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2

system exception occurred during an invocation on EJB GuestDao

(ContainerMapper.java:188) at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191) at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168) at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189) at org.glassfish.grizzly
Forum
2

Performance problem

on the production server from JBoss • Result - 13 seconds for 50 to 1000 results (from JBOSS Vaadin application ... . We have two ObjectDB databases on one ObjectDB server. Production database is running 5-10 times slower than test ... separate test environment its speed is very good. We did a performance analysis on our 2 linux servers
Forum
2

How to open a running db in ObjectDB Explorer?

way in which I could do that? It's not nice at all to close the application, copy the db in another location, start the application then finally I could explore my data, but it will be just a copy ... . There are two possible solutions. You can switch from embedded mode to client-server mode. Unlike
Manual
2

Chapter 2 - JPA Entity Classes

JPA Entity classes are user defined classes whose instances can be stored in a database. To store data in an ObjectDB database using JPA you have to define entity classes that represent your application data object model. This chapter explains how to define and use entity classes. 
Manual
2

Comparison in JPQL and Criteria API

, gt and greaterThan are equivalent, but it is a good practice to use the short form (gt) when applicable to emphasis a numeric comparison. .
Manual
2

Deleting JPA Entity Objects

well. Cascading may continue recursively when applicable (e.g. to entity objects that the Address
Manual
2

Entity Management Settings

. However, for some applications disabling this ability could be more efficient. The element
Tutorial
2

Getting Started with JPA - Eclipse Project

Eclipse: Right click the project node and select Run As > Java Application. Select Main - point and click OK.
FAQ
2

Is ObjectDB a NoSQL Database?

can be used in applications that cannot use conventional non ACID NoSQL databases because of a requirement for a very high level of consistency.
JPA Doc
2

JPA Annotations for Java EE

The following JPA annotations are in use to integrate JPA into a Java EE application and are managed by the Java EE container: