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Issue
9

Sort of very large objects - out of memory

the following actions: 1) Create 5 persist threads which create and persist a large object in a loop 100 times each 2) Create 5 get threads which read 100 objects each in a loop based on object ... of "live" data in play at any time. The objectdb cache settings are low in the config - database
Forum
9

"Attempt to lock a non entity object" error

Probably a simple answer for someone who's been using ObjectDB for awhile: I'm reading objects from the database outside a transaction (inside doesn't seem to matter). First cycle of doEdit ... object" session.rollback() is somehow causing the problem (found through debugging
Issue
9

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.
Forum
9

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
Forum
9

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
Forum
9

persisting object with long[][] arrays of array

100,000 small objects (arrays) to the database is expected to take much more time than persisting ... Hi, I have an object I am trying to persist (java) - It has several fields of type long ... (); Here is the object: import java.io.Serializable; import javax.persistence.CascadeType; import javax
Issue
9

[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
Issue
9

JPA Composite Key make Object Db throws "Unexpected exception (Error 990)"

Hello Object Db community :) I am using this wonderful library and I caught a strange exception ... are compliant with the object Db Documentation: http://www.objectdb.com/java/jpa/entity/id Unfortunately, while merging the entity, object db is throwing the following Exception : [ObjectDB 2.4.0
Forum
9

Object DB vs EclipseLink/TopLink: Unloaded relationships in detached entities

a FETCH JOIN as described here: Detach JPA objects with lazy initialized properties This has the big ... .eclipse.org/mhonarc/lists/eclipselink-users/msg05258.html: Detached Objects get the connection need ... loading association from the database, when it needs it (without any merge call). From doug clarke
Forum
9

Object explorer cannot open odb file. ObjectDB many-to-many relationship

.getAssignements().get(a11pk); assertEquals(p1, a11.getProject()); But: Question 1: After my test, the database ... get an Assignement object from User object and Underlying object (but not through theirs keys). I'd like to work with typed object in the code whenever possible, and make key usage as transparent as possible