org.apache.flink.table.types.inference

Interface TypeStrategy

All Known Implementing Classes:

CommonTypeStrategy, ExplicitTypeStrategy, FirstTypeStrategy, MappingTypeStrategy, MatchFamilyTypeStrategy, MissingTypeStrategy, NullableTypeStrategy, UseArgumentTypeStrategy, VaryingStringTypeStrategy

@PublicEvolving
public interface TypeStrategy

Strategy for inferring the data type of a function call. The inferred type might describe the final result or an intermediate result (accumulation type) of a function.

Note: Implementations should implement Object.hashCode() and Object.equals(Object).

See Also:

TypeStrategies

Method Summary

Modifier and Type	Method and 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.