org.datanucleus.metadata

Enum DiscriminatorStrategy

java.lang.Object

java.lang.Enum<DiscriminatorStrategy>

org.datanucleus.metadata.DiscriminatorStrategy

All Implemented Interfaces:

Serializable, Comparable<DiscriminatorStrategy>

public enum DiscriminatorStrategy
extends Enum<DiscriminatorStrategy>

Representation of the values for discriminator "strategy".

• VALUE_MAP where you define a value for each class, with no fallback default.
• CLASS_NAME where the class name is used as the discriminator value
• VALUE_MAP_ENTITY_NAME where you define a value for each class, but the fallback is the entity name when no value is provided.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CLASS_NAME
NONE
VALUE_MAP
VALUE_MAP_ENTITY_NAME

Method Summary

Modifier and Type	Method and Description
static DiscriminatorStrategy	getDiscriminatorStrategy(String value) Accessor for the strategy
String	toString()
static DiscriminatorStrategy	valueOf(String name) Returns the enum constant of this type with the specified name.
static DiscriminatorStrategy[]	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, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NONE

public static final DiscriminatorStrategy NONE

VALUE_MAP

public static final DiscriminatorStrategy VALUE_MAP

CLASS_NAME

public static final DiscriminatorStrategy CLASS_NAME

VALUE_MAP_ENTITY_NAME

public static final DiscriminatorStrategy VALUE_MAP_ENTITY_NAME

Method Detail

values

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

Returns:

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

valueOf

public static DiscriminatorStrategy 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

toString

public String toString()

Overrides:

toString in class Enum<DiscriminatorStrategy>

getDiscriminatorStrategy

public static DiscriminatorStrategy getDiscriminatorStrategy(String value)

Accessor for the strategy

Parameters:

value - The string form

Returns:

The strategy