The EntityManager is the representation of a PersistenceContext, allowing a user to manipulate data pulled from a database.
I have Java EE application with about 10 EntityManagers (number of EMs will probably increase). My application also contains many stateless, …
java jpa entitymanager conceptI'm trying to map a non-entity pojo with the createNativeQuery method of entityManager of jpa. By using something like this @…
jpa mapping entitymanagerBecause calling a flush() to get every entities persist from memory to database. So if I use call too much …
java hibernate jpa flush entitymanagerI am using Hibernate 3.6.0 with JPA 2 on Jboss AS 6.0.0 final. In an EJB of mine, there's a method which updated …
hibernate transactions jpa-2.0 entitymanager hibernate-entitymanagerAs of now I have a working Spring application with persistence. However now I want to use Hibernate with JPA …
java spring hibernate jpa entitymanagerWhat I am trying to do is inject through XML almost the same way that is done through A @PersistenceContext …
xml spring annotations entitymanagerI need to perform this query: SELECT * FROM (SELECT * FROM product WHERE car = 'large' ORDER BY onSale DESC) AS product_…
doctrine symfony entitymanager query-builderI am not using Spring so I am creating an instance of EntityManager within a class. I used Hibernate-Eclipse reverse …
java hibernate spring entitymanagerWe have a timer that triggers a job and do some import / export processing. But on commit we open encounter …
transactions java-ee-6 entitymanager timer-jobsI am getting following exception while I try to execute simple JPA 1.0 code. What may be the cause? 5453 DevPQRWDPBSSPersist WARN […
java jpa entitymanager openjpa jpa-1.0