Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses
 
PerlMonks  

Re^2: Conditional inheritance strategy

by citromatik (Curate)
on Oct 27, 2010 at 13:32 UTC ( #867720=note: print w/ replies, xml ) Need Help??


in reply to Re: Conditional inheritance strategy
in thread Conditional inheritance strategy

Not in general. @ISA is a package variable, it isn't bound to a specific instance. So, if you do:
my $x = My->new(source=>"xml"); my $y = My->new(source=>"json");
then now both $x and $y are instances of a class that inherits from My::JSON.

Good point

If My::XML and My::JSON only contain _init, and this is only called from new, you're getting away with it, but if they also contain methods that will be called elsewhere from the program, behaviour may be unexpected.

Yes, My::XML and My::JSON only contain _init and this is only called from new, so this is not a problem, but I think that I will reverse the inheritance as suggested several times in this thread

Thanks

citromatik


Comment on Re^2: Conditional inheritance strategy
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://867720]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others lurking in the Monastery: (4)
As of 2014-07-12 10:44 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    When choosing user names for websites, I prefer to use:








    Results (239 votes), past polls