}
    // meat of the processing
    public boolean run(Outline model, Options opt, ErrorHandler errorHandler) {
        for( ClassOutline co : model.getClasses() ) {
            CPluginCustomization c = co.target.getCustomizations().find(Const.NS,"code");
            if(c==null)
                continue;   // no customization --- nothing to inject here
            c.markAsAcknowledged();
            // TODO: ideally you should validate this DOM element to make sure
            // that there's no typo/etc. JAXP 1.3 can do this very easily.
            String codeFragment = DOMUtils.getElementText(c.element);
            // inject the specified code fragment into the implementation class.