Class/Object

org.apache.spark.sql.catalyst.expressions.codegen

CodeGenerator

Related Docs: object CodeGenerator | package codegen

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abstract class CodeGenerator[InType <: AnyRef, OutType <: AnyRef] extends Logging

A base class for generators of byte code to perform expression evaluation. Includes a set of helpers for referring to Catalyst types and building trees that perform evaluation of individual expressions.

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Logging, AnyRef, Any
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Instance Constructors

  1. new CodeGenerator()

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Abstract Value Members

  1. abstract def bind(in: InType, inputSchema: Seq[Attribute]): InType

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    Binds an input expression to a given input schema

    Binds an input expression to a given input schema

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    protected
  2. abstract def canonicalize(in: InType): InType

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    Canonicalizes an input expression.

    Canonicalizes an input expression. Used to avoid double caching expressions that differ only cosmetically.

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    protected
  3. abstract def create(in: InType): OutType

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    Generates a class for a given input expression.

    Generates a class for a given input expression. Called when there is not cached code already available.

    Attributes
    protected

Concrete Value Members

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

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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    protected[java.lang]
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    @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  9. def generate(expressions: InType): OutType

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    Generates the requested evaluator given already bound expression(s).

  10. def generate(expressions: InType, inputSchema: Seq[Attribute]): OutType

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    Generates the requested evaluator binding the given expression(s) to the inputSchema.

  11. val genericMutableRowType: String

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

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  13. def hashCode(): Int

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  14. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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  15. final def isInstanceOf[T0]: Boolean

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  16. def isTraceEnabled(): Boolean

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  17. def log: Logger

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  18. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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  19. def logDebug(msg: ⇒ String): Unit

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  20. def logError(msg: ⇒ String, throwable: Throwable): Unit

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  21. def logError(msg: ⇒ String): Unit

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  22. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

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  23. def logInfo(msg: ⇒ String): Unit

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  24. def logName: String

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  25. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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  26. def logTrace(msg: ⇒ String): Unit

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  27. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

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  28. def logWarning(msg: ⇒ String): Unit

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    Logging
  29. final def ne(arg0: AnyRef): Boolean

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  30. def newCodeGenContext(): CodegenContext

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    Create a new codegen context for expression evaluator, used to store those expressions that don't support codegen

  31. final def notify(): Unit

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  32. final def notifyAll(): Unit

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

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  34. def toString(): String

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  35. final def wait(): Unit

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    @throws( ... )
  36. final def wait(arg0: Long, arg1: Int): Unit

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  37. final def wait(arg0: Long): Unit

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Inherited from Logging

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