ObjectDB for Java/JDO Demo Instructions for Eclipse

The JDO Directory demo has been tested with Eclipse 2.1.0.
Eclipse can be downloaded from: http://www.eclipse.org/downloads/.

Create the Project

From the main menu select File => New => Project....
In the New Project dialog select Java Project and press Next:

Specify the Project Name and the demo Directory, and press Next:

Finally, select the Libraries tab and add jdo.jar and ObjectDB jar file (odbfe.jar / odbse.jar / odbee.jar) located in the ObjectDB lib directory using the Add External JARs... button. Adding these JAR files is necessary for every project which uses ObjectDB and JDO:

Make sure that JRE System Library [jdk1.4] or above is specified, and then close the dialog with the Finish button.

Build & Run

You can build the demo by Project => Rebuild Project in the main menu (it might be done automatically when the project is created). To run a step in the demo you can simply select its eMain class in the Package Explorer and then use the Run => Run As => Java Application command in the main menu. Alternatively you can use the Run => Run... command, setting explictly a configuration for each step using the New button (set the configuration Name and Main Class and then press the Run button):

Step 1
This step creates a new ObjectDB database and stores an initial object graph using JDO.

The expected output is:

The [ObjectDB Enhancer] message, indicating "on the fly" JDO enhancement of four persistence capable classes, is not shown if these classes are already enhanced.

Step 2
This step uses JDO to create, update and delete an object. Eventualy, the database content remains the same after these operations.

The expected output is:

Step 3
This step retrieves objects from the database using JDO extents and queries, without modifying the database.

The expected output is:

Step 4
The final step opens the visual manager window.