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Forum
10

Detaching objects after JOIN FETCH

Hi, I have a question about detaching objects after issuing query with JOIN FETCH. Let's say I ... above, detached objects are visible even after closing em. 2. When using mappedBy in class B (this is the case in my code), detached objects from relation are not visible. I should add mappedBy in
Forum
10

Error 613 - i cant put a list<Athlete> into a Squad object

which stores Athlete Objects, the Athlet has another embeddedCollection of Marks ... all the objects that are reachable from objects that you persist are also persistent. Any ... . See the Storing JPA Entity Objects page in the ObjectDB manual for more details. ggrassi
Issue
10

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
10

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 ... their proxies to retrieve additional dettached instances. If the object was detached through serialization
Forum
10

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

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
Issue
10

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 ... processing mechanism in sorting very large objects. This requires a fix, but meanwhile, adding a composite
Forum
10

Query can't see recently persisted object

does not appear to present a read consistent view of persisted objects within the same transaction. e ... . However if I call flush() on the EntityManager after the persist() the object will be found. Clearly ... the transaction. Is there a way of using or configuring ObjectDB to ensure read consistency of objects persisted
Forum
10

First query before any of the object has been stored

I have some code that, before writing an object via ObjectDB makes a query to ensure the new object is different from what's already stored.  The problem is that, before any instances of that object ... some other persistence related exception.  How can I know if any of an object has been stored
Manual
10

Index Definition

Querying without indexes requires iteration over entity objects in the database one by one. This may take a significant amount of time if many entity objects have to be examined. Using proper indexes the iteration can be avoided and complex queries over millions of objects can be executed quickly
Manual
10

WHERE clause (JPQL / Criteria API)

JPQL query that retrieves selective objects from the database. Out of the four optional clauses ... of this query defines an iteration over all the Country objects in the database using the c range variable. Before passing these Country objects to the SELECT clause for collecting as query results