io.r2dbc.spi

Enum Nullability

java.lang.Object

java.lang.Enum<Nullability>

io.r2dbc.spi.Nullability

All Implemented Interfaces:

Serializable, Comparable<Nullability>

public enum Nullability
extends Enum<Nullability>

Constants indicating nullability of column values.

Enum Constant Summary

Enum Constants

Enum Constant and Description
NON_NULL Indicating that a column does not allow NULL values.
NULLABLE Indicating that a column does allow NULL values.
UNKNOWN Indicating that the nullability of a column's values is unknown.

Method Summary

Modifier and Type	Method and Description
static Nullability	valueOf(String name) Returns the enum constant of this type with the specified name.
static Nullability[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NULLABLE

public static final Nullability NULLABLE

Indicating that a column does allow NULL values.

NON_NULL

public static final Nullability NON_NULL

Indicating that a column does not allow NULL values.

UNKNOWN

public static final Nullability UNKNOWN

Indicating that the nullability of a column's values is unknown.

Method Detail

values

public static Nullability[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Nullability c : Nullability.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Nullability valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null