The most important point about Hibernate Entity Manager and concurrency control is that it is very easy to
Read More →To complete this picture you also have to think about database transactions
Read More →The challenge is the implementation of this (and other) behavior outside an EJB3 container.
Read More →A first naive implementation might keep the EntityManager and database transaction open during user
Read More →This approach leaves Hibernate and the database to worry about concurrency.
Read More →Make sure you understand the implications before making a design decision.
Read More →It also provide a way to mark a transaction as rollback only, ie force the transaction to rollback.
Read More →With Container Managed Transactions (CMT) in an EJB3 container, transaction demarcation
Read More →The Hibernate entity manager generally raises exceptions which encapsulate the Hibernate core exception.
Read More →In an EXTENDED persistence context, all read only operations of the entity
Read More →This is perfect to implement the entitymanager-per-conversation pattern.
Read More →It is not legal to call entityManager.joinTransaction() if no JTA transaction is involved.
Read More →The use cases we show are in the context of long application transactions but version checking.
Read More →The version property is mapped using @Version, and the entity manager will automatically
Read More →This pattern is problematic if the persistence context is too big to be stored during user think time,
Read More →The application manipulates the state of detached instances originally loaded in another persistence context
Read More →The most important point about Hibernate Entity Manager and concurrency control is that it is very easy to
Read More →To complete this picture you also have to think about database transactions
Read More →The challenge is the implementation of this (and other) behavior outside an EJB3 container.
Read More →A first naive implementation might keep the EntityManager and database transaction open during user
Read More →This approach leaves Hibernate and the database to worry about concurrency.
Read More →Make sure you understand the implications before making a design decision.
Read More →It also provide a way to mark a transaction as rollback only, ie force the transaction to rollback.
Read More →With Container Managed Transactions (CMT) in an EJB3 container, transaction demarcation
Read More →The Hibernate entity manager generally raises exceptions which encapsulate the Hibernate core exception.
Read More →In an EXTENDED persistence context, all read only operations of the entity
Read More →This is perfect to implement the entitymanager-per-conversation pattern.
Read More →It is not legal to call entityManager.joinTransaction() if no JTA transaction is involved.
Read More →The use cases we show are in the context of long application transactions but version checking.
Read More →The version property is mapped using @Version, and the entity manager will automatically
Read More →This pattern is problematic if the persistence context is too big to be stored during user think time,
Read More →The application manipulates the state of detached instances originally loaded in another persistence context
Read More →