ObjectDB ObjectDB

Internal Website Search

131-140 of 200 resultsRefresh

Missing (null) elements in eager loaded references

the issue in this case. support Support It happend yesterday after we installed an update and I was the only logged in user. So it beeing another Thread closing the EntityManager is not possible. It happend when I made an export, which happens all in one Thread. Is there an event, notification

Post-compile enhancement fails when static Log4j 2.5 based logger used in Entity

I doubt this is an ObjectDB-enhancer problem, I am however reporting it in case anybody else encounters the problem too. It is mostly also not a concern for my own web app, because in most cases a non-static logging variable holder can be used in an @Entity. ObjectDB 2.6.3_04 Apache Log4j2 - 2.5

Indexing a field results in internal Exception

. Is there anything I can look for that might result in this exception? sjzlondon Steve Zara More details ... . If you are working in client-server mode, you should try to restart the server after schema change. After adding an index to an existing entity class with instances in the database, run the ObjectDB

NullPointerException in ENH.g(ENH.java:401)

: Exception in thread "main" java.lang.NullPointerException at com.objectdb.o.ENH.g(ENH.java:401 ... collection of other entity classes. We use objectdb in embedded mode and this error seems to happen after a few ungraceful shutdowns of the database (e.g. quit the process without proper shutdown). Thanks in

Query to search for common elements in two separate collections.

OF :someCollection Is something like this possible in the JPA spec? bensteele Ben Steele A possible ... for equality. The hash code of every stored collection should be stored in an indexed field, possibly in a new entity or embeddable class that would wrap the collection with its hash code. support

In memory processing for ObjectDB

, but to take it to next level really we wanted to check whether is there any In memory mode available ... see in settings is query cache, is it only that query result sets are cached or I can actually have a all of my Objects in Cache ? We can run the embeeded mode for perfomance, or embeeded + in memory

Is it ok to put list or map of embeddable objects in entity ?

Hi, Is it ok to put list or map of embeddable objects in entity? I mean, for example : @Entity ... ? In the examples, there is only situation where there is one single instance of embeddable class in ... >()) on an entity that had some Class_B instances in bList? Will they be deleted correctly from database

Reading 1.x odb files in ObjectDB 2.x without upgrading

Hi, We have a problem in the backward compatibilty in our software as once we have migrated object db odb file from version 1.x to 2.x, user is unable to open the odb files in the application which is having object db 1.x installed. Is there any way to read odb files from 1.x in object db 2.x

"where in" query

Is it possible to run a query selecting values that exist in a provided list? e.g. something like: SELECT u FROM User m WHERE u.username IN ('test_user','anotheruser') I've tried various ... below). The only similar examples I can find in the docs involve a join query - but my list isn't in the database

Activation license not picked up in Jenkins

with on a machine when run from the command line or in a docker container. However, when run as a Jenkins build pipeline on the same machine, they fail. The activation licence is in the file: /var ... . For some reason, Jenkins (which runs as docker-in-docker) is not recognizing the activation license

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