org.apache.flink.table.types.inference.strategies

Class ArgumentMappingTypeStrategy

java.lang.Object

org.apache.flink.table.types.inference.strategies.ArgumentMappingTypeStrategy

All Implemented Interfaces:

TypeStrategy

@Internal
public final class ArgumentMappingTypeStrategy
extends Object
implements TypeStrategy

Type strategy that returns the n-th input argument, mapping it with the provided function.

Constructor Summary

Constructors

Constructor and Description
ArgumentMappingTypeStrategy(int pos, Function<DataType,Optional<DataType>> mapper)

Method Summary

Modifier and Type	Method and Description
Optional<DataType>	inferType(CallContext callContext) Infers a type from the given function call.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ArgumentMappingTypeStrategy

public ArgumentMappingTypeStrategy(int pos,
                                   Function<DataType,Optional<DataType>> mapper)

Method Detail

inferType

public Optional<DataType> inferType(CallContext callContext)

Description copied from interface: TypeStrategy

Infers a type from the given function call.

Specified by:

inferType in interface TypeStrategy