Groups > comp.lang.java.programmer > #17784

Re: multiple inheritance

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Subject	Re: multiple inheritance
Date	Mon, 13 Aug 2012 07:58:00 -0700
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On 8/13/2012 3:55 AM, Leif Roar Moldskred wrote:
> Arne Vajhøj <arne@vajhoej.dk> wrote:
>> On 8/2/2012 4:10 AM, Roedy Green wrote:
>>>
>>> 1. It has interfaces which gives much of the ability at lighter
>>> weight..
>>
>> Only for a very limited type of types (those with no implementation
>> at all).
>
> At times, I've wished that Java had automatic delegation (composition)

"Automatic delegation" is what I want.  I've even invented my own little 
syntax for it:

public SomeClass extends Fubar implements List(myList), OtherThing {

   private AbstractList myList = new ArrayList();

...

}

where the parenthesis in the interface list is a forward declaration to 
a field that will be the delegate for that particular interface.  It 
really shouldn't be that hard to do, just a few synthetic methods.

I really rather upset that we aren't getting something like this with 
Java 8.  I don't see any reason not to fix this right now, honestly.

Thread

multiple inheritance bob smith <bob@coolfone.comze.com> - 2012-08-01 19:28 -0700
  Re: multiple inheritance markspace <-@.> - 2012-08-01 20:07 -0700
    Re: multiple inheritance Gene Wirchenko <genew@ocis.net> - 2012-08-01 21:07 -0700
  Re: multiple inheritance Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-08-01 23:12 -0400
  Re: multiple inheritance Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-08-01 23:41 -0400
    Re: multiple inheritance Lew <lewbloch@gmail.com> - 2012-08-02 01:05 -0700
    Re: multiple inheritance Arne Vajhøj <arne@vajhoej.dk> - 2012-08-12 23:15 -0400
  Re: multiple inheritance Roedy Green <see_website@mindprod.com.invalid> - 2012-08-02 01:10 -0700
    Re: multiple inheritance Arne Vajhøj <arne@vajhoej.dk> - 2012-08-12 23:08 -0400
      Re: multiple inheritance Lew <noone@lewscanon.com> - 2012-08-12 20:19 -0700
        Re: multiple inheritance Arne Vajhøj <arne@vajhoej.dk> - 2012-08-17 22:33 -0400
      Re: multiple inheritance Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-08-13 05:55 -0500
        Re: multiple inheritance markspace <-@.> - 2012-08-13 07:58 -0700
        Re: multiple inheritance Arne Vajhøj <arne@vajhoej.dk> - 2012-08-17 22:38 -0400
  Re: multiple inheritance Jan Burse <janburse@fastmail.fm> - 2012-08-02 10:12 +0200

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