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

GenerateUnsafeProjection

object GenerateUnsafeProjection extends CodeGenerator[Seq[Expression], UnsafeProjection]

Generates a Projection that returns an UnsafeRow.

It generates the code for all the expressions, compute the total length for all the columns (can be accessed via variables), and then copy the data into a scratch buffer space in the form of UnsafeRow (the scratch buffer will grow as needed).

Note: The returned UnsafeRow will be pointed to a scratch buffer inside the projection.

Linear Supertypes
CodeGenerator[Seq[Expression], UnsafeProjection], Logging, AnyRef, Any
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  1. GenerateUnsafeProjection
  2. CodeGenerator
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Value Members

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  7. def bind(in: Seq[Expression], inputSchema: Seq[Attribute]): Seq[Expression]

    Binds an input expression to a given input schema

    Binds an input expression to a given input schema

    Attributes
    protected
    Definition Classes
    GenerateUnsafeProjection → CodeGenerator

  8. def canSupport(dataType: DataType): Boolean

    Returns true iff we support this data type.

  9. def canonicalize(in: Seq[Expression]): Seq[Expression]

    Canonicalizes an input expression.

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

    Attributes
    protected
    Definition Classes
    GenerateUnsafeProjection → CodeGenerator

  10. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  11. def compile(code: String): GeneratedClass

    Compile the Java source code into a Java class, using Janino.

    Compile the Java source code into a Java class, using Janino.

    Attributes
    protected
    Definition Classes
    CodeGenerator

  12. def create(expressions: Seq[Expression]): UnsafeProjection

    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
    Definition Classes
    GenerateUnsafeProjection → CodeGenerator

  13. def createCode(ctx: CodeGenContext, expressions: Seq[Expression], useSubexprElimination: Boolean = false): GeneratedExpressionCode

  14. def declareAddedFunctions(ctx: CodeGenContext): String

    Attributes
    protected
    Definition Classes
    CodeGenerator

  15. def declareMutableStates(ctx: CodeGenContext): String

    Attributes
    protected
    Definition Classes
    CodeGenerator

  16. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  17. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  18. val exprType: String

    Attributes
    protected
    Definition Classes
    CodeGenerator

  19. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  20. def generate(expressions: Seq[Expression], subexpressionEliminationEnabled: Boolean): UnsafeProjection

  21. def generate(expressions: Seq[Expression]): UnsafeProjection

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

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

    Definition Classes
    CodeGenerator

  22. def generate(expressions: Seq[Expression], inputSchema: Seq[Attribute]): UnsafeProjection

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

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

    Definition Classes
    CodeGenerator

  23. val genericMutableRowType: String

    Attributes
    protected
    Definition Classes
    CodeGenerator

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

    Definition Classes
    AnyRef → Any

  25. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  26. def initMutableStates(ctx: CodeGenContext): String

    Attributes
    protected
    Definition Classes
    CodeGenerator

  27. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  28. def isTraceEnabled(): Boolean

    Attributes
    protected
    Definition Classes
    Logging

  29. def log: Logger

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

  36. def logName: String

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

  41. val mutableRowType: String

    Attributes
    protected
    Definition Classes
    CodeGenerator

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

    Definition Classes
    AnyRef

  43. def newCodeGenContext(): CodeGenContext

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

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

    Definition Classes
    CodeGenerator

  44. final def notify(): Unit

    Definition Classes
    AnyRef

  45. final def notifyAll(): Unit

    Definition Classes
    AnyRef

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

    Definition Classes
    AnyRef

  47. def toString(): String

    Definition Classes
    AnyRef → Any

  48. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  49. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from CodeGenerator[Seq[Expression], UnsafeProjection]

Inherited from Logging

Inherited from AnyRef

Inherited from Any

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