Search code examples
javajavascriptajaxdwr

Javascript classes and DWR


I've been playing with DWR and converters for a while and I really wanted to map my Java classes to JavaScript classes. Using DWR converters, I have the option to point out what is the name of my JS constructor given a Java class. So far so good... The problem arises when my JS constructor is within a JS package-like name (just like YUI's package system, eg my.beautiful.package.MyClass). DWR's current implementation doesn't allow me to use this kind of construct, giving me a SyntaxError when I try to use it. Is there an elegant way arround this limitation?


Solution

  • As far as I know the this isn't possible directly. I have in my current work project experimented with enhancing each returned object on the client side with methods from a Javascript class, which gets the result that I think you are interested in.

    DwrService.getThings({
      callback:function(things){
        for(thing in things){
          YAHOO.augmentProto(thing, my.beautiful.package.MyClass);
        }
        // do your stuff here
      }
    });
    

    I'll have to check at work on monday (now is sunday) that augmentProto is correct one to use, but I think it is. There may even be a better hook into DWR that'll allow you to do this on the fly automagically.