Package org.hibernate.annotations
Annotation Type GenericGenerator
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@Target({PACKAGE,TYPE,METHOD,FIELD}) @Retention(RUNTIME) @Repeatable(GenericGenerators.class) @Deprecated(since="6.5") public @interface GenericGenerator
Deprecated.Use the new approach based onIdGeneratorType
.Defines a named identifier generator, usually an instance of the interfaceIdentifierGenerator
. This allows the use of custom identifier generation strategies beyond those provided by the four basic JPA-defined generation types.A named generator may be associated with an entity class by:
- defining a named generator using this annotation, specifying an
implementation of
IdentifierGenerator
usingtype()
, then - annotating the identifier property of the entity with the JPA-defined
@GeneratedValue
annotation, and - using
generator
to specify thename()
of the generator defined using this annotation.
If neither
type()
notstrategy()
is specified, Hibernate asks the dialect to decide an appropriate strategy. This is equivalent to usingAUTO
in JPA.For example, if we define a generator using:
@GenericGenerator(name = "custom-generator", type = org.hibernate.eg.CustomStringGenerator.class) }
Then we may make use of it by annotating an identifier field as follows:
@Id @GeneratedValue(generator = "custom-generator") private String id;
The disadvantage of this approach is the use of stringly-typed names. An alternative, completely typesafe, way to declare a generator and associate it with an entity is provided by the
@IdGeneratorType
meta-annotation.- See Also:
GeneratedValue
- defining a named generator using this annotation, specifying an
implementation of
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Optional Element Summary
Optional Elements Modifier and Type Optional Element Description Parameter[]
parameters
Deprecated.Parameters to be passed toIdentifierGenerator.configure(org.hibernate.type.Type, java.util.Properties, org.hibernate.service.ServiceRegistry)
when the identifier generator is instantiated.String
strategy
Deprecated.usetype()
for typesafetyClass<? extends Generator>
type
Deprecated.The type of identifier generator, a class implementingGenerator
or, more commonly,IdentifierGenerator
.
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Element Detail
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name
String name
Deprecated.The name of the identifier generator. This is the name that may be specified by thegenerator
member of the@GeneratedValue
annotation.- See Also:
GeneratedValue.generator()
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type
Class<? extends Generator> type
Deprecated.The type of identifier generator, a class implementingGenerator
or, more commonly,IdentifierGenerator
.- Since:
- 6.2
- Default:
- org.hibernate.generator.Generator.class
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strategy
@Deprecated(since="6.2") String strategy
Deprecated.usetype()
for typesafetyThe type of identifier generator, the name of either:- a built-in Hibernate id generator, or
- a custom class implementing
Generator
, or, more commonly,IdentifierGenerator
.
- Default:
- "native"
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-
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parameters
Parameter[] parameters
Deprecated.Parameters to be passed toIdentifierGenerator.configure(org.hibernate.type.Type, java.util.Properties, org.hibernate.service.ServiceRegistry)
when the identifier generator is instantiated.- Default:
- {}
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