Re: Question on Events
"Guijarro, Julio" <[email protected]> Fri, 29 Aug 2008 13:54:53 +0000
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Hi Richard,
See my answers at the end of your message.
Julio
-----Original Message-----
From: smartfrog-developer-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org [mailto:smartfrog-d=
eveloper-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org] On Behalf Of Richard Achmatowicz
Sent: 06 August 2008 18:10
To: smartfrog-developer-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: [Smartfrog-developer] Question on Events
Hello
A question on the use of events in the SF workflow. Suppose I have a
configuration of components which looks like this:
c1 extends Parallel {
p1 extends ... {...}
}
c2 extends Parallel {
p2 extends ... {...}
p3 extends ... {...}
}
}
sfConfig extends c1 ;
Here are some of the things I would like to do with events:
(i) send an event from p1 to p3 only
(ii) send an event from p1 to all other leaf components {p2, p3}
(iii) send an event from p1 to all components {c1, c2, p2, p3}
I know I can send an event from a component using a sub-component
EventSend. I know I can handle an event using a subcomponent OnEvent.
For example, the following code allows me to send an event from p1 to p3
(I added in a delay before sending to that the OnEvent components have a
chance to start):
c1 extends Parallel {
p1 extends Sequence {
// set up a delay to allow event handler to initialise
delay extends DoNothing {
time 2000 ;
}
// send an event to p3
sender extends EventSend {
sendTo: fred LAZY ATTRIB c2:p3 ;
event "apache" ;
}
}
c2 extends Parallel {
p2 extends OnEvent {
singleEvent false ;
// event handlers
otherwise extends LAZY DoNothing {
time 1000 ;
message "hello from p2:otherwise" ;
}
}
p3 extends OnEvent {
singleEvent false ;
// event handlers
apache extends LAZY DoNothing {
time 1000 ;
message "hello from Apache" ;
}
otherwise extends LAZY DoNothing {
time 1000 ;
message "hello from p3:otherwise" ;
}
}
}
}
sfConfig extends c1 ;
One thing i'm not clear on is the use of registerWith. It appears that
even if I don't make use of registerWith in this example, the events
manage to reach their destinations (specified with sentTo).
I also tried to send an event to p2 and p3 by sending it to c2, but that di=
dn't work.
>From the manual:
"Both components have LAZY sendTo and registerWith components. These can co=
ntain late-binding links to other components that implement the event frame=
work and define the graph of event forwarding. The registration can be done=
in both directions; senders can choose recipients while and receivers can =
choose who to listen to. This provides a great deal of flexibility in provi=
ding the configuration for the event-forwarding graph."
This is equivalent to push / pull. A component will send an event to the co=
mponents that are specified in sendTo but there can be other component that=
chose to receive the event as well for example in your case you could have=
P2 and P3 registered with C2 so that the received the event that you send.
Therefore, with an example in code:
(ii) send an event from p1 to all other leaf components {p2, p3}
// send an event to p2 p3
sender3 extends EventSend {
sendTo extends {
p2Sender LAZY ATTRIB c2:p2;
p3Sender LAZY ATTRIB c2:p3;
}
event "otherwise" ;
}
(iii) send an event from p1 to all components {c1, c2, p2, p3}
The same applies, just add a many components as you want.
The other option is either to make c1 to send to everyone or register all t=
he other (c2,p2,p3) with c1 and then send the event to 1
Are there ways to make use of registerWith in order to implement the use
cases (ii) and (iii)?
For example case (ii) you would need to add the following to p2 and p3:
registerWith extends DATA {
s1 LAZY ROOT:c2;
}
Note that a component can register with as many other components as it want=
s. You can also programmatically register and deregister components at will=
.
You modified example could be something like this (also find it attached to=
this message):
include "org/smartfrog/components.sf"
#include "org/smartfrog/sfcore/workflow/components.sf"
delay1s extends DoNothing {
time 1000 ;
}
// set up a delay to allow event handler to initialise
delay2s extends DoNothing {
time (2 * 1000) ;
}
c1 extends Parallel {
p1 extends Sequence {
// set up a delay to allow event handler to initialise
-- extends delay2s;
// send an event to p3
sender1 extends EventSend {
sendTo: fred LAZY ATTRIB c2:p3 ;
event "apache" ;
}
-- extends delay1s;
// send an event to p3 (otherwise)
sender2 extends EventSend {
sendTo: fred LAZY ATTRIB c2:p3 ;
event "otherwise" ;
}
-- extends delay1s;
// send an event to p2 p3
sender3 extends EventSend {
sendTo extends {
p2Sender LAZY ATTRIB c2:p2;
p3Sender LAZY ATTRIB c2:p3;
}
event "otherwise" ;
}
-- extends delay1s;
// send an event to p2 p3 through c2
sender4 extends EventSend {
sendTo extends {
p3Sender LAZY ATTRIB c2;
}
event "otherwise" ;
}
-- extends delay1s {time (5 * 1000);}
}
c2 extends Parallel {
p2 extends OnEvent {
registerWith extends DATA {
s1 LAZY ROOT:c2;
}
singleEvent false ;
// event handlers
otherwise extends LAZY DoNothing {
time 1000 ;
message "hello from p2:otherwise" ;
}
}
p3 extends OnEvent {
registerWith extends DATA {
s1 LAZY ROOT:c2;
}
singleEvent false ;
//registerWith LAZY PARENT;
// event handlers
apache extends LAZY DoNothing {
time 1000 ;
message "hello from Apache" ;
}
otherwise extends LAZY DoNothing {
time 1000 ;
message "hello from p3:otherwise" ;
}
}
}
}
sfConfig extends c1 ;
This event system is pretty simple and easy to extend for more complex situ=
ations you could have a look a our new orchestration engine that is "model =
based" instead of "worflow based".
http://smartfrog.svn.sourceforge.net/viewvc/smartfrog/trunk/core/smartfrog/=
docs/SFOrchestration1_2.pdf
In something is not clear just let me know.
Best regards,
Julio Guijarro
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<p class=3DMsoPlainText>Hi Richard,<o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>See my answers at the end of your message.<o:p></o:=
p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>Julio<o:p></o:p></p>
<p class=3DMsoPlainText><a name=3D"_MailEndCompose"><o:p> </o:p></a></=
p>
<p class=3DMsoPlainText><span lang=3DEN-US>-----Original Message-----<br>
From: smartfrog-developer-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
[mailto:smartfrog-developer-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org] On Behalf Of Ric=
hard
Achmatowicz<br>
Sent: 06 August 2008 18:10<br>
To: smartfrog-developer-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org<br>
Subject: [Smartfrog-developer] Question on Events</span><o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>Hello<o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>A question on the use of events in the SF workflow.
Suppose I have a<o:p></o:p></p>
<p class=3DMsoPlainText>configuration of components which looks like this:<=
o:p></o:p></p>
<p class=3DMsoPlainText>c1 extends Parallel {<o:p></o:p></p>
<p class=3DMsoPlainText> p1 extends ... {...}<o:p></o:p></p>
<p class=3DMsoPlainText> }<o:p></o:p></p>
<p class=3DMsoPlainText> c2 extends Parallel {<o:p></o:p></p>
<p class=3DMsoPlainText> p2 extends ... {...}<o:p></o:p><=
/p>
<p class=3DMsoPlainText> p3 extends ... {...}<o:p></o:p><=
/p>
<p class=3DMsoPlainText> }<o:p></o:p></p>
<p class=3DMsoPlainText>}<o:p></o:p></p>
<p class=3DMsoPlainText>sfConfig extends c1 ;<o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>Here are some of the things I would like to do with
events:<o:p></o:p></p>
<p class=3DMsoPlainText>(i) send an event from p1 to p3 only<o:p></o:p></p>
<p class=3DMsoPlainText>(ii) send an event from p1 to all other leaf compon=
ents
{p2, p3}<o:p></o:p></p>
<p class=3DMsoPlainText>(iii) send an event from p1 to all components {c1, =
c2,
p2, p3}<o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>I know I can send an event from a component using a
sub-component<o:p></o:p></p>
<p class=3DMsoPlainText>EventSend. I know I can handle an event using a
subcomponent OnEvent.<o:p></o:p></p>
<p class=3DMsoPlainText>For example, the following code allows me to send a=
n
event from p1 to p3<o:p></o:p></p>
<p class=3DMsoPlainText>(I added in a delay before sending to that the OnEv=
ent
components have a<o:p></o:p></p>
<p class=3DMsoPlainText>chance to start):<o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>c1 extends Parallel {<o:p></o:p></p>
<p class=3DMsoPlainText> p1 extends Sequence {<o:p></o:p>=
</p>
<p class=3DMsoPlainText> // set up a delay to=
allow
event handler to initialise<o:p></o:p></p>
<p class=3DMsoPlainText> delay extends DoNoth=
ing {<o:p></o:p></p>
<p class=3DMsoPlainText> time 200=
0 ;<o:p></o:p></p>
<p class=3DMsoPlainText> }<o:p></o:p></p>
<p class=3DMsoPlainText> // send an event to =
p3<o:p></o:p></p>
<p class=3DMsoPlainText> sender extends Event=
Send {<o:p></o:p></p>
<p class=3DMsoPlainText> sendTo: =
fred
LAZY ATTRIB c2:p3 ;<o:p></o:p></p>
<p class=3DMsoPlainText> event
"apache" ;<o:p></o:p></p>
<p class=3DMsoPlainText> }<o:p></o:p></p>
<p class=3DMsoPlainText> }<o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText> c2 extends Parallel {<o:p></o:p>=
</p>
<p class=3DMsoPlainText> p2 extends OnEvent {=
<o:p></o:p></p>
<p class=3DMsoPlainText> singleEv=
ent
false ;<o:p></o:p></p>
<p class=3DMsoPlainText> // event
handlers<o:p></o:p></p>
<p class=3DMsoPlainText> otherwis=
e
extends LAZY DoNothing {<o:p></o:p></p>
<p class=3DMsoPlainText> &nb=
sp;
time 1000 ;<o:p></o:p></p>
<p class=3DMsoPlainText> &nb=
sp;
message "hello from p2:otherwise" ;<o:p></o:p></p>
<p class=3DMsoPlainText> }<o:p></=
o:p></p>
<p class=3DMsoPlainText> }<o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText> p3 extends OnEvent {=
<o:p></o:p></p>
<p class=3DMsoPlainText> singleEv=
ent
false ;<o:p></o:p></p>
<p class=3DMsoPlainText> // event
handlers<o:p></o:p></p>
<p class=3DMsoPlainText> apache e=
xtends
LAZY DoNothing {<o:p></o:p></p>
<p class=3DMsoPlainText> &nb=
sp;
time 1000 ;<o:p></o:p></p>
<p class=3DMsoPlainText> &nb=
sp;
message "hello from Apache" ;<o:p></o:p></p>
<p class=3DMsoPlainText> }<o:p></=
o:p></p>
<p class=3DMsoPlainText> otherwis=
e
extends LAZY DoNothing {<o:p></o:p></p>
<p class=3DMsoPlainText> &nb=
sp;
time 1000 ;<o:p></o:p></p>
<p class=3DMsoPlainText> &nb=
sp;
message "hello from p3:otherwise" ;<o:p></o:p></p>
<p class=3DMsoPlainText> }<o:p></=
o:p></p>
<p class=3DMsoPlainText> }<o:p></o:p></p>
<p class=3DMsoPlainText> }<o:p></o:p></p>
<p class=3DMsoPlainText>}<o:p></o:p></p>
<p class=3DMsoPlainText>sfConfig extends c1 ;<o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>One thing i'm not clear on is the use of registerWi=
th. It
appears that<o:p></o:p></p>
<p class=3DMsoPlainText>even if I don't make use of registerWith in this ex=
ample,
the events<o:p></o:p></p>
<p class=3DMsoPlainText>manage to reach their destinations (specified with
sentTo).<o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>I also tried to send an event to p2 and p3 by sendi=
ng it
to c2, but that didn't work.<o:p></o:p></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3Dwestern><span style=3D'color:#943634'>From the manual: <o:p></o:=
p></span></p>
<p class=3Dwestern><span style=3D'color:#943634'>“Both components hav=
e </span><span
style=3D'font-size:9.0pt;font-family:"Lucida Console";color:#943634'>LAZY</=
span><span
style=3D'color:#943634'> </span><span style=3D'font-size:9.0pt;font-family:=
"Lucida Console";
color:#943634'>sendTo</span><span style=3D'color:#943634'> and </span><span
style=3D'font-size:9.0pt;font-family:"Lucida Console";color:#943634'>regist=
erWith</span><span
style=3D'color:#943634'> components. These can contain late-binding links t=
o
other components that implement the event framework and define the graph of
event forwarding. The registration can be done in both directions; senders =
can
choose recipients while and receivers can choose who to listen to. This
provides a great deal of flexibility in providing the configuration for the
event-forwarding graph.”<o:p></o:p></span></p>
<p class=3Dwestern><span style=3D'color:#943634'>This is equivalent to push=
/ pull.
A component will send an event to the components that are specified in send=
To
but there can be other component that chose to receive the event as well fo=
r
example in your case you could have P2 and P3 registered with C2 so that th=
e
received the event that you send.<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>Therefore, with an ex=
ample in
code:<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>(ii) send an event fr=
om p1 to
all other leaf components {p2, p3}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
// send an event to p2 p3<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
sender3 extends EventSend {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
sendTo extends {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
p2Sender LAZY ATTRIB c2:p2;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
p3Sender LAZY ATTRIB c2:p3;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
event "otherwise" ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>(iii) send an event from p1 to all components {c1, =
c2,
p2, p3}<o:p></o:p></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>The same applies, jus=
t add a
many components as you want.<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>The other option is e=
ither to
make c1 to send to everyone or register all the other (c2,p2,p3) with c1 an=
d then
send the event to 1<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText>Are there ways to make use of registerWith in order=
to
implement the use<o:p></o:p></p>
<p class=3DMsoPlainText>cases (ii) and (iii)?<o:p></o:p></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>For example case (ii)=
you
would need to add the following to p2 and p3:<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
registerWith extends DATA {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
s1 LAZY ROOT:c2;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>Note that a component=
can
register with as many other components as it wants. You can also programmat=
ically
register and deregister components at will. <o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>You modified example =
could be
something like this (also find it attached to this message):<o:p></o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>include
"org/smartfrog/components.sf" <o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>#include
"org/smartfrog/sfcore/workflow/components.sf" <o:p></o:p></span><=
/p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
delay1s extends DoNothing {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
time 1000 ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
// set up a delay to allow event handler to initialise<o:p></o:p></span></p=
>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
delay2s extends DoNothing {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
time (2 * 1000) ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>c1 extends Parallel {=
<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> <o=
:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> p1=
extends
Sequence {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp; <o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
// set up a delay to allow event handler to initialise<o:p></o:p></span></p=
>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
-- extends delay2s;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
// send an event to p3<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
sender1 extends EventSend {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
sendTo: fred LAZY ATTRIB c2:p3 ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
event "apache" ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
-- extends delay1s;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
// send an event to p3 (otherwise)<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
sender2 extends EventSend {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
sendTo: fred LAZY ATTRIB c2:p3 ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
event "otherwise" ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
-- extends delay1s;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
// send an event to p2 p3<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
sender3 extends EventSend {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
sendTo extends {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
p2Sender LAZY ATTRIB c2:p2;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
p3Sender LAZY ATTRIB c2:p3;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
event "otherwise" ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
-- extends delay1s;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
// send an event to p2 p3 through c2<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
sender4 extends EventSend {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
sendTo extends {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
p3Sender LAZY ATTRIB c2;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
event "otherwise" ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
-- extends delay1s {time (5 * 1000);}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> }<=
o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> c2=
extends
Parallel { <o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
p2 extends OnEvent {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
registerWith extends DATA {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
s1 LAZY ROOT:c2;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> <o=
:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
singleEvent false ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
// event handlers<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
otherwise extends LAZY DoNothing {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
time 1000 ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
message "hello from p2:otherwise" ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
p3 extends OnEvent {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
registerWith extends DATA {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
s1 LAZY ROOT:c2;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
singleEvent false ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
//registerWith LAZY PARENT;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
// event handlers<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
apache extends LAZY DoNothing {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
time 1000 ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
message "hello from Apache" ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
otherwise extends LAZY DoNothing {<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
time 1000 ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
message "hello from p3:otherwise" ;<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> &nb=
sp;
}<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'> }<=
o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>}<o:p></o:p></span></=
p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>sfConfig extends c1 ;=
<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>This event system is =
pretty
simple and easy to extend for more complex situations you could have a look=
a
our new orchestration engine that is “model based” instead of &=
#8220;worflow
based”.<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><a
href=3D"http://smartfrog.svn.sourceforge.net/viewvc/smartfrog/trunk/core/sm=
artfrog/docs/SFOrchestration1_2.pdf">http://smartfrog.svn.sourceforge.net/v=
iewvc/smartfrog/trunk/core/smartfrog/docs/SFOrchestration1_2.pdf</a><o:p></=
o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>In something is not c=
lear
just let me know.<o:p></o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>Best regards,<o:p></o=
:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'>Julio Guijarro<o:p></=
o:p></span></p>
<p class=3DMsoPlainText><span style=3D'color:#943634'><o:p> </o:p></sp=
an></p>
<p class=3DMsoPlainText><o:p> </o:p></p>
<p class=3DMsoPlainText>---------------------------------------------------=
----------------------<o:p></o:p></p>
<p class=3DMsoPlainText>This SF.Net email is sponsored by the Moblin Your M=
ove
Developer's challenge<o:p></o:p></p>
<p class=3DMsoPlainText>Build the coolest Linux based applications with Mob=
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SDK & win great prizes<o:p></o:p></p>
<p class=3DMsoPlainText>Grand prize is a trip for two to an Open Source eve=
nt
anywhere in the world<o:p></o:p></p>
<p class=3DMsoPlainText>http://moblin-contest.org/redirect.php?banner_id=3D=
100&url=3D/<o:p></o:p></p>
<p class=3DMsoPlainText>_______________________________________________<o:p=
></o:p></p>
<p class=3DMsoPlainText>Smartfrog-developer mailing list<o:p></o:p></p>
<p class=3DMsoPlainText>Smartfrog-developer-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org<o:p></o:p=
></p>
<p class=3DMsoPlainText>https://lists.sourceforge.net/lists/listinfo/smartf=
rog-developer<o:p></o:p></p>
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