org.hibernate.annotations

Annotation Type ManyToAny

@Target(value={METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface ManyToAny

Defined a ToMany association pointing to different entity types. Matching the according entity type is doe through a metadata discriminator column This kind of mapping should be only marginal.

Author:

Emmanuel Bernard

Required Element Summary

Required Elements

Modifier and Type	Required Element and Description
Column	metaColumn Metadata dicriminator column description, This column will hold the meta value corresponding to the targeted entity.

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
FetchType	fetch Defines whether the value of the field or property should be lazily loaded or must be eagerly fetched.
String	metaDef Metadata definition used.

Element Detail

metaColumn

public abstract Column metaColumn

Metadata dicriminator column description, This column will hold the meta value corresponding to the targeted entity.

metaDef

public abstract String metaDef

Metadata definition used. If defined, should point to a @AnyMetaDef name If not defined, the local (ie in the same field or property) @AnyMetaDef is used

Default:

""

fetch

public abstract FetchType fetch

Defines whether the value of the field or property should be lazily loaded or must be eagerly fetched. The EAGER strategy is a requirement on the persistence provider runtime that the value must be eagerly fetched. The LAZY strategy is applied when bytecode enhancement is used. If not specified, defaults to EAGER.

Default:

javax.persistence.FetchType.EAGER