JPA Interface

Metamodel

Provides access to the metamodel of persistent entities in the persistence unit.
Since:
JPA 2.0

Public Methods

EmbeddableType<X> embeddable(Class<X> cls)
Return the metamodel embeddable type representing the embeddable class.
Parameters:
cls - the type of the represented embeddable class
Return:
the metamodel embeddable type
Throws:
IllegalArgumentException - if not an embeddable class
Since:
JPA 2.0
EntityType<X> entity(Class<X> cls)
Return the metamodel entity type representing the entity.
Parameters:
cls - the type of the represented entity
Return:
the metamodel entity type
Throws:
IllegalArgumentException - if not an entity
Since:
JPA 2.0
Set<EmbeddableType<?>> getEmbeddables()
Return the metamodel embeddable types.
Returns empty set if there are no embeddable types.
Return:
the metamodel embeddable types
Since:
JPA 2.0
Set<EntityType<?>> getEntities()
Return the metamodel entity types.
Return:
the metamodel entity types
Since:
JPA 2.0
Set<ManagedType<?>> getManagedTypes()
Return the metamodel managed types.
Return:
the metamodel managed types
Since:
JPA 2.0
ManagedType<X> managedType(Class<X> cls)
Return the metamodel managed type representing the entity, mapped superclass, or embeddable class.
Parameters:
cls - the type of the represented managed class
Return:
the metamodel managed type
Throws:
IllegalArgumentException - if not a managed class
Since:
JPA 2.0