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Problems using custom classes in JasperReports/osgi

Description

I don't think this classifies as a bug but I think users would see it as a bug. This particular problem may occur when migrating from ADempiere to iDempiere if Jasper Reports with custom classes are used, for instance if a bean collection is used to generate a report.

In Adempiere all classes are available to all so to say. I have a plugin that depends on JasperReports. The plugin generates reports using beans of classes org.compiere.model.* and also from own custom classes. I suspect this is not an uncommon scenario.

When the JasperReports plugin is called it can't see these classes since the org.adempiere.report.jasper.library doesn't import the packages where the beans reside.

Do you know if there exists a dynamic way of importing classes to a plugin in osgi? I think that would be the best solution to this.

What I did to temporarily solve my particular problem was to import the needed packages into org.adempiere.report.jasper.library. That's a very custom solution so it would be good with a more general solution.

Any ideas?

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Daniel Tamm June 29, 2012 at 6:24 PM

Thanks for the replies! I did the DynamicImport-Package solution. Worked right away slightly smiling face OSGI rocks! Will this be added to the release?

Heng Sin Low June 29, 2012 at 6:01 PM

Add Eclipse-RegisterBuddy: org.adempiere.report.jasper.library to org.adempiere.base/META-INF/MANIFEST.MF should work. Another option is to add DynamicImport-Package: * to org.adempiere.report.jasper.library/META-INF/MANIFEST.MF

Hesham Ahmed June 29, 2012 at 10:12 AM

The proper way would be to add a Fragment Bundle with the required jars and classes. Here's how to do it in simple steps:

  • Start a new Fragment Project (File -> New -> Others.. -> Plug-in Development -> Fragment Project)

  • Set the name and for Host Plug-in use org.adempiere.report.jasper

  • Build and Export as "Plug-in Development -> Deployable plug-ins and fragments"

  • Copy the generated .jar file (found under plugins folder) to plugins folder of your idempiere installation (client or server)

  • Add a line (use other lines as reference) to start plug-in in configuration/org.eclipse.equinox.simpleconfigurator/bundles.info

  • Start iDempiere and test your reports

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Created June 22, 2012 at 4:14 PM
Updated March 13, 2014 at 2:18 PM
Resolved February 15, 2013 at 6:02 AM

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