tizone

I have tried some of the advices that fpiragibe wrote, but the problem is the same. Definetively, I can't make the iReports plugin for NetBeans works with JPA. Does anyone succeed on making that task?.

Giulio, Thanks for your response. I have tried "Persistence.createEntityManagerFactory( "PersistenceUnitName"), null);" in a main class in the same project that I am trying to test Jaser reports. It works in the following way: If the Persistence Unit exist in the project: If I have the libraries of TopLink in the project, it works. I have tried with both toplink-essentials-agent.jar and toplink-essentials.jar, and with each one separately, and it works in all the ways. If I do not have such libraries in the project, the message of the exception is "No Persistence provider for EntityManager named ..." If the Persistence Unit does not exist in the project, the message of the exception is always "No Persistence provider for EntityManager named ...".So, I am guessing that the classpath of my project, is well configured, and the problem is and issue with the iReports plugin. Anyway, I have tried add the TopLink libraries to iReport classpath (Tools - Options - iReport - Classpath), with the following results at the moment of creating a new EJBQL connection with the wizard: If the library added is toplink-essentials.jar, the message exception is always "oracle.toplink.essentials.PersistenceProvider cannot be cast to javax.persistence.spi.PersistenceProvider", whatever the Persistent Unit exists or not. If the library added is toplink-essentials-agent.jar (instead of toplink-essentials.jar), the message exception is always "No Persistence provider for EntityManager named ...", whatever the Persistent Unit exists or not. I have also tried adding the jar of the project, and the source folder of the project (where "META-INF/persistence.xml" resides) in the classpath of iReport, and the results are the same as above.I really don't know what to try next. I would appreciate any tip on that. Thanks very much, tizo

So, nobody uses iReports plugin for NetBeans with JPA connections?. Thanks!

Hi there, I am using the iReports plugin (iReport-nb-3.5.2.nbm) for NetBeans (6.5). It works perfect for JDBC connections, but I am having an issue with JPA ones. Here is how can the problem be reproduced: Create a new report with the wizard. Create a new Connection / Data Source. Choose an EJBQL connection. Enter an arbritary name for the connection, and the name of the Persistence Unit, of which file persistence.xml is in a jar of an EJB module, that is configured in the classpath of iReports (Tools - Options - iReports).Here is where I have my first question. Where iReports is supposed to look for the Data Source of the Persistence Unit?. I mean, for configuring the Persistence Unit, NetBeans seems to look it in my GlassFish server for development. And during execution of the EJB, of course is taken from the GlassFish server. But, what about iReports?. Is it looking in the GlassFish server too?. Should I have to have GlassFish up to design a report with EJBQL?. Anyway, when I press Test button to test the connection, it says "No Persistence provider for EntityManager named MyPersistenceUnitName". I have made some more test with another options: If I enter a name of a Persistence Unit that does not exist, the result is the same. If I add the TopLink libraries to the iReports classpath (toplink-essentials-agent.jar and toplink-essentials.jar), then the result is "oracle.toplink.essentials.PersistenceProvider cannot be cast to javax.persistence.spi.PersistenceProvider".Any help will be appreciated. Thanks very much, tizo