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Date: Thu, 19 Jun 2003 12:14:29 -0700 (PDT)
From: Al Chou <hotfusionman@yahoo.com>
Subject: Re: [math] design patterns (was Re: cvs commit:
 jakarta-commons-sandbox/math/src/java/org/apache/commons/math/stat
 UnivariateImpl.java)
To: Jakarta Commons Developers List <commons-dev@jakarta.apache.org>
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--- Phil Steitz <steitzp@yahoo.com> wrote:
> --- Al Chou <hotfusionman@yahoo.com> wrote:
> > I would prefer that
> > commons-math be easy for users to use than for it to stick closely to
> typical
> > Java designs just for the sake of staying Java-ish.  
> 
> I agree; but actually sticking to "Java-ish" design patterns makes it easier
> to use for Java developers.

Yes, I had thought of that.  But I think there may be occasions when we can
provide an easier to understand (and hence use) design than the standard "Java
way" (thinking of the I/O or JTree classes here as not the most obvious to
use), and we should keep an open mind to that possibility.


> If I understand what you are saying, this is not possible in Java, at least
> not
> using the same class.  It is certainly possible to have one class expose a
> static method with the same name, signature and semantics that another class
> uses for an instance method.  For example, we could have UnivariateImpl
> expose
> an instance method that did the same thing that a static method in StatUtils
> did. Why we would choose to do that is unclear to me, but it is certainly
> possible in Java.

I wouldn't want to do that, because it would defeat my intent of relieving the
user of having to know whether a method is a class or instance method.  Eric
Pabst mentioned that Commons Bean-Utils has this functionality.  I wouldn't
push to implement it in commons-math yet, but it's interesting to hear that it
can be done.


Al

=====
Albert Davidson Chou

    Get answers to Mac questions at http://www.Mac-Mgrs.org/ .

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