How to instanciate the html class

jaytraxx 2007-12-21 10:04:58 UTC #1

Hi all,

I wonder what’s the best way to get an instance of the html class. The class provides a method “singleton” with the example:

$my_html =& html::singleton();

Two questions on that:

does this get autoloaded?
should I omit the reference operator in php5?

Thanks in advance
Bye
Christian

Lars_Kneschke-2 2007-12-21 10:19:07 UTC #2

“jaytraxx” christian@jaytraxx.de schrieb:

Hi all,

I wonder what’s the best way to get an instance of the html class. The
class
provides a method “singleton” with the example:

$my_html =& html::singleton();

Two questions on that:

does this get autoloaded?
I don’t know.

should I omit the reference operator in php5?
I think so. That’s not needed for PHP5 anymore.

–
Lars Kneschke
CTO OfficeSpot.Net
Metaways Infosystems GmbH
Pickhuben 2-4, D-20457 Hamburg

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Fossil2 2007-12-21 12:44:36 UTC #3

Hallo Christian,

jaytraxx schrieb:

Hi all,

I wonder what’s the best way to get an instance of the html class. The class
provides a method “singleton” with the example:

$my_html =& html::singleton();

Two questions on that:

does this get autoloaded?

Ralf has submitted an _autoload in common_functions.php. It contains
suggested names and paths. Miles Lott is testing naming conventions in
his xmlrpc . We have an extended version ,which is not yet committed,
intended to support migration. We have a trunk running without any
includes of requires. There has no testing been done on setters and
getters… I can let you have a copy.
“html::singelton” is a whole different “cotton picking bag o’ worms”.
The Singelton Pattern has a number of weaknesses. In particular
environments it has to be mutex protected. At the moment it isn’t. Ralf
has added a draft exception handler. There is a suggestion that we
should try to build a protection class possibly based on Lamports’
Bakery Algorithm (Take a ticket and wait until your called). Should race
condition occur this can be passed to the exception handler.
“html::singelton” would be a candidate for such a rewrite.

Regards Nigel

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Ralf_Becker_6 2007-12-21 16:29:53 UTC #4

Hi,

Lars Kneschke schrieb:

“jaytraxx” christian@jaytraxx.de schrieb:

Hi all,

I wonder what’s the best way to get an instance of the html class. The
class provides a method “singleton” with the example:

$my_html =& html::singleton();

Two questions on that:

does this get autoloaded?
I don’t know.

Sure it does, the singleton in the html class, is simply a static
method, which check’s if the html class is instanciated in it’s usual
place ($GLOBALS[‘egw’]->html), instanciates it there if not, and returns
it’s reference.

should I omit the reference operator in php5?
I think so. That’s not needed for PHP5 anymore.

Nope, by the time I put it there, we still had php4 compatibility. In
php5 it serves no purpose.

Ralf

Ralf Becker
eGroupWare Training & Support ==> http://www.egroupware-support.de
Outdoor Unlimited Training GmbH [www.outdoor-training.de]
Handelsregister HRB Kaiserslautern 3587
Geschäftsführer Birgit und Ralf Becker
Leibnizstr. 17, 67663 Kaiserslautern, Germany
Telefon +49 (0)631 31657-0

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jaytraxx 2007-12-21 16:53:43 UTC #5

Thx all for giving your responds. Now I know what to do …

Bye
Christian

Ralf Becker-3:

Hi,

Lars Kneschke schrieb:

“jaytraxx” christian@jaytraxx.de schrieb:

Hi all,

I wonder what’s the best way to get an instance of the html class. The
class provides a method “singleton” with the example:

$my_html =& html::singleton();

Two questions on that:

does this get autoloaded?
I don’t know.

Sure it does, the singleton in the html class, is simply a static
method, which check’s if the html class is instanciated in it’s usual
place ($GLOBALS[‘egw’]->html), instanciates it there if not, and returns
it’s reference.

should I omit the reference operator in php5?
I think so. That’s not needed for PHP5 anymore.

Nope, by the time I put it there, we still had php4 compatibility. In
php5 it serves no purpose.

Ralf

Ralf Becker
eGroupWare Training & Support ==> http://www.egroupware-support.de
Outdoor Unlimited Training GmbH [www.outdoor-training.de]
Handelsregister HRB Kaiserslautern 3587
Geschäftsführer Birgit und Ralf Becker
Leibnizstr. 17, 67663 Kaiserslautern, Germany
Telefon +49 (0)631 31657-0

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Milosch 2007-12-21 19:24:04 UTC #6

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jaytraxx 2007-12-21 20:05:13 UTC #7

Hi Miles,

just renaming the notifications-classes to achieve autoloading … AFAIK
it works.

Bye
Christian

Miles Lott schrieb:

For what it’s worth, I was able to remove all CreateObject calls in
xml-rpc here using the current __autoload() function in trunk. I got a
bit carried away and started working on the rest of the api. But, I
should be able to commit the xml-rpc changes at least which did help
performance a little bit without breaking anything. All of the
self-tests work as before, I mean.

Nigel John Vickers wrote:

Hallo Christian,

jaytraxx schrieb:

Hi all,

I wonder what’s the best way to get an instance of the html class. The class
provides a method “singleton” with the example:

$my_html =& html::singleton();

Two questions on that:

does this get autoloaded?

Ralf has submitted an _autoload in common_functions.php. It contains
suggested names and paths. Miles Lott is testing naming conventions in
his xmlrpc .

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Defy all challenges. Microsoft® Visual Studio 2005.
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