javax.persistence.metamodel
Interface Metamodel

public interface Metamodel

Provides access to the metamodel of persistent entities in the persistence unit.

Method Summary

<X> Embeddable<X>	embeddable(java.lang.Class<X> cls) Return the metamodel embeddable type representing the embeddable type.
<X> Entity<X>	entity(java.lang.Class<X> cls) Return the metamodel entity representing the entity type.
java.util.Set<Embeddable<?>>	getEmbeddables() Return the metamodel embeddable types.
java.util.Set<Entity<?>>	getEntities() Return the metamodel entity types.
java.util.Set<ManagedType<?>>	getManagedTypes() Return the metamodel managed types.
<X> ManagedType<X>	type(java.lang.Class<X> cls) Return the metamodel managed type representing the entity, mapped superclass, or embeddable type.

Method Detail

entity

<X> Entity<X> entity(java.lang.Class<X> cls)

Return the metamodel entity representing the entity type.

Parameters:

cls - the type of the represented entity

Returns:

the metamodel entity

Throws:

java.lang.IllegalArgumentException - if not an entity

type

<X> ManagedType<X> type(java.lang.Class<X> cls)

Return the metamodel managed type representing the entity, mapped superclass, or embeddable type.

Parameters:

cls - the type of the represented managed class

Returns:

the metamodel managed type

Throws:

java.lang.IllegalArgumentException - if not a managed class

embeddable

<X> Embeddable<X> embeddable(java.lang.Class<X> cls)

Return the metamodel embeddable type representing the embeddable type.

Parameters:

cls - the type of the represented embeddable class

Returns:

the metamodel embeddable type

Throws:

java.lang.IllegalArgumentException - if not an embeddable class

getManagedTypes

java.util.Set<ManagedType<?>> getManagedTypes()

Return the metamodel managed types.

Returns:

the metamodel managed types

getEntities

java.util.Set<Entity<?>> getEntities()

Return the metamodel entity types.

Returns:

the metamodel entity types

getEmbeddables

java.util.Set<Embeddable<?>> getEmbeddables()

Return the metamodel embeddable types.

Returns:

the metamodel embeddable types