T
- type for which TypeInformation
is created@Public public abstract class TypeInfoFactory<T> extends Object
TypeInformation
into the Flink type system. The factory is
called during the type extraction phase if the corresponding type has been annotated with
TypeInfo
. In a hierarchy of types the closest factory will be chosen while traversing
upwards, however, a globally registered factory has highest precedence
(see TypeExtractor.registerFactory(Type, Class)
).Constructor and Description |
---|
TypeInfoFactory() |
Modifier and Type | Method and Description |
---|---|
abstract TypeInformation<T> |
createTypeInfo(Type t,
Map<String,TypeInformation<?>> genericParameters)
Creates type information for the type the factory is targeted for.
|
public abstract TypeInformation<T> createTypeInfo(Type t, Map<String,TypeInformation<?>> genericParameters)
t
- the exact type the type information is created for; might also be a subclass of <T>genericParameters
- mapping of the type's generic type parameters to type information
extracted with Flink's type extraction facilities; null values
indicate that type information could not be extracted for this parameterCopyright © 2014–2018 The Apache Software Foundation. All rights reserved.