Packages

class SelectElaborator extends Phase

A compiler phase which translates Select nodes to be directly interpretable.

This phase,

1. types bindings according to the schema: i) untyped enums are validated and typed according to their declared type. ii) String and Int bindings are translated to ID bindings where appropriate. iii) default values are supplied for missing arguments. iv) arguments are permuted into the order declared in the schema.

2. eliminates Select arguments by delegating to a model-specific PartialFunction which is responsible for translating Select nodes into a form which is directly interpretable, replacing them with a Filter or Unique node with a Predicate which is parameterized by the arguments, eg.

Select("character", List(IDBinding("id", "1000")), child) might be translated to, Filter(FieldEquals("id", "1000"), child)

3. types narrowing coercions by resolving the target type against the schema.

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Instance Constructors

  1. new SelectElaborator(mapping: Map[TypeRef, PartialFunction[Select, Result[Query]]])

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 clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
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    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. def elaborateArgs(tpe: Type, fieldName: String, args: List[Binding]): Result[List[Binding]]
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  9. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  10. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  12. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  13. final def ne(arg0: AnyRef): Boolean
    Definition Classes
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  14. final def notify(): Unit
    Definition Classes
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    @native()
  15. final def notifyAll(): Unit
    Definition Classes
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    @native()
  16. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
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  17. def toString(): String
    Definition Classes
    AnyRef → Any
  18. def transform(query: Query, env: Env, schema: Schema, tpe: Type): Result[Query]

    Transform the supplied query algebra term query with expected type tpe.

    Transform the supplied query algebra term query with expected type tpe.

    Definition Classes
    SelectElaborator → Phase
  19. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  20. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  21. final def wait(arg0: Long): Unit
    Definition Classes
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    @throws(classOf[java.lang.InterruptedException]) @native()

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