About serializable

forum_thread

How to delete M2M relationship?

In user model class I have the following: public class User implements Serializable { ... following: public class User implements Serializable { @ Id @ GeneratedValue ...

 
doc

java.util.EventObject

(Class of java.utilClass EventObject)

 
doc

java.security.Permission

(Class of java.securityClass Permission)

 
api-jdo

javax.jdo.identity.IntIdentity

This class is for identity with a single int field.(Class of JDO)

 
api-jpa

javax.persistence.CacheRetrieveMode

Used as the value of the javax.persistence.cache.retrieveMode property to specify the behavior when data is retrieved by the find methods and by queries.(Enum of JPA)

 
api-jdo

javax.jdo.JDOFatalUserException

This class represents user errors that cannot be retried.(Exception of JDO)

 
api-jdo

javax.jdo.JDOUserCallbackException

This class represents exceptions caused by exceptions thrown during execution of callbacks or listeners.(Exception of JDO)

 
api-jdo

javax.jdo.JDOUnsupportedOptionException

This class represents exceptions caused by the use of optional features not supported by the JDO implementation.(Exception of JDO)

 
api-jpa

javax.persistence.PessimisticLockException

Thrown by the persistence provider when an pessimistic locking conflict occurs.(Exception of JPA)

 
forum_thread

Accessing objects to make them available after EntityManager close?!

Hi, I would like to get all the instances of an entity object. So I wrote a function which returns a list of these instances. My problem is if I print out these instances before closing the em and returning the list, it works as I expected; if not, the function returns only one field correctly, another field is always Null. The details is as follows: ... Entity public class Vifr_dic implements Serializable { private static final long ...