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Retrieving Metamodel without Connection

Type: Feature requestVersion: 2.4.2Priority: NormalStatus: FixedReplies: 1
#1

Hello!

I use Spring Data JPA. It uses the Metamodel to create repository beans. This triggers a connection to the ObjectDB server. It happens on every start of the Context. If it fails the application isn't available at all. I had the situations multiple times that my database server took longer to boot after a power outage than the tomcat machine. This leads to an unusable application until i restart tomcat.

Other JPA providers are able to fetch the Metamodel without connecting to the DB.
I would appreciate it very much if you could change this behaviour in some future version of ObjectDB.

Regards Ralph

#2

Build 2.4.3_05 changes the way that EntityManagerFactory's getMetmodel works.

If invoked before first connection to the server - the persistence unit model is analyzed locally on the client side.

ObjectDB Support
ObjectDB - Fast Object Database for Java (JPA/JDO)

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