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Failed to commit transaction: Attempt to commit a rollback only transaction

change to the database file. Is that possible? dmoshal David Moshal I don't know. Check ... ="." mode="write" /> <locking version-check="false" /> <processing cache="64mb" max-threads="10 ... locking set to true in config file update 2: problem goes away with this check: if (currentTx

Maven host down?

for new ODB build and m2.objectdb.com seems to be down. Can you check this please? Thanks. lwalkowski Lukasz Walkowski I cannot see any problem now. Maybe it was a temporary problem. Could you please check again? support Support It's working fine now. Thanks for checking. lwalkowski Lukasz Walkowski

Activated ObjectDB still throws "Too many persistable types"

have already reactivated and checked that my objectdb.conf is correctly used (by inserting random chars ... checks. Upgrading to 2.4.4 could cause problems only if the activation is not set correctly before. Make ... and usve6844? Could you please check both with 2.4.4 and tell which works and which doesn't

Remove an entity which attributes were changed - OptimisticLockException

flushing changes to the database. You may also disable optimistic locking checks if you do not need ... ? Could you please check if the same Java instance is used by the two operations (as ... one EntityManager in all plugins. And also the entity instances in both plugins are identical. I checked

Pre-detach loading: retrieval by navigation not working in if statement

. It's the Schrödinger's cat of JPA. Darren Kelly, Webel IT Australia webel Dr Darren Kelly I checked some ... Ghosts in the Machine, there must be a point of difference. I checked again and again, the reports ... , every loaded class is checked and automatically enhanced in memory (if applicable). Q: Is there any

Performance problem

. Please check that class. You probably have EAGER definitions that cause a massive load of objects from ... User but you should check the entire closure, i.e. the complete graph of objects that are reachable ... user are in the system. Could you please check our sample application we sent. Regards. peric.emil

Server connection management

have an internal connection pool that checks the health of a connection and reconnects if needed ... the thread and the socket. I just checked now and it seems to work well. Broken Connections on the Client ... and then the server gets an EOF notification. I just checked it on Windows XP. But it might depends

Query fails with failed to read

, please check both the client and the server log, or catch the exception and log the stack trace by ... ? backup? another application that uses ObjectDB? maybe Jetty restart?). You should try to check ... : > there is no exception for this on our application level This is strange. ObjectDB throws an exception. Just checked

Unexpected error when loading all entity instance

. Create a transaction and load 10.000 entity instances 2. Check for each entity instance ... the database is corrupted. Checking it with the ObjectDB Doctor produces errors. After using the Doctor ... the database file. I shutdown the application by closing all EntityManager instances. Please check

Tracking changes to new collections (in enhancement mode) after flush

? Can you check if it also happens with version 2.8.4? support Support yes, it is always the last ... will check it with 2.8.4 yet. btc_es BTC EmbeddedSystems We found out a workaround. If we touch ... of change events, including in embedded collections. We should check how this is implemented for nested

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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