...
Note
...
that
...
in
...
this
...
example,
...
there
...
is
...
no
...
mixed
...
class
...
DessertWax
...
(derived
...
from
...
DessertTopping
...
and
...
FloorWaxMixin
...
).
...
The
...
mixed
...
class
...
is
...
created
...
by
...
the
...
ObjectFactory
...
as
...
soon
...
as
...
needed,
...
upon
...
first
...
instantiation
...
of
...
our
...
mixed
...
class
...
for
...
the
...
dessert
...
wax.
...
Looking
...
at
...
the
...
type
...
(
...
GetType
...
()
...
of
...
the
...
instance
...
from
...
ObjectFactory
...
will
...
unearth
...
a
...
type
...
name
...
with
...
a
...
GUID,
...
something
...
like
...
| Code Block |
|---|
DessertWax.Uses.DessertTopping_Mixed_9e0cada34a474c1082d01c8769d54e8b
{code}
|
This
...
complicated
...
name
...
invented
...
by
...
the
...
ObjectFactory
...
is
...
not
...
important,
...
however,
...
because
...
you
...
are
...
not
...
supposed
...
to
...
ever
...
use
...
it
...
in
...
your
...
source
...
code.
...
The
...
class
...
only
...
gives
...
the
...
.NET
...
run-time
...
something
...
to
...
work
...
with,
...
something
...
to
...
instantiate.
...
This
...
derived
...
class
...
is
...
cached;
...
if
...
you
...
instantiate
...
the
...
mixed
...
dessert
...
topping/floor
...
wax
...
again,
...
the
...
ObjectFactory
...
will
...
pull
...
it
...
from
...
the
...
cache.
...
In
...
other
...
words,
...
in
...
| Code Block |
|---|
var myOtherDessertWax = ObjectFactory.Create<DessertTopping> (ParamList.Empty);
{code}
{{myOtherDessertWax}} will have the same type as {{myDessertWax}} -- {{ |
myOtherDessertWax will have the same type as myDessertWax – DessertWax.Uses.DessertTopping_Mixed_9e0cada34a474c1082d01c8769d54e8b
...
for
...
this
...
particular
...
run
...
of
...
the
...
program.
...
(The
...
GUID
...
will
...
change
...
from
...
run
...
to
...
run,
...
however.)
...
Since
...
the
...
mixed
...
class
...
you
...
will
...
eventually
...
use
...
at
...
run-time
...
is
...
derived
...
(sub-classed)
...
from
...
the
...
target
...
class
...
and
...
the
...
mixin
...
classes,
...
you
...
can't
...
extend
...
a
...
sealed
...
class
...
or
...
primitive
...
types
...
like
...
int
...
with
...
re-motion
...
mixin.
...