Link questionsLink = new PageLink("questionsLink", questionsPage);
add(questionsLink);
ModelContext presentationsModelContext = new ModelContext();
presentationsModelContext.setDomainModel(app.getDomainModel());
Presentations presentations = (Presentations) app
.getEntry("Presentations");
Presentations orderedPresentations = presentations
.getPresentationsOrderedByTitle();
presentationsModelContext.setEntities(orderedPresentations);
ViewContext presentationsViewContext = new ViewContext();
presentationsViewContext.setApp(app);