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Tutorial
8

Step 3: Define an EJB Session Bean

transaction begin and commit. The next step is adding a Servlet Class that will serve as the application controller.
Tutorial
8

Step 4: Add a Servlet Class

)); em.getTransaction().commit(); } // Display the list of guests
Tutorial
8

Step 4: Add a Servlet Class

(); em.persist(new Guest(name)); em.getTransaction().commit
Result
8

ObjectDB Object Database Features

. Operations: begin, commit, rollback. Processes and Threads All API classes and interfaces are thread safe
Result
8

Posting to ObjectDB Website - Important Instructions

MyEntity("test");         em.persist(e);         em.getTransaction().commit();         Query
JDO Doc
8

javax.jdo.Constants

2.1 String PMF_ATTRIBUTE_DETACH_ALL_ON_COMMIT The name of the persistence manager factory element's "detach-all-on-commit" attribute. The name of the persistence manager factory element's "detach-all-on-commit" attribute. Since: JDO 2.1 String PMF_ATTRIBUTE_IGNORE_CACHE The name of the persistence
JPA Doc
7

javax.persistence.LockModeType

that row and obtains the modified value, before T1 has committed or rolled back. Transaction T2 eventually commits successfully; it does not matter whether T1 commits or rolls back and whether it does so before or after T2 commits. P2 (Non-repeatable read): Transaction T1 reads a row
JPA Doc
5

javax.persistence.CacheStoreMode

the behavior when data is read from the database and when data is committed into the database ... /update entity data into cache when read from database and when committed into database. Insert/update entity data into cache when read from database and when committed into database. Forces refresh
JDO Doc
5

javax.jdo.listener.StoreLifecycleListener

during javax.jdo.PersistenceManager.flush or javax.jdo.Transaction.commit. Invoked whenever a persistent ... .commit. It is called after the field values have been stored. Parameters: event - the store event ... is stored, for example during javax.jdo.PersistenceManager.flush or javax.jdo.Transaction.commit
JPA Doc
5

javax.persistence.EntityTransaction

- if isActive() is true Since: JPA 1.0 void commit() Commit the current resource transaction, writing any unflushed changes to the database. Commit the current resource transaction, writing any ... - if the commit fails Since: JPA 1.0 boolean getRollbackOnly() Determine whether the current