9 | Empty temporary dat files in the temp folder have a connection (open EntityManagerFactory). For each user action we create an EntityManager ... .Entity; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory ... ) { EntityManagerFactory emf = Persistence.createEntityManagerFactory(db + ";drop |
8 | General Performance Issues Illustrated with a Specific MethodGeneral Performance Issues Illustrated with a Specific Method |
8 | ObjectDB CRUD ExamplesWould this be correct? public List<Foo> read() { EntityManagerFactory emf ... ? public List<Foo> read() { EntityManagerFactory emf = Persistence.createEntityManagerFactory ... . It would be more efficient to avoid creating and closing EntityManagerFactory instances |
8 | Guessbook tutorial: Java EE 6 JPA Tutorial - Maven Project._PersistenceException: Attempt to obtain a connection from a closed EntityManagerFactory at com ... EntityManagerFactory at com.objectdb.o.MSG.d(MSG.java:61) at com.objectdb.o.OMF.ah(OMF.java:661) at com.objectdb ... ._PersistenceException: Attempt to obtain a connection from a closed EntityManagerFactory at com.objectdb.o |
8 | Unable to persist TreeMap; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import ... ) { EntityManagerFactory emf = Persistence.createEntityManagerFactory( "objectdb:D:\\eclipse ... ; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence |
8 | Schema Update: class hierarchy change.EntityManagerFactory; import javax.persistence.Persistence; public final class Test { public static void main(String[] args) { System.out.println("start"); EntityManagerFactory emf = Persistence ... .EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence |
8 | Left join fetch behaviour doesn't retrieve children?.persistence.EntityManagerFactory; import javax.persistence.Id; import javax.persistence.ManyToMany ... ObjectDbTest { public static void main(String[] args) { EntityManagerFactory emf ... { public static void main(String[] args) { EntityManagerFactory emf = Persistence |
1 | Issues with JDO Casting & Full Qualified Names; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; public final class F328 { public static void main(String[] args) { EntityManagerFactory emf = Persistence ... .Entity; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import |
1 | Best practise loading big data the database (i.e. the EntityManagerFactory). If you need an advice regarding tuning cache sizes ... .persistence.EntityManagerFactory; import javax.persistence.FetchType; import javax.persistence.Id ... .exists()) { f.delete(); } EntityManagerFactory emf = Persistence |
1 | Weird issue with variable naming; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import ... ) { EntityManagerFactory emf = Persistence.createEntityManagerFactory("objectdb:$objectdb/db/test ... javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; import javax |
