About Object Database

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Tutorial
8

Step 4: Add a Controller Class

entity object is constructed and stored in the database. Processing is forwarded to a JSP page ... component to display the existing Guest objects. The returned ModelAndView object defines a target JSP
Tutorial
8

Step 4: Add a Controller Class

Guest entity object is constructed and stored in the database. Processing is forwarded to a JSP page ... the GuestDao component to display the existing Guest objects. The returned ModelAndView object defines
Forum
8

ObjectDB 2.6.9_06 (embedded): Cascading merge resulting in duplicate objects

this class. If I load a NaturalPerson entity from the database, then add a new address to the object's "addresses" list and use EntityManager.merge(object) to persist it along with the new address ... This issue maybe related to issue #110 (http://www.objectdb.com/database/issue/110
Forum
8

"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
8

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
8

Shrinking Database Files

context to propose an answer.) ObjectDB reuses space of deleted objects but the database ... never shrinks when large number of objects are deleted and the only way to reclaim that space would be with Database Doctor. Is there a way to reclaim database file space? Is it worth trying to reclaim
Forum
8

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
8

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
8

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
8

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