Re: OO Pattern Container x Elements and Method Chaining

# method chaining
$cont1->get_elem('name')->do_something();

# identical to
$elem1 = $cont1->get_elem('name');
$elem1->do_something();
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These are in fact identical, other than the temporary variable $elem1. Nothing about method chaining requires that the element know that it's contained by the container.

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Re^2: OO Pattern Container x Elements and Method Chaining by LanX (Saint) on Oct 08, 2021 at 15:31 UTC
Sorry, I forgot to make clear that `->do_something()` needs to know the actual Container $cont. I wanted to keep it short for clarity. update It could be solved with a special Method Cascading. Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply] [d/l]
Re^3: OO Pattern Container x Elements and Method Chaining by jdporter (Paladin) on Oct 08, 2021 at 15:52 UTC
Ok, but in that case, neither form - with or without the temporary variable - will achieve that. Nothing special gets communicated through method chaining. At least not in POP.	[reply]
Re^4: OO Pattern Container x Elements and Method Chaining by LanX (Saint) on Oct 08, 2021 at 16:02 UTC
as I said `$cont->get_elem('one')` can return another object belonging to a wrapper class "MemberElement" dynamically cloned from `$elem0` and enriched with the container info. `MemberElement` could inherit from `Element` to make sure all methods are transparently available or use AUTOLOAD to delegate methods to `$elem0` Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply] [d/l] [select]
Re^5: OO Pattern Container x Elements and Method Chaining by jdporter (Paladin) on Oct 13, 2021 at 03:53 UTC
Re^6: OO Pattern Container x Elements and Method Chaining by LanX (Saint) on Oct 13, 2021 at 11:42 UTC


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Re: OO Pattern Container x Elements and Method Chaining

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