Package javax.persistence.metamodel

Interface Metamodel

  • public interface Metamodel
    Provides access to the metamodel of persistent entities in the persistence unit.
    Since:
    2.0

    • Method Detail

      • entity

        <X> EntityType<X> entity​(java.lang.Class<X> cls)
        Return the metamodel entity type representing the entity.
        Parameters:
        cls - the type of the represented entity
        Returns:
        the metamodel entity type
        Throws:
        java.lang.IllegalArgumentException - if not an entity

      • managedType

        <X> ManagedType<X> managedType​(java.lang.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
        Returns:
        the metamodel managed type
        Throws:
        java.lang.IllegalArgumentException - if not a managed class

      • embeddable

        <X> EmbeddableType<X> embeddable​(java.lang.Class<X> cls)
        Return the metamodel embeddable type representing the embeddable class.
        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<EntityType<?>> getEntities()
        Return the metamodel entity types.
        Returns:
        the metamodel entity types

      • getEmbeddables

        java.util.Set<EmbeddableType<?>> getEmbeddables()
        Return the metamodel embeddable types. Returns empty set if there are no embeddable types.
        Returns:
        the metamodel embeddable types