[TYPO3-core] RFC #9505: Make the caches in TYPO3 use the new caching framework

[Ingo Renner]

Robert Lemke wrote:

Hi Robert,

> well, almost true. With Reflection you can check if a class implements
> a certain interface.

right, but as you mentioned it's slow and this is also why I didn't 
consider it...

> Certainly, reflection is slow, but that's why we have a Reflection Service
> in FLOW3 which caches the reflection information. For determining if a
> class implements a certain interface we have this method:
> 
> public function isClassImplementationOf($className, $interfaceName) {}

sure all cool, but I think that's a bit too much for this simple 
situation. As said I'd just use method_exists($className, $methodName) 
and check whether there's a getInstance().

This is of course not as sophisticated but the chance that it indeed is 
a singleton is quite high I'd say.

But all this of course is also not topic of this RFC ;)

Ingo

-- 
Ingo Renner
TYPO3 Core Developer, Release Manager TYPO3 4.2