org.apache.flink.table.catalog

Interface DataTypeLookup

@PublicEvolving
public interface DataTypeLookup

Catalog of types that can resolve the name of type to a DataType. This includes both built-in logical types as well as user-defined logical types such as DistinctType and StructuredType.

Method Summary

Modifier and Type	Method and Description
Optional<DataType>	lookupDataType(String name) Lookup a type by a fully or partially defined name.
Optional<DataType>	lookupDataType(UnresolvedIdentifier identifier) Lookup a type by an unresolved identifier.
DataType	resolveRawDataType(Class<?> clazz) Resolves a RAW type for the given class.

Method Detail

lookupDataType

Optional<DataType> lookupDataType(String name)

Lookup a type by a fully or partially defined name.

lookupDataType

Optional<DataType> lookupDataType(UnresolvedIdentifier identifier)

Lookup a type by an unresolved identifier.

resolveRawDataType

DataType resolveRawDataType(Class<?> clazz)

Resolves a RAW type for the given class.

The RawType requires an instantiated serializer. Flink's default RAW serializer is configured during the resolution process.