Re: Overriding JComponent or implementing ComponentUI?

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From	Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid>
Newsgroups	comp.lang.java.gui
Subject	Re: Overriding JComponent or implementing ComponentUI?
Date	Tue, 10 Jul 2012 20:18:58 +0200
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On 10/07/2012 08:30, Lew allegedly wrote:
> Daniele Futtorovic wrote:
>> FWIW (as it's been a while I've done GUI code), the more complex and
>> specialised custom components I wrote, the further I lent towards
>> ComponentUIs. Unfortunately, I don't remember any exact benefit. Perhaps
>> a matter of cleanness and encapsulation (as it feels "more right" to put
>> that code in a dedicated place, rather than overriding stuff in the
>> component). There's also the issue of shared resources, although those
>> can be dealt with similarly in JComponent.
>>
>> I realise that was a terribly useless post. Sorry about that. :)
> 
> Honestly, I thought it was going to be useless for a second, but it
> turned out to be rather thought-provoking and best-practice oriented.
> 
> Assuming I understood your remarks correctly.
> 
> Josh Bloch says, "Prefer composition to inheritance."
> 
> In GUI terms this translates to, "Usually you have a JFrame as a member
> rather than as a supertype."
> 

Indeed the good man does, and indeed the good man is right. But I would
have liked to be able to find in my experience a pratical illustration
of that bit of wisdom. For, while trust may be fine, knowledge is good. :}

-- 
DF.

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Thread

Overriding JComponent or implementing ComponentUI? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-07-01 12:45 -0700
  Re: Overriding JComponent or implementing ComponentUI? "John B. Matthews" <nospam@nospam.invalid> - 2012-07-01 20:11 -0400
  Re: Overriding JComponent or implementing ComponentUI? Roedy Green <see_website@mindprod.com.invalid> - 2012-07-05 07:40 -0700
    Re: Overriding JComponent or implementing ComponentUI? "John B. Matthews" <nospam@nospam.invalid> - 2012-07-05 21:11 -0400
  Re: Overriding JComponent or implementing ComponentUI? "John B. Matthews" <nospam@nospam.invalid> - 2012-07-05 21:06 -0400
  Re: Overriding JComponent or implementing ComponentUI? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2012-07-10 01:42 +0200
    Re: Overriding JComponent or implementing ComponentUI? Lew <noone@lewscanon.com> - 2012-07-09 23:30 -0700
      Re: Overriding JComponent or implementing ComponentUI? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2012-07-10 20:18 +0200
        Re: Overriding JComponent or implementing ComponentUI? Lew <lewbloch@gmail.com> - 2012-07-10 13:25 -0700

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