Hi Larz,
On Wed, May 11, 2011 at 4:02 AM, Lars Schultz <[email protected]> wrote:
> Am 10.05.2011 16:53, schrieb Martin Scotta:
>>
>> Annotations are not required, you add them if you want to.
>
> Yes. sure. But I am sure that certain Annotations must be combined to
> unleash their purpose, no? There is no validation for that, correct?
>
The patch does all compile time and runtime validations, so your
assertion is not valid.
>> Also they can be used not only with classes. You can annotate methods,
>> members, parameters (I'm not sure about the RFC scope)
>
> With the interface approach you can annotate classes, methods, members and
> parameters, depending on how you build it, no? Annotating functions by
> themselves...is that really an issue? Since they're mostly stateless why
> would they need meta-data?
>
>> with "extends" you inherit implementation
>> with "traits" you inherit code
>> With annotations you inherit behavior.
>
> inheriting behaviour is just a special case of inheriting "code" as in
> traits, no?
>
>> you cannot do this with interfaces
>> <Annotation(param=Value)> class Class { }
>
> interface Annotation { function getParam(); }
>
>> and how do you apply an interface to a method?
>> <Deprecated> function getSomething() { }
>
> interface Annotation {
> function getMethodAnnotation($method){
> switch( $method ) {
> case 'getSomething': return array('deprecated');
> }
> }
> }
>
>> All the framework/library boiler-plate should be reduced to minimum.
>
> I can't argue with that.
>
> What I just noticed is that simple examples (key=>value or even just
> keywords) are indeed concise and I could imagine using it this way. But for
> that we have docblocs. But as soon as you go into more complex structures,
> more than key=>value which guilherme keeps arguing is so essential to the
> Annotations and is also why we can't use docblocks, it gets unreadable and
> especially for maintaining state within meta-data, I'd always use
> PHP-Interfaces over Annotations.
>
If you tell me that you're doing this:
class User implements PersistenceEntity
{
// ...
}
You're coupling your Entity to an individual persistence tool.
This means you have a huge problem, because you're coupling things
that should be separated. This breaks the clean separation of concerns
that OO brings to us.
>
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--
Guilherme Blanco
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