TypeStrategy (Flink : Table : Common 2.1.0 API)

All Known Subinterfaces:

StateTypeStrategy

All Known Implementing Classes:

ArgumentMappingTypeStrategy, ArrayAppendPrependTypeStrategy, ArrayElementTypeStrategy, CollectTypeStrategy, CommonTypeStrategy, ExplicitTypeStrategy, FirstTypeStrategy, ForceNullableTypeStrategy, HiveAggDecimalPlusTypeStrategy, ItemAtTypeStrategy, MappingTypeStrategy, MatchFamilyTypeStrategy, MissingTypeStrategy, NullableIfArgsTypeStrategy, RowtimeTypeStrategy, ToTimestampLtzTypeStrategy, VaryingStringTypeStrategy
```
@PublicEvolving
public interface TypeStrategy
```
Strategy for inferring a function call's result data type.
Note: Implementations should implement Object.hashCode() and Object.equals(Object).

See Also:

TypeStrategies

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  Optional<DataType> inferType(CallContext callContext)
  Infers a type from the given function call.

- Method Detail
  - inferType
```
Optional<DataType> inferType(CallContext callContext)
```
    Infers a type from the given function call.