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Simple DSL for Configuring Spring Beans

  • Posted By admin on December 02, 2005

I have this working (in skeleton form). Anybody interested?

bean :id=>:one, :class=>:NamedBean do
  set :name, "first" 
end

bean :id=>:nv, :class=>:NameValueBean do 
  set :name, "nv" 
  set :value, :one, :local
end

bean :id=>"sb-with-string", :class=>:ScoreBean do
  constructor 15
end
Comments
  1. Seth — December 02, 2005 @ 02:29 AM
    Why not: bean :one isa :NamedBean with :name "first" end BTW, do one for Spring Web Flow! :)
  2. Josh Lucas — December 02, 2005 @ 10:17 AM
    I would be very, very interested. The bean configuration has been one of the more difficult selling points for Spring at work. I have a feeling this would help quite a bit.
  3. Dion Almaer — December 02, 2005 @ 11:15 AM
    Can you get rid of the backslashes? :) Dion
  4. Rob Lally — December 02, 2005 @ 11:16 AM
    I've been pondering building something like this for a while ... but never got round to it. It seemed to me that there were two ways it could work. 1. Using JRuby it could actually configure the containter. 2. It could spit out an XML file that would be read in by the regular bean factory. Which way have you gone? Either way : looks very pretty.
  5. Bob Lee — December 02, 2005 @ 11:36 AM
    I prefer BeanShell for this sort of thing. Why use two languages when one will do? bean() .id("one") .type(NamedBean) .set("name", "first"); Now that I think about it, BeanShell has an invoke() method which you can use to implement arbitrary/missing methods. You could use it to implement something like this: bean() .id("one") .type(NamedBean) .name("first"); Notice I used "NamedBean" and not "NamedBean.class". BeanShell supports this, too. I used the BeanShell approach for the Dynaop configuration. Now for references to other beans, could you do something like this? bean() .id("one") .type(NamedBean) .name("first") .foo(singleton("foo")) // reference bean "foo" with singleton scope .bar(prototype("bar")) // reference bean "bar" with prototype scope .tee(bean("tee")); // reference bean "tee" with its default scope I'm really not a Spring fan to tell you the truth. It's bloated and the code is inefficient.
  6. Bob Lee — December 02, 2005 @ 01:21 PM
    Thinking about it more... foo = bean(FooBean) // id is optional .name("Foo Bean") .singleton(); bean("bar", BarBean) .name("Bar Bean") .foo(foo) .prototype();
  7. twifkak — December 17, 2005 @ 08:49 PM
    Yeah, I'd take the Builder route and use method_missing to simplify the above syntax. Also: class ::Module def const_mising(sym) sym end end though maybe you consider that too much of a hack...
  8. Online Purchasing Stock — April 29, 2006 @ 12:35 AM
    I thout to do it in my local version...
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    The content of your show is great, I really enjoy it...
  10. 1942 Wheat Penny — May 04, 2006 @ 11:07 PM
    I thout to do it in my local version :(
  11. Movement Nausea Prescription Medicine — May 08, 2006 @ 02:57 PM
    I was very dissapointed of this.
  12. Free Casino Games Poker Slots Cash Facts Jokes Play — May 09, 2006 @ 04:11 AM
    Thanks for taking the time to do it :(
  13. Prescription Music Reference — May 12, 2006 @ 01:44 AM
    I thout to do it in my local version :(