From: SASADA Koichi <ko1@...>
Date: 2013-01-16T23:08:35+09:00
Subject: Re: Redom: Distributed object based server-centric user-friendly web application framework

(2013/01/16 15:27), Alec Taylor wrote:
> So it's basically Google Web Toolkit (GWT:
> https://developers.google.com/web-toolkit/) for Ruby; much like
> Pyjamas (http://pyjs.org/) is for Python?
> 
> How generalised will you be making the client-side, e.g.: will you be
> generating a bunch of HTML+JS+CSS files which talks RESTfully with
> your Ruby server; that you can then load onto PhoneGap apps?

GWT (and maybe Pyjamas) compiles some language to javascript.
But redom doesn't make any JS (and other language) code (*1). All of DOM
operations (and other JS methods) are invoked by RPC from server-side.

example:
 Server-side              Browser-side
   alert("hello")
     RPC ----------------> alert("hello")

   document.foo.bar
     RPC ----------------> document.foo => <ref1>
     <ref1> <--------------
   <ref1>.bar
     RPC ----------------> ref1.bar

Yes, it has performance drawback because all operations need
"server->browser" RPC (and also all browser-side events such as mouse
click, etc will be sent to server-side).

We optimize huge RPCs sendig using bulk messaging technique.


*1: we support Ruby to JS compilation using Opal only for performance.

-- 
// SASADA Koichi at atdot dot net