Hi and thanks for your answer!

Actually I pretty much tried this… See the code below:

OPCUABrowsePath browsePath = new OPCUABrowsePath();
browsePath.append(null, “Types”);
browsePath.append(null, “ObjectTypes”);
browsePath.append(null, “BaseObjectType”);
browsePath.append(“http://mynamespace”, “AssetAdministrationShellType”);
browsePath.append(“http://mynamespace”, “DeviceType”);
browsePath.append(“http://mynamespace”, “Body”);
browsePath.append(“http://mynamespace”, “MethodSet”);
browsePath.append(“http://mynamespace”, “DoGlueOperation”); // This is the method

String indexedBrowsePath = browsePath.generateIndexedBrowsePath(getServer());
NodeId nodeID = null;

try {
nodeID = server.translateBrowsePathToNodeID(indexedBrowsePath);
} catch (Exception e) {
log.error(“Path for Lbr could not be found”, e);
}

UaNode myMethod;
try {
myMethod = (UaNode) getServer().getAddressSpace().getNode(nodeID);

// Create the listener that handles the method calls
myMethodManagerListener = new MyMethodManagerListener(myMethod);
MethodManagerUaNode m = (MethodManagerUaNode) this.getMethodManager();
m.addCallListener(myMethodManagerListener);

But I get the mentioned error?

Also I think the error message is missguiding, because in Specification Part 4 it says: Bad_MethodInvalid The method id does not refer to a method for the specified object.
Which would indicate the method was not found on that object and not that an implementation is missing…

HI Jouni,
actually the method call can’t be wrong, because the error occurs also, when we try the calling with UaExpert.

Sadly we can’t use the code generator. It is not powerful enough for more complicated models, so we have to instantiate stuff by code.

The same error occurs when calling method on the type or on an instance. Is there any way to model methods in UaModeler and then use them by code, without completely creating a new method? Must be, or – the codegenerator must somehow do the same?! What is the mistake in the code above – what more information do you need? Its the whole code for setting up the method implementation?!

lg

Actually the problem with the codegenerator is, that it doesn’t generate code for elements that are not strictly contained in a parent type. E.g. if we add methods to a normal FolderObject, this is not reflected in the generated code…

Basically the set up in the address space is pretty easy. We have a type, where there is a FolderObject an in this FolderObject there are methods. The error occurs, independently if there are any parameters to the method or no parameters at all.

So I tried to add a listener to the method with the above code – I tried to do this for the method in the type and also (with another browse path) for a method in the Objects folder. But it doesn’t work. Actually we can get it really simple, what would be the right way, if we would have modeled a single method in the Objects Folder (with UaModeler) and want to add a listener for it?

Thank you very much!