Package org.hibernate.annotations

Enum UuidGenerator.Style

java.lang.Object

java.lang.Enum<UuidGenerator.Style>

org.hibernate.annotations.UuidGenerator.Style

All Implemented Interfaces:

Serializable, Comparable<UuidGenerator.Style>

Enclosing class:

UuidGenerator

public static enum UuidGenerator.Style
extends Enum<UuidGenerator.Style>

Represents a kind of UUID, that is, what RFC 4122 calls a "version".

Enum Constant Summary

Enum Constants

Enum Constant	Description
AUTO	Defaults to RANDOM.
RANDOM	Use UUID.randomUUID() to generate UUIDs, producing a value compatible with RFC 4122 version 4.
TIME	Use a time-based generation strategy consistent with RFC 4122 version 1, but with IP address instead of MAC address.

Method Summary

Modifier and Type	Method	Description
static UuidGenerator.Style	valueOf(String name)	Returns the enum constant of this type with the specified name.
static UuidGenerator.Style[]	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

AUTO

public static final UuidGenerator.Style AUTO

Defaults to RANDOM.

RANDOM

public static final UuidGenerator.Style RANDOM

Use UUID.randomUUID() to generate UUIDs, producing a value compatible with RFC 4122 version 4.

TIME

public static final UuidGenerator.Style TIME

Use a time-based generation strategy consistent with RFC 4122 version 1, but with IP address instead of MAC address.

Implementation Note:

Can be a bottleneck, since synchronization is used when incrementing an internal counter as part of the algorithm.

Method Detail

values

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

Returns:

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

valueOf

public static UuidGenerator.Style 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