Here is my story: I am working on web project (deployed into weblogic8.1) that is webservice client of another system . I have decide to use SDO which can be serialize and deserialize easily from XML and XSD. But it's hard to find the implementation which satisfy the 2 following requirement,
1. Free (my boss don't want to pay money for this little app), and BEA AquaLogic Data is not free. 2. Run in JDK1.4 (because weblogic8.1 uses JDK1.4), so I cannot use Apache Tuscany SDO 3. It should be SDO2.0 because it have some helper class that help to create dataObject easily from xsd file.