Assigning a encrypted URL to a new Vaadin Design Class

Hi all,
I am using Vaadin 7.4.1 in Eclipse EE version.I made two Vaadin Design class(Design1 and Design2) and want to navigate from design1 page to design2 page by a button click.
First page I called in Main UI class through below code.

init(VaadinRequest vaadinRequest){
Design1 design = new Design1();
Design1.button.addClickListener(new Button.ClickListener() {


public void buttonClick(ClickEvent event) {

// TODO Auto-generated method stub“You Just Clicked”);

////From this point I want to navigate to design2 page.


Is it possible to assign a encrypted URL to a new Vaadin Design class and navigate to it?

Help will be appreciated. :slight_smile: