ArgumentMappingTypeStrategy (Flink : Table : Common 2.0-preview1 API)

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 Description
  
  ArgumentMappingTypeStrategy(int pos, Function<DataType,Optional<DataType>> mapper)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method 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