About transaction

51-60 of 200Refresh
Tutorial
24

Step 6: Set the Spring XML

>
Tutorial
24

Step 6: Set the Spring XML

> transaction-manager="myTxManager" />
Manual
24

Working with JPA Entity Objects

via an EntityManager’s persist method, which must be invoked within an active transaction. On transaction commit ... Entities section. If a managed entity object is modified within an active transaction the change is detected by the owning EntityManager and the update is propagated to the database on transaction
Result
22

ObjectDB Object Database Features

and double writing. Additional recovery layer - supports full transaction recording and replaying ... heavy loaded multi-user systems. Transactions JPA/JDO ACID transactions. Operations: begin, commit ... damaged database files with minimum data loss (if any). Transaction Replayer Transactions
Manual
22

Database Explorer

the Edit > Move Element commands. Saving Changes The Explorer manages an active transaction for every open database file. All the editing operations are associated with the active transaction. The File > Save menu command commits the transaction (applying all the changes to the database). The File
Manual
22

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
Issue
21

Use temporary files to enable very large transactions

We have transactions in which many objects are created. These objects are no longer needed in the current transaction after creation. Unfortunately, we will receive an OutOfMemory exception ... .com/database/forum/921 on post #4 you wrote, that ObjectDB should support very large transactions in
Forum
21

Access entity version before commit transaction

commiting the transaction: 1. Change entity field e.g. from a to b 2. Create a change entry in database ... the transaction before commiting it. How can I achieve this? If I add something to a collection field ... field it doesn´t. I tried transaction.flush() in combination with transaction.refresh(entity
Issue
20

Removed entities can be found by query in the same transaction

Hello, we opened a transaction, load an entity from database and removed this entity by em.remove ... : ObjectDB uses snapshots in order to isolate transactions, i.e. to hide uncommitted flush changes of one transaction from other transactions, but still make them available to that transaction
Forum
20

Visibility of changes in Transaction is not visible to a JPA QL Query

I have two simple Entities ( see attachment ) and a simple SLSB with container managed transactions ... InitialContext();    javax.transaction.UserTransaction tx = (javax.transaction.UserTransaction) context ... ();   } catch   The problem is that the items that I add in the transaction are not visible when I