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Ecore ODA Driver

Revision as of 14:15, 3 September 2011 by Jconlon.verticon.com (Talk | contribs) (CVS)


The Ecore ODA Driver was created to allow an EMF ECore model to serve as an ODA data source. This makes it simple for BIRT reports to draw data from Ecore models.

The Ecore ODA Driver has been implemented in two projects:

  1. An interim driver was created as a DTP Incubator project. Its latest status can be found in Bugzilla 132958.
  2. A second official and more functional ODA driver has been added to EMF ECore for Indigo M4. See bug 330988 for details. This official EMF implementation effectively obsoletes the interim DTP Incubator implementation.


Interim Driver

Tim has written a tutorial for the Ecore ODA Driver at Overcoming Fear.

EMF Driver

For the EMF based driver see the 2011 EclipseCon Session: Reports and Charts right from your EMF models

Below you'll find some of the information common to both drivers (Unless noted) but without the detail or pretty pictures.

Interim Driver - Backport to Eclipse 3.2, EMF 2.2 and JDK 1.4

For the original driver a backport of these plug-ins was checked-in to CVS for use with Eclipse 3.2, EMF 2.2 and JDK 1.4. The backport has no guarantee of future support. If you would like instructions for using these versions of the plug-ins, please look here.

Interim Driver - Connection Properties and Profiles

In order to support requests for Connection Profiles and Connection Properties, we made some changes as of August 22, 2008 that will affect existing reports, i.e., the Model file location is now stored directly as a URI, the property for this URI has been renamed, Column Selections are contained in a single property (instead of in properties with increasing numbers), and the name of the Column Selection property has been changed. Hopefully these fixes will not be too disruptive to existing reports and the benefit of dynamic property binding will outweigh the inconvenience of either manually editing existing reports or re-creating those reports.


The sources for both drivers are available from CVS.


After obtaining the code, you may notice the drivers have a number of dependencies that might be un-met in your workspace:

Dependency Download Site
BIRT Report Designer http://download.eclipse.org/birt/downloads/
Datatools Connectivity http://www.eclipse.org/datatools/downloads.php
EMF Query http://www.eclipse.org/modeling/emf/downloads/?project=query
Object Constraint Language (OCL) Integration http://www.eclipse.org/modeling/mdt/downloads/?project=ocl

Using the Driver

Those less familiar with EMF or without a handy EMF model should install the EMF Examples from http://www.eclipse.org/modeling/emf/updates and create an instance of an .extlibrary file with some data. It's outside the scope of this document to describe this process, but typical readers will already have familiarity with EMF editors.

Of course, any serialized EMF model will do, as long as the package has been registered so that the Java classes representing the model are available at runtime.

Create a Report

The primary consumer of ODA data sources is BIRT. Typically, creating a BIRT report is the first step to using the Ecore ODA Driver.

Create an Ecore ODA Data Source

Any ODA drivers registered with the platform show up within BIRT as data source types, each with a wizard to allow for the entry of connection information. In the case of the Ecore ODA Driver, the only information required by the connection is the path to a serialized Ecore model of a registered model type. (If you aren't familiar with registering EMF models, see this question in the EMF/FAQ.) Attempting to load a serialized model for an unregistered package will result in an error.

Create an Ecore ODA Data Set

Once a data source has been created for your Ecore model, use the New Data Set wizard to launch the Ecore ODA Data Set Wizard.

...to be continued... Feature changes in process--screen shots forthcoming...


Interim Driver

The Interim Ecore ODA Driver and UI can be checked out of CVS from the Datatools_Project Repository of dev.eclipse.org with a path of org.eclipse.datatools.incubator/plugins.

Browse: ViewCVS

EMF Driver

The EMF Ecore ODA Driver and UI can be checked out of CVS from the Modeling Repository of dev.eclipse.org with a path of /cvsroot/modeling.

You will find the EMF Driver implemented as features under org.eclipse.emf/features:

  • org.eclipse.emf.oda-feature
  • org.eclipse.emf.oda.ecore-feature
  • org.eclipse.emf.oda.ecore.ui-feature