#93 Accessing Type of Element

[Anonymous]

Hi Blenta,

I want to get the Type (or namespace) of a complex (child) Element with data, but I can't find a way to get it working.
I know how to do it when I am just working with ComplexTypes from the beginning, but now I want to do it when starting with an Element, that contains values. Every method I tried to access the complex Type/ Schema from that point resulted in null pointers.

I added a little example Project and the corresponding model and xsd.

I hope you can help me with the solution.

Best regards,
Sebastian

[Anonymous]

Please use this jar org.yaoqiang.bpmn.model-5.0.7.jar.

XMLElement elementType = comp.getElementType();
ComplexType complexType = XMLModelUtils.getSchemaComplexType(elementType);
System.out.println(complexType.getName());

[Anonymous]

Thanks for your response, my example works with this new module.

However, when I try to use it in my main project, I encounter a very strange problem. I need this in the context of a Web Apllication, made by professor Mueller. And for some reason the access of the type does not work in the web application.

In order to eliminate other mistakes I created a little part of Code. It only requires the process-instance-Id (188 in this case) of a running Demo.bpmn Process that is in UserTask 2 (ID: _4) and has one produkt in the cart.

Yaoqiang yaoqiang = new Yaoqiang();
            yaoqiang.initDatabase();
            Map<String,Object> workItem = yaoqiang.getWorkItem((long) 118, "_4");
            Map<String, DataInput> dataInputs = yaoqiang.getDataInputs(workItem);
            DataInput input = dataInputs.get("Cart");
            XMLComplexElement cart = yaoqiang.getWorkItemComplexTypeValue(workItem, input);
            XMLElement item = cart.get("Item");
            XMLCollectionElement itemCol= (XMLCollectionElement) item;
            XMLElement element = itemCol.getFirstCollectionElement();
            XMLComplexElement comp = (XMLComplexElement) element;
            System.out.println(comp.toName());
            System.out.println(comp.get("pName").toValue());
            System.out.println(comp.get("pID").toValue());
            XMLElement elementType = comp.getElementType();
            System.out.println(elementType != null);
            ComplexType complexType = XMLModelUtils.getSchemaComplexType(elementType);
            System.out.println(complexType.getName());

In a simple Java Project this works totally fine, but if I use it in the web apllication the elementType is null for some reason.
It might seem strange, but since this code schould be able to run everywhere, I just added it to the beginning point of the controller class (action == null). This way the code is executed as soon, as someone clicks the Start link.

I added the project as attachment.

Could you please take a look at this strange bug?

[Anonymous]

I forgot one thing:
In the Controller the workflowMgtBean.registerModel(...) Methods will be a problem because you probably don't have these models in your repository. It would be better to add a block comment for those.

[Anonymous]

Sorry, I think I "found" my problem. I don't know why, but my default glassfish domain seems to be bugged. When I tried it again on another system (my laptop), it suddenly worked and with a new domain it also works on my main pc.

Thank you for your work again.