Fast Object Database for Java - with JPA/JDO support

About database

81-90 of 200 resultsRefresh

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

database. Description: i have three classes here declare variables ... with that same object and same database. --------- So, point is two different operation, two different thread,one object(we can assume one table in sql), one database. if it will possible

How to do an Offline Database Backup?

all connections, wait for current database activity to stop, and prevent new connections until the backup is complete. How can I guarantee that a database is no longer being used? I think I ... JDOUserExceptions. What is the proper way to do an offline database datastore file backup

Explorer bug ? Objects seem to be missing from database in Class view, but are present as references

because it appears to be either database integrity corruption, or it just looks like ... ) We see that 2 Project objects were created, however in the database Explorer it lists size=0 for Project class ... a broken database. It might be related to the flush bugs that are being fixed in the last builds

Object DB Explorer fails to open database

. The code runs fine. i.e. Role objects are getting persisted in the database. But when I try to open the database using Object DB Explorer, it fails. I have attached all the related files. Regards, Md ... Hello again, I have another case where Object DB Explorer fails to open database. I have a BaseEntity

Embedded Database Replication

As we all know, embedded databases out-perform server databases on every occasion. The problem with embedded databases is that theyre difficult to scale. If I were to create an entire enterprise web application within a single jar file using embedded tomcat and embedded objectdb I would run into

database version

Is there some way of telling, just from an obd database file, what version it is? dmoshal David Moshal An ObjectDB 2.x database file has no version, at least from the point of view of ObjectDB users. You should be able to use the same database file with different versions of the ObjectDB 2.x software. support Support

A few questions on object database design

I've been trying to model a database that stores data in an MMORPG. With ObjectDB, a lot of things ... outperforms a lot of other conventional table-oriented databases, but I'm wondering ... entities, then it seems like we are back to the table-oriented databases' design principles

Refresh data in application after database data has changed

my application and I want to add a person with the same national number as a person already in the database, my program has to block the creation. So far so good. Now... I have a person in my database ... in the database explorer when the program is running and I want to recreate the person, he keeps

How to create a wildfly datasource with dsJndi name to an objectdb database?

Hello everybody, maybe someone can help me creating a wildfly datasource to an objectdb database? I ... are stored in my objectdb database - wildfly has a security domain setup using the DatabaseServerLoginModule Therefore I need a dsJndiName for the objectdb database and I can't find anything how to create

Error opening database with ObjectDB Explorer when using composite key

Hi, When I use a composite key in an entity and fill this database with this entity, ObjectDB explorer throws me an error when opening this database saying something about an invalid ID class and not ... with the issue. support Support Added a sample database copaco Edwin Brood Thank

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