Re: Subclassing a NSMutableArray
Re: Subclassing a NSMutableArray
- Subject: Re: Subclassing a NSMutableArray
- From: Ondra Cada <email@hidden>
- Date: Thu, 16 Mar 2006 18:35:25 +0100
Lorenzo,
On 16.3.2006, at 16:57, Lorenzo wrote:
I would
like to send the same commands to all the items of the array of the
objects
selected. The 20 commands are like
[item setParam:par to:theValue verbose:YES];
so I cannot use
makeObjectsPerformSelector:(SEL)aSelector withObject:(id)anObject
A clean indication you need a HOM (High Order Messaging) framework,
in which case the code looks kind of like
[[array do] setParam:par to:theValue verbose:YES];
Yeah, it's that easy.
Far as I know, the best free HOM implementation is the one of Marcel
Weiher: check www.metaobject.com.
Other than that...
But subclassing an anbstarct class like NSMutableArray seems to be
impossible. Is it true?
You want to read the docs on class clusters and on categories, of
which class clusters explain how to subclass an array (and also why
it is not what you actually want to do :)), and a category could help
to solve your problem, although--compared with HOM--a pretty clumsy way.
---
Ondra Čada
OCSoftware: email@hidden http://www.ocs.cz
private email@hidden http://www.ocs.cz/oc
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