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Forum
15

migration path from JPA / Hibernate

when using Entities previously geared towards JPA / Hibernate migrating data from existing ... program that retrieves entity objects from Hibernate, detaches them and then persists them using ObjectDB ... for the detailed answers! > retrieves entity objects from Hibernate, detaches them and then persists them using
Issue
15

Navigation through lazy loading from Detached Objects

) is: Retrieval by navigation from detached objects is not supported, so only persistent fields ... : on accessing lazy loaded relationships outside a transaction, after a query, from Glassfish forum thread ... a similar extension in ObjectDB would ease emigration of web applications from EclipseLink to ObjectDB. Just
Forum
15

Query becomes slower on moving from ObjectDB 1.x to ObjectDB 2.x

from 1.x to 2.x. To activate the index the database has to be rebuilt by running the Doctor in repair ... . i will check it and let you know. I will use the following command after i convert from 1.x to 2.x ... more. So, please let me know what exactly i need to do to solve this ? You didn't mention step 4 from post #9
Forum
15

drop a column from table

Hi, I want to drop one column from my database table suppose i have 3 column (id, name, address) now i want to drop address. then what will be the query or procedure..   Just remove the field from ... the field from the entity class you will have to iterate over all the relevant objects, mark them as dirty
Forum
15

Import data from MySQL

mysql data into objectdb? Currently to import data from other databases to ObjectDB you will have to write your own conversion program. If you use JPA with MySQL you can retrieve old data from MySQL ... Replication feature. You may subscribe to this feature request to increase its priority. See also the migration path from JPA / Hibernate forum thread. gzdillon
Issue
15

InternalException - error reading field from "queue" database

from ObjectDB queue at rbccm.felix.objectdb.messaging.ObjectDbMessagePipe.take(Unknown Source ... .lang.RuntimeException: Error getting message from data at rbccm.felix.objectdb.messaging ... . there are broken references from entity object field values (probably in _payload) to a type
Forum
15

java.lang.ClassCastException in OSGi runtime when loading data from DB

ClassCastExceptions on my "entity" classes when I try to read data from the DB. In a very old (2011?) forum ... typedQuery = entityManager.createQuery("SELECT FROM Person p WHERE p.id = 1", Person.class ... is available from two different class loaders: A Person class that is specified in your query. A Person class
Issue
15

Allow removal of entity class from ObjectDB & Explorer

Hi. It would be very useful to be able to delete an entire entity class from ObjectDB, but especially from Explorer. This is very useful for everyone, but also for clients that don't own a license ... using [Edit > Delete] from the menu bar or right click (context menu) and Delete. zmirc data303
Issue
15

Compatibility Problems Upgrading from 2.6.9_04 to 2.7.6

Hi, We are preparing to upgrade our database servers and application dependencies from 2.6.9_04 ... have switched the jar that includes these dependencies and the problems disappeared.  From my latest round ... the upgrades incrementally (DB servers to 2.7.6 followed by code once stabilized)? Thanks,  Clinton > From
Issue
15

Can't open DB-file with explorer, but from within my code it works

Hi, The problem occured since an update from my old-version (2.4.7_08) to the new version(2.4.7_18): 1) my recent db-file, created with the old-version, has been copied to the local db-folder ... programatically (from within my code) without any errors 4) the db doctor ends without error messages