org.datanucleus.metadata

Enum NullValue

java.lang.Object

java.lang.Enum<NullValue>

org.datanucleus.metadata.NullValue

All Implemented Interfaces:

Serializable, Comparable<NullValue>

public enum NullValue
extends Enum<NullValue>

Representation of how to handle a null value (in a field).

Enum Constant Summary

Enum Constants

Enum Constant and Description
DEFAULT
EXCEPTION
NONE

Method Summary

Modifier and Type	Method and Description
static NullValue	getNullValue(String value) Obtain a NullValue for the given name by value
static NullValue	valueOf(String name) Returns the enum constant of this type with the specified name.
static NullValue[]	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

EXCEPTION

public static final NullValue EXCEPTION

DEFAULT

public static final NullValue DEFAULT

NONE

public static final NullValue NONE

Method Detail

values

public static NullValue[] 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 (NullValue c : NullValue.values())
    System.out.println(c);

Returns:

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

valueOf

public static NullValue 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

getNullValue

public static NullValue getNullValue(String value)

Obtain a NullValue for the given name by value

Parameters:

value - the name

Returns:

the NullValue found or NullValue.NONE if not found. If value is null, returns NullValue.NONE.