cardsite.blogg.se

Hibernate: insert into VEHICLE (USER_ID, VEHICLE_NAME) values (?, ?) Log4j:WARN Please initialize the log4j system properly. Log4j:WARN No appenders could be found for logger (.Version). Session.beginTransaction() //create the transaction object Session session = sessionFactory.openSession() //create the session object SessionFactory sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory() //create the session factory object tUserName(“Dinesh Rajput”) //set user property tVehicleName(“AUDI Car”) //set second car Audi Vehicle vehicle2 = new Vehicle() //create second vehicle entity Vehicle vehicle = new Vehicle() //create a vehicle entity UserDetails user = new UserDetails() //create an user entity Now we look the following Example related to the One to Many mapping. The value of each identifier used with the dot notation is the name of the respective embedded field or property. The dot (“.”) notation syntax must be used in the mappedBy element to indicate the relationship attribute within the embedded attribute. If the relationship is bidirectional, the non-owning OneToMany entity side must use the mappedBy element of the OneToMany annotation to specify the relationship field or property of the embeddable field or property on the owning side of the relationship. The ManyToOne annotation may be used within an embeddable class to specify a relationship from the embeddable class to an entity class. If the relationship is bidirectional, the non-owning OneToMany entity side must use the mappedBy element to specify the relationship field or property of the entity that is the owner of the relationship. It is not normally necessary to specify the target entity explicitly since it can usually be inferred from the type of the object being referenced. Fields (including property get methods)Defines a single-valued association to another entity class that has many-to-one multiplicity.