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

Class NullableIfArgsTypeStrategy

java.lang.Object

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

All Implemented Interfaces:

TypeStrategy

@Internal
public final class NullableIfArgsTypeStrategy
extends Object
implements TypeStrategy

A type strategy that can be used to make a result type nullable if any or all of the selected input arguments are nullable. Otherwise the type will be not null.

Constructor Summary

Constructors

Constructor and Description
NullableIfArgsTypeStrategy(ConstantArgumentCount includedArguments, TypeStrategy initialStrategy, boolean nullableIfAllArgsNullable)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
int	hashCode()
Optional<DataType>	inferType(CallContext callContext) Infers a type from the given function call.

Methods inherited from class java.lang.Object

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

Constructor Detail

NullableIfArgsTypeStrategy

public NullableIfArgsTypeStrategy(ConstantArgumentCount includedArguments,
                                  TypeStrategy initialStrategy,
                                  boolean nullableIfAllArgsNullable)

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

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object