Re: [Pharo-users] Generating custom classes based on attributes from XML Document

You now can match on attributes too. The attributes: arguments can be any attribute specification object or just an ordinary dict or other association collection (nil values mean a key just must be present with any value).   And there is visitor pattern support so you don't have to define polymorphic extension methods on every node class or use a bunch of isWhatever testing messages when tree traversing.

Sent: Friday, March 18, 2016 at 10:17 AM From: "Peter Uhnák" <i.uhnak@gmail.com> To: "Pharo Users List" <pharo-users@lists.pharo.org> Subject: [Pharo-users] Generating custom classes based on attributes from XML Document

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