ObjectDB ObjectDB

Internal Website Search

151-160 of 200 resultsRefresh

OneToMany and cascade delete problem

is the result updating a bidirectional relationship (Product - Offer) only on one side. It is the application responsibility to apply updates on both sides. In practice, however, updating only the owner side is usually sufficient because the other side is being updated automatically when the object

Entity object parameter in Explorer parameter

Hello, I cannot set an entity object in a parameter for a bulk update in the explorer query ... the SET clause. For example, in the query: UPDATE Account dep SET dep.status=:a WHERE dep.status=:b Parameters: a: Status#10002 b: Status#10003 That query updates all accounts with status Status#10003

Replication error on slave restart

(with recording from transaction 1) when I restarting slave server. ...and I updated to v2.5.4_04 ... step 6 every time repeating step 3 As you can see slave is updated now only to the end of the first ... and transactions to the disk. So the master database is not being updated regularly, regardless of using

Problem on JPA Merge Entity.

). The statement update don't throw exception. And when i try to reload statement the value i have set before ... update. The statement's property is typed by a class that is a superclass of the newSingleValue ... component to statement and update statement. Works except the update. The statement is returned to the page

How storage works?

attached stored in the DB. If I update my Car adding a new Wheel object is all the Car updated? Or only changed part is updated? By other words, If I have one complex data model ... Herve Ferreira If you update a complex object model - only modified entity objects are stored by

How to do multithreading with embedded ObjectDB

();                     em.getTransaction().begin();                     //Query q = em.createQuery("UPDATE Point SET x = x + 1");                     Query query = em.createQuery("UPDATE Point SET x = x + 1 ... one of the following ways: 1. Synchronize your update queries, so they will be executed sequently

how to operate with same object but two different Thread on database.

Hi, i have two thread one is for insert data another is for update data but in same object and same ... object of Gettersettetclass, i.e insert operation and pass that object to update.java class. Update.java Here i want create another thread define a method which is for update operation. and i am getting

com.objectdb.o.InternalException: null

.paint(AquaTreeUI.java:129) at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161) at javax ... (AquaTreeUI.java:129) at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161) at javax.swing ... .AquaTreeUI.paint(AquaTreeUI.java:129) at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161) at javax

queries more than 10 times slower using 2.8.1 versus 2.7.6

Please advise whether updating the statistics, as explained on issue #2417 post#15 helps ... updated. support Support Note that we haven't tested it on your new database but on a old sample database for which statistics was already updated as part of the work on issue #2417. Hopefully updating


the database Update the object Commit the transaction, storing the updates. When the app is finished ... the object Commit the transaction, storing the updates. If another thread has updated the same object ... version a new entityManager is opened & closed for each action (load, remove, etc). When an update

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support