org.apache.flink.table.types.inference.strategies

Class ForceNullableTypeStrategy

java.lang.Object

org.apache.flink.table.types.inference.strategies.ForceNullableTypeStrategy

All Implemented Interfaces:

TypeStrategy

@Internal
public class ForceNullableTypeStrategy
extends Object
implements TypeStrategy

Forces a given type strategy to be nullable.

Constructor Summary

Constructors

Constructor and Description
ForceNullableTypeStrategy(TypeStrategy initialStrategy)

Method Summary

Modifier and Type	Method and Description
Optional<DataType>	inferType(CallContext callContext) Infers a type from the given function call.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ForceNullableTypeStrategy

public ForceNullableTypeStrategy(TypeStrategy initialStrategy)

Method Detail

inferType

public Optional<DataType> inferType(CallContext callContext)

Description copied from interface: TypeStrategy

Infers a type from the given function call.

Specified by:

inferType in interface TypeStrategy