Re: [jgap-users] protected evaluate() method in FitnessFunction

[Klaus M. <jg...@kl...>]

Damian,
 
why not use the public method getFitnessValue(IChromosome) in the same
class, which calls the protected methiod evaluate?
 
Best
 

Klaus
www.klaus-meffert.com <http://www.klaus-meffert.com/> 

 


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From: jga...@li...
[mailto:jga...@li...] On Behalf Of Damian
Krstajic
Sent: Saturday, August 30, 2008 4:26 PM
To: jga...@li...
Subject: [jgap-users] protected evaluate() method in FitnessFunction


What is the reason behind having protected evaluate method in
FitnessFunction and not public? Here is an example where it would suit me as
a user to have it as a public method. 

For example, I have several different fitness functions which extend
FitnessFunction and which one will be used depends on some dynamic runtime
conditions. So during the runtime I would like to call a method
Object1.a_method(FitnnessFunction myFunc) inside which I would call
myFunc.evaluate(IChromosome). The problem is that evaluate() method in
FitnessFunction is protected and I can't do that. Of course, I can modify
the source of the FitnessFUnction java and make it public, but I am curious
to know why it is protected in the first place. Probably there is a reason
behind it. Thanks.


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