About Data Set

forum_thread

Entity Update - Is the documentation up to date?

I'm working on my first ObjectDB project, and I just went back and reviewed some of the documentation.  Turns out I've been doing two things that http://www.objectdb.com/java/jpa/persistence/update suggests should not work. First, I've been modifying managed entities from outside an active transaction.  If I subsequently begin and commit a transaction, all my changes seem to be merged automatically. ... (e.g. ArrayList ) over arrays except for storing data (such as images) in byte[] . Enhancement is usually more ...

 
forum_thread

ObjectDB Server Connection Permissions

It would be useful if instead of creating a web service layer on top of a database, I could just set up permissions to entities and entity variables. Is this possible using ObjectDB Server or would this be a new feature request? ... a web service layer on top of a database, I could just set up permissions to entities and entity variables for client connections. This would be beneficial when providing specific raw data where additional business logic is not required. I suppose you could ...

 
api-jdo

setConnectionPassword(password)

Set the password for the data store connection.(Method of javax.jdo.PersistenceManagerFactory)

 
api-jdo

setConnectionUserName(userName)

Set the user name for the data store connection.(Method of javax.jdo.PersistenceManagerFactory)

 
api-jdo

setConnectionDriverName(driverName)

Set the driver name for the data store connection.(Method of javax.jdo.PersistenceManagerFactory)

 
forum_thread

Server closes if large query runs out of memory

We are using ObjectDB in production, and have found what we thing to be a serious problem:  the objectdb server can run out of memory and stop if a query deals with too many objects. This isn't the behaviour we expected for a product that we want to use to deliver 24/7 high-volume data collection. ObjectDB surely has some idea of the sizes of objects that it persists and retrieves, and so should be able to fail safely if it finds too many objects being retrieved to fit into memory. There must be some alternative to crashing! ... a product that we want to use to deliver 24/7 high-volume data collection. ObjectDB surely has some idea of the sizes of objects ... during JDO deletion query, and the temp threshold was set and was low (64mb).  There is an easy work-around, which is to divide ...

 
api-jdo

setConnectionFactory(connectionFactory)

Set the data store connection factory.(Method of javax.jdo.PersistenceManagerFactory)

 
api-jdo

setConnectionFactoryName(connectionFactoryName)

Set the name for the data store connection factory.(Method of javax.jdo.PersistenceManagerFactory)

 
api-jdo

setConnectionFactory2Name(connectionFactoryName)

Set the name for the second data store connection factory.(Method of javax.jdo.PersistenceManagerFactory)

 
forum_thread

Replication failed

Dear support members, I am trying to set up a replication url in objectdb.conf and have the the following error in the log files: [ObjectDB 2.3.4] javax.persistence.PersistenceException Failed to connect to server 127.0.0.1:6136 (Connection refused) (error 522) at com.objectdb.jpa.EMF.createEntityManager(EMF.java:176) My objectdb.conf: ... Dear support members, I am trying to set up a replication url in objectdb.conf and have the the following error in ... port = "6136" max = "200" /> <data path = "$objectdb/db-files" /> <replication url ...