160 | persisting object with long[][] arrays of arrayHi, I have an object I am trying to persist (java) - It has several fields of type long[][]. It is taking very long to persist and sometimes never finish - it hangs on getTransaction().commit ... static final long serialVersionUID = 1L; public @Id String id; @OneToMany(fetch |
143 | Lazy loading does not work - crud takes long.**.Datapoint,com.**.Advalm); long t0 = System.currentTimeMillis(); projects = service ... , generator = "PROJECT_SEQUENCE") private Long id; .. .. @OneToMany(cascade |
143 | Schema migration - long to StringHi, I need to change field type in our model from long to String. After changing filed type in our model and repairing database with doctor, most of our entities is gone. Doctor puts some errors ... ? lwalkowski Lukasz Walkowski Changing a field from long to String should not require any specific action |
142 | First persist takes long time" /> Could you explain the long time for first persist? btc_es BTC EmbeddedSystems Some operations |
142 | Explorer shows Long id, but should be IntegerHi! I have seen a strange behavior of ObjectDB Explorer: it shows @Id as being Long, not Integer as it's normally declared in the java class. This happens now with all entities in all 3 databases used for one project. If I open one of the entities in the explorer, then I click on it's id (in |
142 | EntityManager.refresh takes a long timeEntityManager.refresh takes a long time for entity object Person in this code: logger.log(Level.INFO, "begin select for person " + new Date().toString()); TypedQuery<Person> personQuery = em.createQuery("SELECT m FROM Person m", Person.class); List<Person |
51 | Database Schema Evolution to any numeric type. In this context numeric types are: byte, short, char, int, long, float, double, Byte, Short, Character, Integer, Long, Float, Double, BigInteger, BigDecimal and enum values ... long as the elements are convertible (e.g. from int[] to ArrayList<Long>). From any object to any |
45 | JPA Persistable Types: boolean, byte, short, char, int, long, float and double. Equivalent wrapper classes from package java.lang: Boolean, Byte, Short, Character, Integer, Long, Float and Double. java.math.BigInteger ... ) collection and map types are supported, as long as their values (i.e. elements in collections and arrays |
21 | JPA Primary Key key cannot be modified. It represents the entity object as long as it exists in the database. As ... 64 bit number (long) that is set automatically by ObjectDB for every new entity object ... key field: @Entity public class Project { @Id @GeneratedValue long id; // still set |
20 | JPA Metamodel API ID attribute - including inherited: SingularAttribute<MyEntity,Long> id1 = entityType.getId(Long.class); // Gets a single ID attribute - excluding inherited: SingularAttribute<MyEntity,Long> id2 = entityType.getDeclaredId(Long.class); // Checks if the type has a version |
