ObjectDB Database Search

Hi, in the following code you can see an example with EntityManager .refresh(). The example ... -------------------- package example; import java.io.File; import javax.persistence. EntityManager ; import ... ;  public void refreshTest() {         EntityManager

EntityManager with the same unitName. TradesC method needs an User, which is taken from UserDataB ... .pingushare.entity.p1.User#2' belongs to another EntityManager at com.objectdb.o.MSG.d(MSG.java:61 ... this should be a problem if, in the same transaction, an entity is passed into more EntityManagers , but here are 2

an internal pool of connections, and when an EntityManager is closed the underlying socket to the server is returned to the pool and can be reused with another new  EntityManager , as ... ; EntityManager holds is not preserved or reused. Is may be worth reusing these caches as well in some

wherein the EntityManagerFactory objects are being locked during EntityManager object creation.  Please refer ... with ObjectDB wherein the EntityManagerFactory objects are being locked during EntityManager object creation.  This is the normal behavior of ObjectDB. Creation operations of  EntityManager

' belongs to another EntityManager (error 613) 10:29:14,887 ERROR [stderr] (http--10.23.3.98-8081-5 ... to another EntityManager 10:29:15,072 ERROR [stderr] (http--10.23.3.98-8081-5) at com.objectdb.o ... 'pbdmodel.impl.OrgJedinicaImpl#8' belongs to another EntityManager 10:29:15,089 ERROR [stderr] (http--10.23

Hi, I have an issue with the EntityManager . My persistance XML looks like: com.objectdb.jpa.Provider Now in our project we use spring to start everything. If I do: System.out.println(" EntityManager ... , I get: com.objectdb.jdo.PMImpl Whats going on here? Is the entityManager not controlled by

. com.objectdb.o.UserException - Attempt to execute a query using a closed EntityManager at com ... to execute a query using a closed EntityManager at org.apache.myfaces.view.facelets.el ... .o._PersistenceException: Attempt to execute a query using a closed EntityManager at org.apache.el

. EntityManager ; import javax.persistence.TypedQuery; /** * @author Stanislav Jakuschev 28.02.2023 * * EntityManager .find(entityClass, primaryKey) is slow when accessing * non-existent IDs. * * Select queries ... "XId [a=" + a + ", b=" + b + ", c=" + c + "]"; } } public static void clear( EntityManager em) { Instant

Our application manages the Entities itself, so we close the EntityManager after every creating ... and finalize, we found the problem is caused by bad state of EntityManager . After first throwing the InternalException, the EntityManager throws every time when doing merge operation, but it can be closed

an EntityManagerFactory and later  EntityManager on this file, every thing is working fine ... EntityManager . Do you have any idea why does it crash? Thanks, Marcin  marcins Marcin ObjectDB uses ... .  But still the code crashes while creating  EntityManager on this odb file. And the program

Hi I understand we should close the entitymanager after each use, and close the factory ... server mode.  I am just running some test cases and opened up 100 entitymanager via factory ... , at least for a while). The issue with not closing EntityManager and  EntityManagerFactory instances

from Metamodel of a differente EntityManager initialized on a @Controller @RequestMapping event. I ... is it: If I have two moments of initialization of "javax.persistence.metamodel" from EntityManager and these two metamodels come from different EntityManagers . One of these is on a @PostConstruct event

with orphanRemoval set to true. I use a new EntityManager for each transaction (which normally happens in ... entity, the database contains 3 child entities. If I use the same EntityManager for both transactions ... ;      EntityManager em = emf.createEntityManager();     

I am trying to track down some obscure errors with multi-threading.  This involved looking at the EntityManager Metamodel but this caused an ObjectDB exception.  So I reverted ... ;password=admin;drop" EntityManager em = emf.createEntityManager(); em.getTransaction().begin(); MyEntity

In our production environment, entity manager creation, the line below, sometimes take upto few ten's of seconds to create. Is there any reason that is known which may be causing this ? Any suggestions on how this can be addressed ?   EntityManager entityManager = factory.createEntityManager

.PersistenceException: No Persistence provider for EntityManager I'm using the latest ObjectDB 2.6.2.b03 ... only this way (i.e. between building an EntityManagerFactory to building an EntityManager

EntityManager .refresh takes a long time for entity object Person in this code:     logger.log(Level.INFO, "begin select for person " + new Date().toString());     ... level;   Does i understand this term correctly, if try to refresh Entitymanager updates

); //OUTPUT: EMF: org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl@ffa7e1 EntityManager emTemp ... ");         javax.persistence. EntityManager em = emf

.persistence.PersistenceException: No Persistence provider for EntityManager named objectdb

Just started using objectdb (2.3.4). Calling EntityManager .merge for a new (non-managed) object gives EntityNotFoundException. I am perplexed by this. See attached test case. Thanks for your assistance. Full error output is: Exception in thread "main" [ObjectDB 2.3.4] javax.persistence

.Symbol#7' belongs to another EntityManager [Symbol:7] When I change the order in which the test runs (by

I'm trying to use two EntityManager with Spring Boot, but no luck with 'Too many persistable types (10) - exceeds evaluation limit' at second database. My purpose is converting database (converting model entity. same class name but different package). Single application with Spring-Boot 2.1.8

provider for EntityManager named $objectdb/myDB.odb at javax.persistence.Persistence

Creation of several EntityManager is slower

Accessing objects to make them available after EntityManager close?!

. Starting Online Backup The online backup can be started by executing a special query on an EntityManager

entity object from within an active transaction. No EntityManager 's method is invoked to report

(per EntityManager ). L2 shared entity data cache  (per EntityManagerFactory). Database file page cache

the EntityManagerFactory 's getCriteriaBuilder method or by the  EntityManager 's getCriteriaBuilder method

with the persistence unit, and to create new instances of EntityManager . A persistence unit defines ... EntityManager may be created via a call to () . However, this approach places complete responsibility ... . It is much safer to use the methods runInTransaction and callInTransaction to obtain EntityManager s

  The following exception occures if we call entityManager .flush() where the corresponding JPA PersistenceContext has many entities and relations. What is the reason for the exception? entityManager .getTransaction().commit() instead of a entityManager .flush() works correctly. Unfortunately I

Hello, we have following situation: The EntityManagerFactory is always opened and won't be closed. Thread A with its own EntityManager persists entities and commits the entities successfully. Thread B runs afterwards also with its own EntityManager and tries to load the persisted entities by

InternalException during EntityManager.find()

reference obtained by EntityManager .getReference is accessed but the entity does not exist. Thrown when EntityManager .refresh is called and the object no longer exists in the database. Thrown when EntityManager .lock is used with pessimistic locking is used and the entity no longer exists in

;Consumer  work ) Create a new application-managed EntityManager with an active transaction, and execute the given function, passing the EntityManager to the function. If the transaction type ... , then the EntityManager is associated with this current transaction. If the given function throws an exception

 work ) Create a new application-managed EntityManager with an active transaction, and call the given function, passing the EntityManager to the function. If the transaction type ... , then the EntityManager is associated with this current transaction. If the given function returns without throwing

JPA Method in jakarta.persistence.EntityManagerFactory EntityManager createEntityManager () Create a new application-managed EntityManager . This method returns a new EntityManager instance each time it is invoked. The EntityManager .isOpen method will return true on the returned instance. Return

. See Also: EntityManager .find EntityManager .find EntityManager .lock EntityManager .lock Since: JPA 1.0 Public Constructors

JPA Method in jakarta.persistence.EntityManagerFactory EntityManager createEntityManager (   ... EntityManager with the specified synchronization type. This method returns a new EntityManager instance each time it is invoked. The EntityManager .isOpen method will return true on the returned instance

JPA Method in jakarta.persistence.EntityManagerFactory EntityManager createEntityManager (   ... JTA application-managed EntityManager with the specified synchronization type and map of properties. This method returns a new EntityManager instance each time it is invoked. The EntityManager .isOpen

JPA Method in jakarta.persistence.EntityManagerFactory EntityManager createEntityManager (   Map  map ) Create a new application-managed EntityManager with the given Map specifying property settings. This method returns a new EntityManager instance each time it is invoked

NamedEntityGraph EntityManager .createEntityGraph EntityManager .createEntityGraph EntityManager .getEntityGraph EntityManagerFactory.addNamedEntityGraph EntityManager .find Since: JPA 2.1 Public Methods

JPA Method in javax.persistence.EntityManagerFactory EntityManager createEntityManager (   ... application-managed EntityManager with the specified synchronization type and map of properties. This method returns a new EntityManager instance each time it is invoked. The isOpen method

JPA Method in javax.persistence.EntityManagerFactory EntityManager createEntityManager (   Map map ) Create a new application-managed EntityManager with the specified Map of properties. This method returns a new EntityManager instance each time it is invoked. The isOpen method

JPA Interface FindOption An option influencing the behavior of EntityManager .find . Built-in options control plain, plain, and plain. This interface may be implemented by custom provider-specific ... PessimisticLockScope CacheRetrieveMode CacheStoreMode Timeout EntityManager .find EntityManager .find Since: JPA 3.2

: the factory that creates {@link EntityManager } s configured according to the specified persistence unit ... - the name of the persistence unit Return: the factory that creates {@link EntityManager } s ... that creates {@link EntityManager } s configured according to the specified persistence unit Since: JPA 1.0

.CacheRetrieveMode Implemented Interfaces: FindOption Specifies how the EntityManager interacts with the second-level cache when data is read from the database via the EntityManager .find methods ... jakarta.persistence.cache.retrieveMode . See Also: EntityManager .setCacheRetrieveMode Query

that is passed as an argument to the EntityManager .createNamedStoredProcedureQuery method to create an executable ... with the EntityManager methods that create stored procedure query objects. Since: JPA 2.1 StoredProcedureParameter

query as a named query such that future query objects can be created from it using the EntityManager .createNamedQuery or EntityManager .createNamedStoredProcedureQuery methods. Any configuration

JPA Annotation PersistenceContext Target: TYPE, METHOD, FIELD Implemented Interfaces: Annotation Expresses a dependency on a container-managed EntityManager and its associated persistence context ... of the EntityManager .joinTransaction method. Since: JPA 2.1 PersistenceContextType type default PersistenceContextType