract class NoSuccess extends ParseResult[Nothing]
    Definition Classes
    Parsers
  6. trait OnceParser[+T] extends Parser[T]
    Definition Classes
    Parsers
  7. sealed abstract class ParseResult[+T] extends AnyRef
    Definition Classes
    Parsers
  8. abstract class Parser[+T] extends (Input) => ParseResult[T]
    Definition Classes
    Parsers
  9. case class Success[+T] extends ParseResult[T] with Product with Serializable
    Definition Classes
    Parsers
  10. case class ~[+a, +b] extends Product with Serializable
    Definition Classes
    Parsers

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 OnceParser[T](f: (Input) => ParseResult[T]): Parser[T] with OnceParser[T]
    Definition Classes
    Parsers
  5. def Parser[T](f: (Input) => ParseResult[T]): Parser[T]
    Definition Classes
    Parsers
  6. def accept[U](expected: String, f: PartialFunction[Elem, U]): Parser[U]
    Definition Classes
    Parsers
  7. def accept[ES](es: ES)(implicit f: (ES) => List[Elem]): Parser[List[Elem]]
    Definition Classes
    Parsers
  8. implicit def accept(e: Elem): Parser[Elem]
    Definition Classes
    Parsers
  9. def acceptIf(p: (Elem) => Boolean)(err: (Elem) => String): Parser[Elem]
    Definition Classes
    Parsers
  10. def acceptMatch[U](expected: String, f: PartialFunction[Elem, U]): Parser[U]
    Definition Classes
    Parsers
  11. def acceptSeq[ES](es: ES)(implicit f: (ES) => Iterable[Elem]): Parser[List[Elem]]
    Definition Classes
    Parsers
  12. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  13. def chainl1[T, U](first: => Parser[T], p: => Parser[U], q: => Parser[(T, U) => T]): Parser[T]
    Definition Classes
    Parsers
  14. def chainl1[T](p: => Parser[T], q: => Parser[(T, T) => T]): Parser[T]
    Definition Classes
    Parsers
  15. def chainr1[T, U](p: => Parser[T], q: => Parser[(T, U) => U], combine: (T, U) => U, first: U): Parser[U]
    Definition Classes
    Parsers
  16. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @IntrinsicCandidate() @native()
  17. def commit[T](p: => Parser[T]): Parser[T]
    Definition Classes
    Parsers
  18. def elem(e: Elem): Parser[Elem]
    Definition Classes
    Parsers
  19. def elem(kind: String, p: (Elem) => Boolean): Parser[Elem]
    Definition Classes
    Parsers
  20. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  21. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  22. def err(msg: String): Parser[Nothing]
    Definition Classes
    RegexParsers → Parsers
  23. val expression: Parser[List[PathInstruction]]
  24. def failure(msg: String): Parser[Nothing]
    Definition Classes
    Parsers
  25. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @IntrinsicCandidate() @native()
  26. def guard[T](p: => Parser[T]): Parser[T]
    Definition Classes
    Parsers
  27. def handleWhiteSpace(source: CharSequence, offset: Int): Int
    Attributes
    protected
    Definition Classes
    RegexParsers
  28. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @IntrinsicCandidate() @native()
  29. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  30. implicit def literal(s: String): Parser[String]
    Definition Classes
    RegexParsers
  31. def log[T](p: => Parser[T])(name: String): Parser[T]
    Definition Classes
    Parsers
  32. def long: Parser[Long]
  33. def mkList[T]: (~[T, List[T]]) => List[T]
    Definition Classes
    Parsers
  34. def named: Parser[List[PathInstruction]]
  35. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  36. def node: Parser[List[PathInstruction]]
  37. def not[T](p: => Parser[T]): Parser[Unit]
    Definition Classes
    Parsers
  38. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @IntrinsicCandidate() @native()
  39. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @IntrinsicCandidate() @native()
  40. def opt[T](p: => Parser[T]): Parser[Option[T]]
    Definition Classes
    Parsers
  41. def parse(str: String): Option[List[PathInstruction]]
  42. def parse[T](p: Parser[T], in: Reader): ParseResult[T]
    Definition Classes
    RegexParsers
  43. def parse[T](p: Parser[T], in: CharSequence): ParseResult[T]
    Definition Classes
    RegexParsers
  44. def parse[T](p: Parser[T], in: Reader[Char]): ParseResult[T]
    Definition Classes
    RegexParsers
  45. def parseAll[T](p: Parser[T], in: CharSequence): ParseResult[T]
    Definition Classes
    RegexParsers
  46. def parseAll[T](p: Parser[T], in: Reader): ParseResult[T]
    Definition Classes
    RegexParsers
  47. def parseAll[T](p: Parser[T], in: Reader[Char]): ParseResult[T]
    Definition Classes
    RegexParsers
  48. def phrase[T](p: Parser[T]): Parser[T]
    Definition Classes
    RegexParsers → Parsers
  49. def positioned[T <: Positional](p: => Parser[T]): Parser[T]
    Definition Classes
    RegexParsers → Parsers
  50. implicit def regex(r: Regex): Parser[String]
    Definition Classes
    RegexParsers
  51. def rep[T](p: => Parser[T]): Parser[List[T]]
    Definition Classes
    Parsers
  52. def rep1[T](first: => Parser[T], p0: => Parser[T]): Parser[List[T]]
    Definition Classes
    Parsers
  53. def rep1[T](p: => Parser[T]): Parser[List[T]]
    Definition Classes
    Parsers
  54. def rep1sep[T](p: => Parser[T], q: => Parser[Any]): Parser[List[T]]
    Definition Classes
    Parsers
  55. def repN[T](num: Int, p: => Parser[T]): Parser[List[T]]
    Definition Classes
    Parsers
  56. def repNM[T](n: Int, m: Int, p: Parser[T], sep: Parser[Any]): Parser[List[T]]
    Definition Classes
    Parsers
  57. def repsep[T](p: => Parser[T], q: => Parser[Any]): Parser[List[T]]
    Definition Classes
    Parsers
  58. def root: Parser[Char]
  59. def skipWhitespace: Boolean
    Definition Classes
    RegexParsers
  60. def subscript: Parser[List[PathInstruction]]
  61. def success[T](v: T): Parser[T]
    Definition Classes
    Parsers
  62. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  63. def toString(): String
    Definition Classes
    AnyRef → Any
  64. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  65. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  66. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  67. val whiteSpace: Regex
    Attributes
    protected
    Definition Classes
    RegexParsers
  68. def wildcard: Parser[List[PathInstruction]]

Deprecated Value Members

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

    (Since version 9)

Inherited from RegexParsers

Inherited from Parsers

Inherited from AnyRef

Inherited from Any

Ungrouped