Package org.apache.calcite.runtime.variant

Class VariantSqlNull

java.lang.Object

org.apache.calcite.runtime.variant.VariantValue

org.apache.calcite.runtime.variant.VariantSqlValue

org.apache.calcite.runtime.variant.VariantSqlNull

public class VariantSqlNull
extends VariantSqlValue

A VARIANT value that contains a NULL runtime value.

Method Summary

Modifier and Type	Method	Description
@Nullable Object	cast(RuntimeTypeInformation type)	Cast this value to the specified type.
boolean	equals(@Nullable Object o)
int	hashCode()
@Nullable Object	item(Object index)
String	toString()

Methods inherited from class org.apache.calcite.runtime.variant.VariantSqlValue

create, getTypeString

Methods inherited from class org.apache.calcite.runtime.variant.VariantValue

getTypeString

Methods inherited from class java.lang.Object

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

Method Details

item

public @Nullable Object item(Object index)

Specified by:

item in class VariantValue

cast

public @Nullable Object cast(RuntimeTypeInformation type)

Description copied from class: VariantValue

Cast this value to the specified type. Currently, the rule is: if the value has the specified type, the value field is returned, otherwise a SQL NULL is returned.

Specified by:

cast in class VariantValue

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(@Nullable Object o)

Overrides:

equals in class Object