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

类 NullableIfArgsTypeStrategy

java.lang.Object

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

所有已实现的接口:

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 of the selected input arguments is nullable. Otherwise the type will be not null.

构造器概要

构造器

构造器和说明
NullableIfArgsTypeStrategy(ConstantArgumentCount includedArguments, TypeStrategy initialStrategy)

方法概要

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

从类继承的方法 java.lang.Object

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

构造器详细资料

NullableIfArgsTypeStrategy

public NullableIfArgsTypeStrategy(ConstantArgumentCount includedArguments,
                                  TypeStrategy initialStrategy)

方法详细资料

inferType

public Optional<DataType> inferType(CallContext callContext)

从接口复制的说明: TypeStrategy

Infers a type from the given function call.

指定者:

inferType 在接口中 TypeStrategy

equals

public boolean equals(Object o)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object