Re: Constructors as factory methods

From: Date: Fri, 17 Aug 2001 07:26:05 +0000
Subject: Re: Constructors as factory methods
References: 1  Groups: php.pear.dev 
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[Mika Tuupola <tuupola@appelsiini.net>] > Is there any concensus on can a class constructor act as > a factory method? > > For example if I have a classes Car Car_Lada and Car_Porche, > I would like to make the constructor return the concrete > class like: > > $c = new Car("Lada") To do this you need to overwrite $this in the constructor, and this is only a side-effect in Zend 1.0, and probably won't survive into Zend 2.0. > instead of using > > c= new Car::Factory("Lada") > > However looking at other PEAR classes they all use a static > factory method call to return the concrete object. Which way > is preferred? This is the preferred way. - Stig -- Stig Sæther Bakken <ssb@alltheweb.com> Fast Search & Transfer ASA, Trondheim, Norway

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