I have a XML like this <packagedElement xmi:type="uml:Class" xmi:id="EAID_4A" name="DCEdge" isAbstract="true"> <!-- some stuff --> </packagedElement> <packagedElement xmi:type="uml:Association" xmi:id="EAID_46"> <!-- some stuff --> </packagedElement> and I would like to generate UmlClass and UmlAssociation classes for this. I could use XMLPluggableElementFactory, however that only allows me to specify the target class only on the element's name, such as doc := (XMLDOMParser on: someXML) nodeFactory: (XMLPluggableElementFactory new elementClass: GenericElement; handleElement: 'packagedElement' withClass: UmlPackagedElement) parseDocument. However I need better granularity, because I would like to have a different class for 'packagedElement[xmi:type="uml:Class"]' and different class for 'packagedElement[xmi:type="uml:Association"]'. Of course I could use double visitors (so use the Pluggable stuff to get UmlPackagedElement) and then make another pass on it to get the final classes, however I would prefer to have to wanted class directly without the need to go through intermediate representation. Is there a way to do this? Thanks, Peter