If i invoke jsp file using mx:HTTPService from the flex .mxml file, does it indicate a rest style architecture.
I would like to use rest style architecture for building web services in my project. Could you please provide some information on this.
There is more to REST than just using HTTP calls. REST is as much a design philosophy as it is any specific architecture. If you're really interseted in a REST approach, Wikipedia might be a good place to start: http://en.wikipedia.org/wiki/Representational_State_Transfer . Keep in mind that due to Flash Player limitations, you can only really do GET and POST from Flex, so it will be hard to do proper REST.