About connect

forum_thread

explorer NullPointerException

I studied ObjectDB a few hours ago and got some problems when use explorer . I run it and right-click in 'Open local database' window,and the all the pop menu item is gray and disabled,such as ‘new database’,'new directory','cut','copy' ... if I click 'tools---oprions' before open database, the errot I got is: [2012-05-21 09:51:11 #1 explorer] java.lang.NullPointerException at com.objectdb.o.CNC.p(CNC.java:253) at com.objectdb.o.EHL.d(EHL.java:55) at com.objectdb.o.VPN.(VPN.java:60) at com.objectdb.o.OPD.(OPD.java:69) at com.objectdb.o.OPD.(OPD.java:42) #1 2012-05-21 01:22 I studied ObjectDB a few hours ago and got some problems when use explorer. I run it and right-click in & ...

 
manual

ObjectDB 1.0 Manual

Welcome to the ObjectDB for Java/JDO Developer's Guide. Here you can learn how to develop database applications using ObjectDB and JDO (Java Data Objects), the revolutionary database programming technology by Sun Microsystems. The main purpose of ...

 
forum_thread

How to do an Offline Database Backup?

These are questions asked in the context of the proposed architecture described in the forum thread titled, "Sample JDO Architecture for Follow Up Questions".   I desire offline backups.  I must close all connections, wait for current database activity to stop, and prevent new connections until the backup is complete.  How can I guarantee that a database is no longer being used?  I think I can do so by trying to call PersistenceManagerFactory.close(), and keep trying, until it no longer throws any JDOUserExceptions. #1 2016-07-25 16:09 These are questions asked in the context of the proposed architecture described in the forum thread titled, "Samp ...

 
api-jdo

getConnectionFactory()

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

 
forum_thread

Intermittent Exception "Attempt to update types in read only mode"

I have a master/slave(s) setup and I am finding on the slaves that the slave client will get this message when trying to establish an EntityManager to the slave: ... The weird part is if I restart the slave DB then I can connect no problems and everything works fine. Replication between the DB's ...

 
api-jdo

getConnectionFactoryName()

Get the name for the data store connection factory.(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

setConnectionFactoryName(connectionFactoryName)

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

 
release

2.4.0

Release date: 2012-05-20 Download (5.4 MB) Binary:  objectdb-2.4.0.zip You should start by following a  tutorial or reading the manual ...

 
api-jdo

setConnectionDriverName(driverName)

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