Map _attributes_ dynamically. How to?

Question

Good day.
I'm struggling with a following problem.
I need to dynamically create and map attributes. I've read the document "Dynamically Creating, Building and Mapping a Context in Web Dynpro", it was a bit helpful but it doesn't fit all my requirements.
What I've done:
1) Created an attribute in my controller:
wdThis.wdGetContext().getNodeInfo().addAttribute("Attr1", "com.sap.dictionary.string");
BTW, I can see, that the method addAttribute is overloaded and we can pass the IDataType, but I couldn't find how to replace "com.sap.dictionary.string" with IDataType. Is it possible?
2) Now, I want to map that attribute with an attribute in my view:
IWDNodeInfo custNodeInfo = wdThis.wdGetInitializationController()
     .wdGetAPI()
     .getContext().getRootNodeInfo();
IWDAttributeInfo localNodeInfo = wdThis.wdGetAPI().getContext()
     .getRootNodeInfo().addMappedAttribute("Attr1", "com.sap.dictionary.string");
BTW, what do the parameters of the addMappedAttribute mean? Am I right?
And there is a question - in the docs said that we should use IWDNodeInfo, but addMappedAttribute return IWDAttributeInfo and I can't get how to link attribute in the controller and in the view. It is the main question, hope for your help.

Answer 1

It's OK.
I tried the way you suggested but it failed:
1) Created an attribute in controller:
     wdContext.getNodeInfo().addAttribute("Attr1", "com.sap.dictionary.string");          
     wdContext.currentContextElement().setAttributeValue("Attr1", "test");
2) Accessed the data in a view:
Iterator iter =
               wdThis
               .wdGetInitializationController()//Initialization - it's mine component
               .wdGetContext()
               .getNodeInfo()
               .iterateAttributes();
while (iter.hasNext())
                    IWDAttributeInfo attrInfo = (IWDAttributeInfo) iter.next();
                    if (attrInfo.getName().equalsIgnoreCase("Attr1"))
                    {                                                  IWDInputField tv =
                              (IWDInputField) view.createElement(
                         IWDInputField.class, null);
                         tv.bindValue(attrInfo); // Here is an exeption, that the attribute "Attr1" doesn't exist.
                                    transCont.addChild(tv);
As you can see I got an exception. And it was expected, because there is not any maooing between Attr1 in the controller and view.