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10

Using multiple databases

at a time? Also, can objects in one database reference objects in another database (e.g ... database connection requires a separate EntityManager/PersistenceManager. References to objects in another database are not supported. Of course, you can keep IDs of the other database objects and manage
Forum
10

removed objects stay with null field values in the reference

from the database, even if the object is not removed from the set explicitly. just to make sure ... is still in the database and loaded by a subsequent lazy loading ? No, after deleting an object it does not exist in the database anymore. But you may still have broken references to that object, like links to a web page that doesn't exist. hgzwicker
Forum
10

Storing Images and Object Pooling

an image database. ObjectDB includes many types of cache mechanisms, including object pooling. To use ... Hello we have heard your product and we will plan to use your product on image database. Is it good to use ObjectDB as image database? Image database just screenshots of desktops.   2- ) On JPA as
Forum
10

GWT RPC is throwing serialization exception when I have object db date value

. But in the database it seems to be stored a a objectdb.* type. Persisting new objects ... its Class object could not be loaded. For security purposes, this type will not be serialized.: instance ... for all of mine Data Transfer Object. But still I am getting this error. Note: (In gwt RPC you cannot use
Forum
10

ObjectDB's Database Doctor Incorrect Error Report

to the object and the existence of the object. There is indeed a problem with this database file ... Am I reading this correctly?  It seems that Doctor is telling me that one of my objects is missing.  Looking at the database with ObjectDB's Database Explorer though seems to show that the reference
Forum
10

How force always recreate database on redeployment.

Is there some easy way to force recreation/deletion of the current database on deployment of a web ... . Currently, to avoid multiple models in the database, I have to undeploy from Glassfish, stop the server, delete the database file, re-start the objectdb server, re-run the web app, which is tedious
Forum
10

Open several objectdb databases the same time

We tried to open objectdb databases from application and got following error: Attempt to open a database file 'D:\tmp\PAT-707\TC_9_2_3_1_8b@2015-09-17_12.08.15\TC_9_2_3_1_8b@2015-09-17_12.08.15.pa3 ... ) Caused by: com.objectdb.o.UserException: Attempt to open a database file 'D:\tmp\PAT-707\TC_9_2_3_1_8b
Forum
10

can't get HashMap out of the database

I'm trying to persist an Entity containing a HashMap. It stores the data in the database OK, but the map is always empty when I get the entity out of the database again. I've reproduced this problem ... and it is still not working. It involves nested embeddable objects. I've modified the test code
Forum
10

Removing objects where ManyToMany relationships exist

well enough, even if there's millions of Entity and OtherEntity objects in the database, and ten-thousands ... setOfOtherEntities;   } Now consider a number of OtherEntities are removed from the database. What happens with the numerous TreeSets for all the existing Entities in the database? Are OtherEntities
Issue
10

Cannot insert more than about 2^20 objects

Hi I have a DB with 4 entities and a total of 4 index. Once I reach 1048565 total objects in the whole DB, i am unable to insert more object, although i get NO error message nor exceptions. Doctor said Db is fine (see below) I notice that 1048565 objects + 4 entities + 4 ID indexes + 4