14 | Deleting JPA Entity Objects transaction, it can be deleted using the remove method: Employee employee = em.find(Employee.class, 1 ... (); The entity object is physically deleted from the database when the transaction is committed. Embedded objects that are contained in the entity object are also deleted. If the transaction is rolled |
14 | ObjectDB Object Database Features full transaction recording and replaying. Automatic diagnosis and repair of corrupted database files ... ObjectDB can be very effective in heavy loaded multi-user systems. Transactions JPA/JDO ACID transactions. Operations: begin, commit, rollback. Processes and Threads All API classes and interfaces |
14 | Threaded Test - Failed to commit transaction: Unexpected internal exceptionThreaded Test - Failed to commit transaction: Unexpected internal exception |
12 | javax.persistence.EntityManager). If this method is called when the entity manager is associated with an active transaction, the persistence context remains managed until the transaction completes. Throws: IllegalStateException - if the entity ... : the PessimisticLockException will be thrown if the database locking failure causes transaction-level rollback |
11 | Detached Entity Objects method, which clears an EntityManager's persistence context. Rolling back a transaction - either by ... transaction when merge is called because operations that might modify the database require an active transaction. Cascading Merge Marking a reference field with CascadeType.MERGE (or CascadeType |
11 | UPDATE SET Queries in JPA/JPQL objects into an EntityManager. Updating the relevant entity object fields within an active transaction ... queries can only be executed within an active transaction and the changes are visible to other users ... (); A TransactionRequiredException is thrown if no transaction is active. On success - the executeUpdate |
11 | DELETE Queries in JPA/JPQL transaction, either explicitly by calling the remove method or implicitly by a cascading operation ... queries can only be executed within an active transaction and the changes are visible to other users ... (); A TransactionRequiredException is thrown if no transaction is active. On success - the executeUpdate method returns |
1 | [ODB1] Chapter 4 - JDO Metadata="transactional" /> <field name="f3" default-fetch-group="true" /> <field name="f4 ... in the class is always required. persistence-modifier (persistent | none | transactional) The default ... as transactional, like f2 above, has similar behavior to transient because its value |
1 | [ODB1] Chapter 3 - Persistent Classes must know when a persistent field is modified during a transaction because the change must be applied to the database when the transaction is committed. ObjectDB must also know when a persistent field ... when a persistent object is going to be stored in the database during transaction commit. A possible action |
1 | javax.jdo.Constants to specify that transactions are managed by the Java Transactions API, as documented in JSR-220. The value for TransactionType to specify that transactions are managed by the Java Transactions API, as ... .supportedOptions() String OPTION_TRANSACTIONAL_TRANSIENT "javax.jdo.option.TransientTransactional |
