this.strategies = new LinkedList<ReificationStrategy<ReificationWidget, StereoTypes>>();
// order is important! add specific strategies first!
this.strategies.add(new ToolStripStrategy());
this.strategies.add(new TriggerStrategy());
this.strategies.add(new LinkStrategy());
this.strategies.add(new FormStrategy());
this.strategies.add(new SelectStrategy());
this.strategies.add(new PullDownStrategy());
// containerStack