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

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



Log In?

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

How do I use this?Last hourOther CB clients
Other Users?
Others chanting in the Monastery: (6)
As of 2023-12-07 23:52 GMT
Find Nodes?
    Voting Booth?
    What's your preferred 'use VERSION' for new CPAN modules in 2023?

    Results (33 votes). Check out past polls.