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Problem with distinct select, order by and equivalent alias/attribute path

.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence ... ; EntityManagerFactory emf =            

EntityManager refresh problem

.EntityManagerFactory; import javax.persistence.Persistence; import javax.persistence ... ; EntityManagerFactory emf = Persistence.createEntityManagerFactory(odbFile.getAbsolutePath());   

Cast exception?

EntityManagerFactory createEntityManagerFactory(String paramString, Map paramMap) /* */ { /* 73 */ EntityManagerFactory localEntityManagerFactory = null; /* 74 */ PersistenceProviderResolver

Need help to make this test work and define proper annotations for entities Lists

javax.persistence.EntityManagerFactory; import javax.persistence.GeneratedValue; import javax ... ;         EntityManagerFactory emf;     

Storing objects problem

;EntityManagerFactory emf =              Persistence ... ; EntityManagerFactory emf =             

Does ObjectDB support lazy loading?

"; EntityManagerFactory emf = Persistence.createEntityManagerFactory(path ... ";     EntityManagerFactory emf = Persistence.createEntityManagerFactory(path);  

Join performance in Objectdb

; EntityManagerFactory emf =             Persistence ... ;   EntityManagerFactory emf =           

Database(*.odb) file size on disk

.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence ... static void main(String[] args) {   EntityManagerFactory emf;   emf = Persistence

[ObjectDB 2.2.6_02] Unexpected exception (Error 990) at com.objectdb.o.OBC.aJ(OBC.java:961)

.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence ... , null, ex); } } private EntityManagerFactory emf;

Close() Method of EMF throwing "PersistenceException: Connection is closed" on first attempt to close.

were attempting to close the EntityManagerFactory associated with these ODBs by calling the EMF’s close ... ">EntityManagerFactory was already closed when an attempt to close it happened. More information