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From Kris Schneider <k...@dotech.com>
Subject RE: [OT] Use of Static Methods
Date Wed, 09 Jul 2003 17:59:28 GMT
<pedantic>
Class methods cannot be overridden, they can be hidden. It's a compile-time
error for a class method to hide an instance method.
</pedantic>

Quoting "Yee, Richard K,,DMDCWEST" <Yeerk@osd.pentagon.mil>:

> I and a lot of other developers would disagree with the statement
> "Static methods are evil for many reasons including philosophical (they're
> not OO) and practical (you can't override their behavior)."
> 
> 1) Whenever you write a method that only accesses static data of a class,
> you should declare the method as static.
> 
> 2) It is not correct to say that static methods can't be overriden. They
> can
> be overridden with another static method. You can't override a static
> method
> to be non-static, however.
> 
> 3) There are many cases where using the static modifier on a method is
> totally appropriate. Typically, they are used on methods that provide a
> very
> specific functionality that will never change. Using the static modifier on
> such methods also reduces the overall memory footprint of an application.
> 
> Regards,
> 
> Richard
> 
> 
> 
>  
> 
> -----Original Message-----
> From: David Graham [mailto:grahamdavid1980@yahoo.com] 
> Sent: Wednesday, July 09, 2003 9:22 AM
> To: Struts Users Mailing List
> Subject: RE: [OT] Use of Static Methods
> 
> 
> > 
> > One of my programmers asked me whether or not it is OK to define 
> > helper methods as 'static' - and I realized that I didn't know the 
> > answer.  So I guess the question is, in a web application, can common 
> > code be factored out
> > to a helper class and marked as 'static'?  
> 
> Static methods are evil for many reasons including philosophical (they're
> not OO) and practical (you can't override their behavior).  You should use
> a
> Singleton class with non-static methods.
> 
> Struts' RequestUtils class is a good example of why you should never use
> static methods.  Developers want to override their behavior but can't
> because everything is static.
> 
> David
> 
> > Are there any major problems
> > with
> > doing this?  I should know the answer, but just can't put my thumb on 
> > it right now.... 8)
> > 
> > TIA!
> > 
> > Jerry Jalenak
> > Team Lead, Web Publishing
> > LabOne, Inc.
> > 10101 Renner Blvd.
> > Lenexa, KS  66219
> > (913) 577-1496
> > 
> > jerry.jalenak@labone.com

-- 
Kris Schneider <mailto:kris@dotech.com>
D.O.Tech       <http://www.dotech.com/>

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