org.apache.flink.table.types.inference

接口 TypeStrategy

所有已知实现类:

CommonTypeStrategy, ExplicitTypeStrategy, FirstTypeStrategy, ForceNullableTypeStrategy, MappingTypeStrategy, MatchFamilyTypeStrategy, MissingTypeStrategy, NullableIfArgsTypeStrategy, 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).

另请参阅:

TypeStrategies

方法概要

限定符和类型	方法和说明
Optional<DataType>	inferType(CallContext callContext) Infers a type from the given function call.

方法详细资料

inferType

Optional<DataType> inferType(CallContext callContext)

Infers a type from the given function call.