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system exception occurred during an invocation on EJB GuestDao

.containers.EJBContainerTransactionManager.processSystemException(EJBContainerTransactionManager.java:748) at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:698) at com.sun.ejb.containers.EJBContainerTransactionManager.postInvokeTx

Shared (L2) Entity Cache

isCached = cache.contains_Class_Object">contains(MyEntity.class

General Settings and Logging

contains the following <general> element: < ... when processing large data, such as query results that contain millions of objects. The

objectdb-2.6.9_06: Extended Persistence Context fails: 'Attempt to begin a new transaction when a transaction is active'

.containers.BaseContainer.preInvoke(BaseContainer.java:2004) at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:210) at com.sun.ejb.containers ... .containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:723

Database Management Settings

The <database> configuration element specifies back end (database engine) settings that are relevant on the server side and in embedded mode. The default configuration file contains the following <database> element:

Apache License, Version 2.0, January 2004

contained within such NOTICE file, excluding those notices that do not pertain to any

Step 3: Define an EJB Session Bean

and JBoss, and not by servlet containers, such as Tomcat and Jetty. By using EJB classes we can move some work from the application to the EJB container (i.e. to the application server

Step 5: Add a JSP Page

generates the guestbook page output, which contains a simple form for signing the guestbook, followed by

JPA Web App Tutorial - Maven Project

> The current directory should be guestbook-web (containing the pom.xml

Report Generation with BIRT and JPA

">Getting Started tutorial. The database file contains 1,000 Point entity objects