Hi Simas:
On 22 Nov 2010, at 13:47, Simas Toleikis wrote:
> Would it work if instance is saved inside a local static var like:
>
> public static function getInstance() {
>
> static $instance = NULL;
>
> if (is_null($instance)) {
>$instance = new self();
> }
>
> return $instance;
> }
ht
Hi Sebastian,
This is not really a good example as the getInstance() method alone is
> not sufficient for a reusable implementation of the Singleton pattern.
>
Yes, it was just a pseudo-code and not a true singleton implementation.
> A trait for a reusable implementation of the Singleton pa
Am 16.11.2010 18:46, schrieb Simas Toleikis:
> p.s. a Singleton-Trait implementation could look like:
>
> trait Singleton {
> public static function getInstance() { ... }
> }
>
> class Child extends Parent {
> use Singleton;
> }
>
> Child::getInstance();
This is not really a good example a
Hi Simas:
Thanks for sending me the test cases.
I checked them in, and surprise surprise: it actually was already completely
implemented. I didn't had to touch any code...
So the missing bit was being more explicit in the RFC.
I added a section and an example based on your Singleton code.
Now I
Hi Simas:
On 17 Nov 2010, at 07:32, Simas Toleikis wrote:
> Alright then, I am sure someone will find more uses for static methods in
> Traits like factories/utilities (especially if traits can be made to work
> with late static binding).
>
> I assume this will be implemented in one way or anothe
Hi Ferenc,
for reusable singleton pattern with php 5.3
> http://www.slideshare.net/fabpot/design-patternrevisitedphp53
> slide 11 and 12
>
As Tom already pointed out - there is that lock-down of your parent(s) to
singletons with this type of implementation and there are other shortcomings
when u
Hi Stefan,
Following the motto 'it is just compiler assisted copy and paste' I think
> it should be implemented.
>
Alright then, I am sure someone will find more uses for static methods in
Traits like factories/utilities (especially if traits can be made to work
with late static binding).
I ass
On Tue, Nov 16, 2010 at 3:55 PM, Ferenc Kovacs wrote:
>
> for reusable singleton pattern with php 5.3
> http://www.slideshare.net/fabpot/design-patternrevisitedphp53
> slide 11 and 12
>
> Tyrael
>
The problem with the solution presented in the slides is that it
limits every singleton class to onl
On Tue, Nov 16, 2010 at 6:46 PM, Simas Toleikis wrote:
> Hello,
>
> I was just skimming through Traits RFC document on the wiki trying to find
> a
> practical use for them. The first thing that comes to my mind is a
> Singleton
> implementation - this is where I found myself literally "copying" m
Hi Simas:
On 16 Nov 2010, at 18:46, Simas Toleikis wrote:
> The first thing that comes to my mind is a Singleton
> implementation - this is where I found myself literally "copying" most of
> the code in the past. As far as I know there is no way to implement this
> pattern properly in PHP without
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