About Object Database

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Object belongs to another EntityManager - ERROR

a record in database [ObjectDB 2.4.6_13] javax.persistence.RollbackException 10:29:14,880 ERROR [stderr] (http--10.23.3.98-8081-5) Failed to commit transaction: Object 'pbdmodel.impl.OrgJedinicaImpl ... .UserException: Object 'pbdmodel.impl.OrgJedinicaImpl#8' belongs to another EntityManager 10:29:15,072
Issue
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Database File Compression

ObjectDB database files are usually smaller than database files of other Database Management Systems (object databases and relational databases) but additional internal compression is still possible ... . So the effect of using compressed ObjectDB database file on performance is unknown yet.
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8

Performance with large databases

a larger database. Is fetching an object by the id faster than fetching by an indexed field, or ... When populating a large database (10s of GBs) performance drops suddenly at a certain time whenever I run the populating application.  Is there typically a database size when indexes can no longer
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8

Using the wrong class to access a database

the Point database described in the Getting Started section: package com.objectdb.tutorial ... if I can access the database from here. This program is almost the same as the first; it only calls ... are working fine, but the third ruins the database: - The number of entries is zero. - running the app
Issue
8

[Explorer] Editing Database Files

databases in a read only mode. The Explorer should support creating and storing new database objects and editing and updating existing database objects, visually, with no code. This is one of the features ... . Please subscribe to this feature request. Editing databases in the Explorer is now supported by ObjectDB 2.3. lwalkowski gorilla77 FastModel pikotenta
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8

Attempt to refresh a non managed entity object (error 635)

.IllegalArgumentException Attempt to refresh a non managed entity object (error 635) Nothing changed in my code ... with Intellij's JPA database explorer, which required me to use a JPA persistence.xml configuration file ... entity object, i.e. a new entity object that has not been persisted yet, or a detached entity object (e
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how to persist an object twice into two diff. collections of two diff. classes

ok my problem,    i persist a Squad Object into a Cup Object at the beginning, after i have to create and persist a competition object in which i have to put some of the already created/persisted ... .java:259) at ch.hsr.gymtastic.technicalServices.database.DBConnection.commit(DBConnection.java:46
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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 ... >()) on an entity that had some Class_B instances in bList? Will they be deleted correctly from database ... X not found". I found an option to put a classpath for persistence objects and metadata, where I
Forum
8

Example database world.odb

! The attached program exports data from the World database to the standard output in JSON format. You will need google-gson in order to run it. Thanks a lot! How to save to World database persistent objects ... Hello! Where can I find classes for example database world.odb? Thanks for the answer.   The source
Forum
8

Object Relations Error after Schema Change

, until a user that still has the old version of the class accesses the database. Please verify ... database to another ObjectDB database, we think starting with a new DB would help resolve ... . Could you please check the database with the ObjectDB Doctor and post the output? In addition, you can try migrating