Information Technology Reference
In-Depth Information
which slot in the child shou
advanced Webbles have the
As soon as such a comm
the communication on its ow
have any value change in a
child that something have c
message in order to retrieve
update concerns them and t
is then within the scope of
the child slot that is altered
'Set' message to the connect
the value change. Internally
slot reaction method which
even start changing other s
only have one slot channel
But there are of course way
specialized Webbles that w
tion is going on between the
uld communicate with each other, but there are cases wh
e ability to handle such connecting on its own.
munication channel is configured, the Webble will han
wn by three ways of control methods. Whenever the par
any slot it will fire the 'Update' message, informing ev
changed, it is then the task of the child to use the 'Gim
e the value of any specific slot from the parent to see if
the value of the slot they care for has changed. After tha
the child to react upon the value collected. If instead i
d it will transfer that alteration over to the parent with
ted parent slot, which in turn may make the parent react
y, both in the View and the Model, all slot changes fir
sometimes does nothing and in other cases do a lot, ma
slot values. In 'normal' slot communication a Webble
l open with each relative (parent or children) at one ti
ys to set up multiple channels by using for example so
were built to handle that. A similar structure of communi
e Model and the View within the Webble itself.
here
ndle
rent
very
mme'
f the
at, it
it is
the
t on
re a
aybe
can
me.
ome
ica-
Fig. 3.
Web
bble structure hierarchy and slot communication
A Webble can be dupli
Model with its original. In
another form of internal co
any parent/child relationshi
then not just slot values but
The Model works on its
the Views existence in orde
View on the other hand ca
since it has complete acce
developer of the Webble an
A Webble is not only def
an even more important pa
file which describes each p
cated freely, either as a separate entity or by sharing
the latter case, a duplicate is called a shared copy. Thi
ommunication between Webbles, which does not requ
ip, though it only affects the Model part of the Webble
t the Model as a whole.
own and does not care about the View, but it is aware
er to call the Update method for all Views connected. T
an take the model into as much consideration as it wa
ss to its reference, this is configured mainly by the c
nd does not concern ordinary Internet users.
fined as described above with programming code. Actua
art of the Webble is the Webble definition or configurat
part in each particular individual Webble. Such a Web
the
is is
uire
and
e of
The
ants,
ode
ally
tion
bble
