raii flush (or, control resources ruby)

i know it's settlement can't control happens an vigilant destroyed. i am also wakeful defining category slight finalizer.

however flush jargon c++'s raii (resources initialized constructor, closed destructor)? control resources used inside objects even errors exceptions happen?

using ensure works:

f = file.open("testfile")
begin
  # .. process
rescue
  # .. hoop error
ensure
  f.close unless f.nil?
end

but users category have remember whole begin-rescue-ensure chacha everytime open slight needs called.

so example, i'll have following class:

class someresource
 def initialize(connection_string)
   @resource_handle = ...some mojo here...
 end

 def do_something()
   begin
    @resource_handle.do_that()
    ...
   rescue
    ...
   ensure
 end

 def close
  @resource_handle.close
 end

end

the resource_handle won't closed difference means category book exits.

or problem some-more i'm still doing too c++-like?