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Maintaining referential integrity

to remove an instance of Company, it is deleted from the database, no matter if it's referenced by ... such deletion. The ObjectDB Doctor can help in identifying conditions that require a fix during development

Undeployment of an remote Glassfish application locks objectdb log file

that the WebApplication is still there. If you try to manually delete the folder, you will get an "Folder in use ... can delete the folder. The locked file problem does not exist if I deploy the WebApplication

significant performance decrease

"> <dir path="/" permissions="access,modify,create,delete" /> </user> <user username="$default" password="$$$###"> <dir path="/$user/" permissions="access,modify,create,delete

Shrinking Database Files

never shrinks when large number of objects are deleted and the only way to reclaim that space ... context to propose an answer.) CBE CBE ObjectDB reuses space of deleted objects but the database

Dirty checking

to generate a Json object with a list of the Users which were Added, Deleted, and Changed. That is a simple ... classes. Next a request comes in which deletes a company. So we need to send a message to the relevant

OutofMemory error with Object DB 2.0

" password="admin"> <dir path="/" permissions="access,modify,create,delete" /> </user> <user ... ,delete"> <quota directories="5" files="20" disk-space="5mb" /> </dir> </user> <user

database corrupt

="/" permissions="access,modify,create,delete" /> </user> <user username="$default" password="$$$###"> <dir path="/$user/" permissions="access,modify,create,delete"> <quota directories="5" files="20" disk-space

each 1-2 days objects on some objectdb level lock/block each other

="admin" password="admin"> <dir path="/" permissions="access,modify,create,delete ... /" permissions="access,modify,create,delete"> <quota directories="5" files="20" disk

again merger missing logs + objectdb exception

on both sides (for performance reasons) - some of these references are broken when we delete objects ... of maintaining these specific references on deleting are very high. is there a problem to have this kind

Unexpected Exception (Error 990) with ArrayIndexOutOfBoundsException

Query queryDelete = em .createQuery("DELETE FROM EventLogPersistEntry p WHERE p.id ... to the ObjectDb. I did not delete the Database file during these changes. The system where that error occured

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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