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From Gary Gregory <garydgreg...@gmail.com>
Subject Re: [lang] NullArgumentException usage
Date Thu, 07 Jul 2011 17:17:39 GMT
On Thu, Jul 7, 2011 at 1:11 PM, Matt Benson <gudnabrsam@gmail.com> wrote:

> On Thu, Jul 7, 2011 at 11:56 AM, Gary Gregory <garydgregory@gmail.com>
> wrote:
> > Hi All:
> >
> > I do like using NullArgumentException, but I find writing this over and
> over
> > tedious:
> >
> > if (arg == null) {
> >  thrown new NullArgumentException(argName);
> > }
> > something(arg);
> >
> > How about this instead:
> >
> > NullArgumentException.check(arg, argName);
> > something(arg);
> >
> > or:
> >
> > something(NullArgumentException.check(arg, argName));
> >
> > Depending on the style you like.
> >
> > Where check is:
> >
> >    public static <T> T check(T arg, String argName) {
> >        if (arg == null) {
> >            throw new NullArgumentException(argName);
> >        }
> >        return arg;
> >    }
> >
> > Yes, you are pushing the argName on the stack (or passing it in a
> register)
> > and that is extra work, but you do not have to use the new method then ;)
> >
> > ?
>
> Notice that NullArgumentException doesn't live in [lang] v3.  :|
>


Hm... Clearly, I missed that day.

What happened? Did we decide it was not useful or redundant with something
else?

Gary

>
> Matt
>
> >
> > --
> > Thank you,
> > Gary
> >
> > http://garygregory.wordpress.com/
> > http://garygregory.com/
> > http://people.apache.org/~ggregory/
> > http://twitter.com/GaryGregory
> >
>
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>


-- 
Thank you,
Gary

http://garygregory.wordpress.com/
http://garygregory.com/
http://people.apache.org/~ggregory/
http://twitter.com/GaryGregory

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