REST how to pass empty path parameter?

Question

I\'m building REST web app using Netbean 7.1.1 Glassfish 3.1.2

I have 2 URL:

\"http://myPage/resource/getall/name\"  (get some          


        

Answer 1

You can specify a regular expression for your Path Parameter (see 2.1.1. @Path).

If you use .* matches both empty and non empty names So if you write:

@GET
@Path("getall/{name: .*}")
@Produces("application/json")
public Object Getall(@PathParam("name") String customerName) {
      //here I want to call SQL if customerName is not null. is it possible???
}

it will match both "http://myPage/resource/getall" and "http://myPage/resource/getall/name".

Answer 2

@GET
@Path("getall{name:(/[^/]+?)?}")
@Produces("application/json")
public Object Getall(@PathParam("name") String customerName) {
  //here I want to call SQL if customerName is not null. is it      

 possible??? 
  }