Service Data Object (SDO)

Hello,

i need a simple sample for SDO. Yes, there are samples on the net, but the samples are generating a DataGraph manually. I need one, reading an XML Schema creating a DataGraph after that it should read a XML file and load it into the Datagraph automatically. After that, i will access every DataObject.

I found some samples which uses XMLHelper and other, but I think im too stupid for

, it doesn�t work. I use the SDO API source. The compile is right! There is no HelperProviderImpl!

Allways the same exception after i compiled it.

How should this class look like? Any Ideas?

In the end, a small sample with the right API would be great! THX

Christoph

I found the answer! Its so stupid...I tried to work with EMF and SDO 2.0!

EMF only supports SDO 1.0. For that refer to the documents here:

http://www.eclipse.org/emf/docs.php#sdo

SDO 2.0 work is happening at Apache. For that go here:

http://incubator.apache.org/tuscany/

hey, i am trying to do the same thing now, and i got stuck at exactly the same place- the class wasn't found. how did you eventually work your way around it?

I don�t know, why it work, but i created the Model by EMF and got the Object by SDO and EMF. But in the end i only worked with the EMF construct. It is easier to get the objects by setter and getter classes, instead of hardcoded Strings.

Here is some Code i used to get my Project work:

// Create a resource set to hold the resources.
ResourceSet resourceSet = new ResourceSetImpl();
 
resourceSet.getResourceFactoryRegistry().getExtensionToFactoryMap()
.put(Resource.Factory.Registry.DEFAULT_EXTENSION,
new LocalResourceFactoryImpl());
 
// Register the package to ensure it is available during loading.
resourceSet.getPackageRegistry().put(LocalPackage.eNS_URI,
LocalPackage.eINSTANCE);
 
// Create a resource and load an existing xml file using an absolute
// URI.
URI uri = URI.createFileURI(new File("yourXMLfile.xml")
.getAbsolutePath());
Resource resource = resourceSet.createResource(uri);
resource.load(null);
 
// For SDO
 EDataGraph eDataGraph = SDOFactory.eINSTANCE.createEDataGraph();
 eDataGraph.setERootObject((EObject)resource.getContents().get(0));
 DataObject DataSDO = (DataObject)
 eDataGraph.getRootObject().getDataGraph().getRootObject();
 
// Get root Object for EMF
 DocumentRoot document = (DocumentRoot)resource.getContents().get(0);
    PurchaseOrder order = document.getOrder();

After that, you are able to access the Objects by EMF or SDO.

Accessing Object:

Perhaps it helped you....
I got the Problem, that i had to cast very mutch in my function, like you can see at EMF:name.