In a GWT application should I use a different event (and event handler) for switching to each View?

In a GWT application should I use a different event (and event handler)
for switching to each View?

References

Reference NO 1

http://stackoverflow.com/questions/9900312/gwt-do-i-make-event-and-event-handler-class

Reference NO 2

http://stackoverflow.com/questions/2951621/gwt-custom-events

Reference NO 3

http://www.gwtproject.org/articles/mvp-architecture.html

Reference NO 4

https://developers.google.com/web-toolkit/tools/gwtdesigner/tutorials/loginmanager

Reference NO 5

http://code.google.com/p/mvp4g/wiki/MultiModules

Reference NO 6

http://alextretyakov.blogspot.com/2011/11/gwt-event-bus-basics.html

Reference NO 7

https://github.com/google/gwteventbinder

Reference NO 8

http://www.tutorialspoint.com/gwt/gwt_quick_guide.htm