About connect

release

2.0.0

Release date: 2010-09-26 Download (3.39 MB) Binary:  objectdb-2.0.0.zip ObjectDB 2 is already in use in production in several applications and is ...

 
release

2.3.2

Release date: 2011-10-25 Download (5.48 MB) Binary:  objectdb-2.3.2.zip You should start by following a  tutorial or reading the manual ...

 
issue

Server Deadlock

Our objectdb server completely stopped responding to requests for new connections. The 'server' command also would not respond. A thread dump (attached) shows a deadlock. Bug Version: 2.2.9 Priority: Normal Status: Fixed Replies: 2 Type:  Bug ...

 
forum_thread

Get list of database files

Hi, we would like to know if there is any API we can use to get a list of all database files on an ObjectDB server. The ObjectDB explorer has such a feature (File->Open C/S Connection->Browse...). Thanks for help! #1 2013-06-24 12:38 Hi, we would like to know if there is any API we can use to get a list of all database files on an ObjectDB s ...

 
forum_thread

client server set up and load

Hello All, Can objectdb handle client - server connections from over 200 users? Can it be efficiently used in client-server mode? Code examples where possible will be appreciated. Thank you. Regards #1 2015-09-01 14:38 Hello All, Can objectdb handle client - server connections from over 200 users? Can it be efficiently use ...

 
forum_thread

Where Does ObjectDB Block/Lock?

These are questions asked in the context of the proposed architecture described in the forum thread titled, "Sample JDO Architecture for Follow Up Questions".   Questions about blocking/locking.  With my PersistenceManager multiThreaded=true architecture, I desire to know where ObjectDB is actually blocking/locking so I might adapt to achieve better concurrency. 1) Where are locks when accessing PersistenceManager by multiple threads? 2) Does it lock at PersistenceManager.currentTransaction()? #1 2016-07-25 15:41 These are questions asked in the context of the proposed architecture described in the forum thread titled, "Samp ...

 
issue

objectdb.home for client/server

Currently, we do need to manually setup the objectdb.home property eventhough we're working on client/server mode. However, without setting this in our client, he complains about the missing objectdb.conf. Why is this required? Can't the server deliver it? Most of the time we do not even know where our object db home is located at as we might have multiple server instances running on multiple machines so all we do really need to supply should be the server connection url and no objectdb.home..   Alex Bug Version: 2.2.8 Priority: Normal Status: Closed Replies: 1 Type:  Bug ...

 
tutorial

Step 3: Define an EJB Session Bean

Explains how to define an EJB session bean in an Eclipse Java EE 6 web application. Operations on the database will be performed by an instance of a session bean (EJB) class that we will define in this step: Open the [New Java Class] dialog box by right clicking the guest package node (in the [Package Explorer] window) and selec ...

 
forum_thread

Relationships and tracking changes

3. Object relationship I try to create a 1->n relation (EBVerlag is 1 and EBUser is n) between two tables: Table "EBVerlag": #1 2017-02-10 17:29 Hello !! I am new in JPA / ObjectDB development and I have many questions:   ...

 
forum_thread

listening on a particular IP aside localhost

I have being searching all around for how to do this but still no luck. I want objectdb to be able to listen in server mode to other connections from another machine where client is installed. I will like to have objectdb on machine A, while B,C, D can access the database in a using code like this emf = Persistence.createEntityManagerFactory("objectdb://192.168.50.56:8888/myapp6136.odb"); emf.createEntityManager(); #1 2015-10-17 15:58 I have being searching all around for how to do this but still no luck. I want objectdb to be able to lis ...