CodeGeneratorWithInterpretedFallback Generators¶

CodeGeneratorWithInterpretedFallback is an abstraction of codegen object generators that can create OUT objects for codegen and interpreted evaluation paths.

CodeGeneratorWithInterpretedFallback is a Scala type constructor (generic class) with IN and OUT type aliases.

CodeGeneratorWithInterpretedFallback[IN, OUT]

Contract¶

createCodeGeneratedObject¶

createCodeGeneratedObject(
  in: IN): OUT

See:

• MutableProjection
• UnsafeProjection
• RowOrdering

Used when:

• CodeGeneratorWithInterpretedFallback is requested to create an OUT object

createInterpretedObject¶

createInterpretedObject(
  in: IN): OUT

See:

• MutableProjection
• UnsafeProjection
• RowOrdering

Used when:

• CodeGeneratorWithInterpretedFallback is requested to create an OUT object (after createCodeGeneratedObject failed with a non-fatal exception)

Implementations¶

• MutableProjection
• Predicate
• RowOrdering
• SafeProjection
• UnsafeProjection

Creating OUT Object¶

createObject(
  in: IN): OUT

createObject createCodeGeneratedObject.

In case of a non-fatal exception, createObject prints out the following WARN message to the logs and createInterpretedObject.

Expr codegen error and falling back to interpreter mode

createObject is used when:

• MutableProjection utility is used to create a MutableProjection
• Predicate utility is used to create a BasePredicate
• RowOrdering utility is used to create a BaseOrdering
• SafeProjection utility is used to create a Projection
• UnsafeProjection utility is used to create an UnsafeProjection