slick.compiler

FuseComprehensions

Related Doc: package compiler

class FuseComprehensions extends Phase

Fuse sub-comprehensions into their parents.

Source
Relational.scala
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Inherited
  1. FuseComprehensions
  2. Phase
  3. Logging
  4. Function1
  5. AnyRef
  6. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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  1. Public
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Instance Constructors

  1. new FuseComprehensions()

Type Members

  1. abstract type State

    The immutable state of the phase that can also be accessed by other phases.

    The immutable state of the phase that can also be accessed by other phases.

    Definition Classes
    Phase

Value Members

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

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

    Definition Classes
    AnyRef → Any
  3. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from FuseComprehensions to any2stringadd[FuseComprehensions] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (FuseComprehensions, B)

    Implicit information
    This member is added by an implicit conversion from FuseComprehensions to ArrowAssoc[FuseComprehensions] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  6. def andThen[A](g: (CompilerState) ⇒ A): (CompilerState) ⇒ A

    Definition Classes
    Function1
    Annotations
    @unspecialized()
  7. def apply(state: CompilerState): CompilerState

    Run the phase

    Run the phase

    Definition Classes
    FuseComprehensionsPhase → Function1
  8. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  9. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  10. def compose[A](g: (A) ⇒ CompilerState): (A) ⇒ CompilerState

    Definition Classes
    Function1
    Annotations
    @unspecialized()
  11. def createSelect(c: Comprehension): Comprehension

    Create a select for a Comprehension without one.

  12. def ensureStruct(c: Comprehension): Comprehension

    Rewrite a Comprehension to always return a StructNode

  13. def ensuring(cond: (FuseComprehensions) ⇒ Boolean, msg: ⇒ Any): FuseComprehensions

    Implicit information
    This member is added by an implicit conversion from FuseComprehensions to Ensuring[FuseComprehensions] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. def ensuring(cond: (FuseComprehensions) ⇒ Boolean): FuseComprehensions

    Implicit information
    This member is added by an implicit conversion from FuseComprehensions to Ensuring[FuseComprehensions] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. def ensuring(cond: Boolean, msg: ⇒ Any): FuseComprehensions

    Implicit information
    This member is added by an implicit conversion from FuseComprehensions to Ensuring[FuseComprehensions] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  16. def ensuring(cond: Boolean): FuseComprehensions

    Implicit information
    This member is added by an implicit conversion from FuseComprehensions to Ensuring[FuseComprehensions] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  17. final def eq(arg0: AnyRef): Boolean

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

    Definition Classes
    AnyRef → Any
  19. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  20. def fixConstantGrouping(c: Comprehension): Comprehension

    Remove constant GROUP BY criteria.

    Remove constant GROUP BY criteria. Not all databases support them and they never make sense. We filter all constant columns out of the grouping criteria. If any non-constant columns are left, they are kept as the new criteria, otherwise the GROUP BY clause is removed entirely. Since all column references to non-criteria columns can only be used with aggregation functions, this automatically turns the query into an aggregating query.

  21. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from FuseComprehensions to StringFormat[FuseComprehensions] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  22. def fuse(n: Node): Node

  23. def fuseComprehension(c: Comprehension): Comprehension

    Fuse simple Comprehensions (no orderBy, fetch or offset), which are contained in the 'from' list of another Comprehension, into their parent.

  24. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  25. def hasRefToOneOf(n: Node, s: Set[Symbol]): Boolean

  26. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  27. def isFuseable(outer: Comprehension, inner: Comprehension): Boolean

    Check if two comprehensions can be fused (assuming the outer and inner comprehension have already been deemed fuseable on their own).

  28. def isFuseableInner(sym: Symbol, c: Comprehension, prevSyms: Set[Symbol]): Boolean

    Check if a Comprehension should be fused into its parent.

    Check if a Comprehension should be fused into its parent. This happens in the following cases: - It has a Pure generator. - It does not have any generators. - The Comprehension has a 'select' clause which consists only of Paths, constant values and client-side type conversions. - It refers to a symbol introduced in a previous FROM clause of an outer Comprehension.

  29. def isFuseableOuter(c: Comprehension): Boolean

    Check if a comprehension allow sub-comprehensions to be fused.

    Check if a comprehension allow sub-comprehensions to be fused. This is the case if it has a select clause and not more than one sub-comprehension with a groupBy clause.

  30. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  31. def liftAggregates(c: Comprehension): Comprehension

    Lift aggregates of sub-queries into the 'from' list or inline them (if they would refer to unreachable symbols when used in 'from' position).

  32. lazy val logger: SlickLogger

    Attributes
    protected[this]
    Definition Classes
    Logging
  33. val name: String

    The unique name of the phase

    The unique name of the phase

    Definition Classes
    FuseComprehensionsPhase
  34. def narrowStructure(n: Node): Node

  35. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  36. final def notify(): Unit

    Definition Classes
    AnyRef
  37. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  38. def select(selects: List[Symbol], base: Node): Vector[Node]

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

    Definition Classes
    AnyRef
  40. def toString(): String

    Definition Classes
    Function1 → AnyRef → Any
  41. final def wait(): Unit

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

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  44. def [B](y: B): (FuseComprehensions, B)

    Implicit information
    This member is added by an implicit conversion from FuseComprehensions to ArrowAssoc[FuseComprehensions] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from Phase

Inherited from Logging

Inherited from (CompilerState) ⇒ CompilerState

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from FuseComprehensions to any2stringadd[FuseComprehensions]

Inherited by implicit conversion StringFormat from FuseComprehensions to StringFormat[FuseComprehensions]

Inherited by implicit conversion Ensuring from FuseComprehensions to Ensuring[FuseComprehensions]

Inherited by implicit conversion ArrowAssoc from FuseComprehensions to ArrowAssoc[FuseComprehensions]

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