Top Description Inners Methods

org.hibernate.annotations

public @Interface UuidGenerator

Annotations

extends Annotation

@IdGeneratorType:UuidGenerator
@ValueGenerationType
generatedBy:UuidGenerator
@Retention:RUNTIME
@Target:FIELD, METHOD

Imports

java.lang.annotation.Retention, .RetentionPolicy, .Target, java.util.UUID

Specifies that an entity identifier is generated as an IETF RFC 4122 UUID.

The type of the identifier attribute may be UUID or String.

Author: Steve Ebersole
Since: 6.0

Nested and Inner Type Summary

Modifier and Type	Class and Description
public static enum	UuidGenerator.Style Represents a kind of UUID, that is, what RFC 4122 calls a "version".

Method Summary

Modifier and Type	Method and Description
public UuidGenerator.Style	style() Specifies which style of UUID generation should be used.

Inherited from java.lang.annotation.Annotation:: annotationType equals hashCode toString

Method Detail

style	back to summary
public UuidGenerator.Style style() Specifies which style of UUID generation should be used.

org.hibernate.annotations back to summary

public final Enum UuidGenerator.Style

Class Inheritance

extends Enum<UuidGenerator.Style>

java.lang.Object
java.lang.Enum
org.hibernate.annotations.UuidGenerator.Style

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

Field Summary

Modifier and Type	Field and Description
public static final UuidGenerator.Style	AUTO Defaults to `RANDOM`.
public static final UuidGenerator.Style	RANDOM Use `UUID#randomUUID()` to generate UUIDs, producing a value compatible with RFC 4122 version 4.
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.

Constructor Summary

Access	Constructor and Description
private	Style()

Method Summary

Modifier and Type	Method and Description
public static UuidGenerator.Style	valueOf(String name)
public static UuidGenerator.Style[]	values()

Inherited from java.lang.Enum:: clone compareTo describeConstable equals finalize getDeclaringClass hashCode name ordinal toString valueOf

Field Detail

AUTO	back to summary
public static final UuidGenerator.Style AUTO Defaults to `RANDOM`.

RANDOM	back to summary
public static final UuidGenerator.Style RANDOM Use `UUID#randomUUID()` to generate UUIDs, producing a value compatible with RFC 4122 version 4.

TIME	back to summary
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.

Constructor Detail

Style	back to summary
private Style()

Method Detail

valueOf	back to summary
public static UuidGenerator.Style valueOf(String name)

values	back to summary
public static UuidGenerator.Style[] values()