On Tue, Sep 16, 2014 at 12:09 PM, Staffan Tylen <[email protected]>
wrote:
> Subclass vs Mixinclass:
>
> Is it correct to say that MIXINCLASS is a superset of SUBCLASS with the
> added ability to use the class as an INHERIT class? If correct is there any
> other difference one should be aware of? (I have two classes with SUBCLASS
> currently specified that I want to INHERIT in another class and I therefore
> wish to change SUBCLASS to MIXINCLASS in those classes, but am unsure of
> any side effects.)
>
Yes, that is pretty much the difference. A mixinclass is in all respects a
normal class, so making it a mixin will not change that function. However,
you need to assess whether the class is really suitable for use as a mixin.
To start with you need to be aware of the "baseclass" of the mixin, which
will be the first non-mixin class in the inheritance chain. A class can
only inherit mixins if it is also a subclass of the mixin baseclass. If
your mixins are subclasses of object, for example, the mixin can be
inherited by any class. But you cannot do something like create a mixing
from array and another from directory and use that to try to create a class
that inherits from those.
If your mixin classes depend on init() method calls to be initialized
correctly, you might also run into some issues because the inherit
mechanism will change the superclass relationships used for method
invocations. This might require some special coordination if you require
arguments to be passed to the init methods.
Rick
>
> User admin authority:
>
> I've searched but been unable to find a way to determine of the current
> user has Windows administrator authority. Is this possible?
>
> Many thanks.
> Staffan
>
>
>
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