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Multi-tenant setup

> For example using multiple schema or multiple database. How to handle connections between app (Jboss ... ). It is more tricky when using ObjectDB within an application server as automatic injection of entity ... it to use static Java classes for the common data and maps (as persistent fields) to store specific

Embedded Database Replication

As we all know, embedded databases out perform server databases on every occasion ... replication is optimal and healthy? Alternatively some kind of jboss style UDP broadcast from each ... a database in embedded-server mode, you may be able to use the server url for replication as with an ordinary server. support Support

Object belongs to another EntityManager - ERROR

:161) 10:29:15,027 ERROR [stderr] (http--10.23.3.98-8081-5) at org.jboss.as.web.security

Many connections possible? and will it makes problem in future?

server or web server (GlassFish, JBoss, Tomcat) or by dedicated load balancing tools. as thread numbers (depending on your operating system) and TCP/IP ports

Posting Sample Code

to the ObjectDB database directly (no persistence unit). Keep the test as simple as possible - remove unnecessary code (but keep it complete and runnable). You may use the following example as an initial template for your test case:

Chapter 4 - JPA Queries (JPQL / Criteria)

The JPA Query Language (JPQL) can be considered as an object oriented version of SQL. Users familiar with SQL should find JPQL very easy to learn and use. This chapter explains how to use JPQL as well as how to use the JPA Criteria API, which provides an alternative way for building

File lock exception on odb$

. We had a server failure which caused an unexpected reboot. As a result, the application ... but instead we got the exception below. No other process had a lock on the file, especially as ... problem. In this case we weren't affected as the dbs were empty anyway but I'm a bit worried

ObjectDB 2.4.3

Added support for using ObjectDB with JBoss AS 7.1.1. Improved performance of merging managed entities. Fixed a deadlock. Changed license checks.

ObjectDB 2.3.1

Added support for using ObjectDB with JBoss AS 7.0. Sample databases (world.odb, points.odb) included in ObjectDB distribution. New default Explorer colors (apply with Tools > Options > Fonts > Reset

Step 4: Create an ObjectDB Data Set

Queries against the database are represented in BIRT as data sets. SELECT p.x as x, p.y as y FROM Point p WHERE p.x BETWEEN :low AND :high Use copy and paste to enter