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Re: Confused by OO & tie

by iburrell (Chaplain)
on May 17, 2004 at 15:55 UTC ( #354012=note: print w/replies, xml ) Need Help??

in reply to Confused by OO & tie

Think of 'tie' as a way to have an object act like a hash. Perl calls those methods on the object to implement the hash functionality.
my $value = $hash{$key}; my $object = tied %hash; $value = $object->FETCH($key);
Most objects are blessed references to hashes; they are implemented as hashes internally. Perl does not have a mechanism for having named attributes (ie instance variables) of an object. People use hashes to store the internal state of the object.

It is quite possible to have a tied hash implemented using a hash reference object.

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