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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Svetlana, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I think this is the same problem with “Ravenclaw
frames” and “galaxy frames” but on the output side. Basically
what you’re doing in the code below is constructing a galaxy frame.
Instead ravenclaw expects a single string in that galaxy frame which contains
the information in a single string in the “string Ravenclaw frame”
format… <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>If this message is too cryptic, let me
know and I can send you more details,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Dan<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
ravenclaw-developers-bounces@LOGANBERRY.srv.cs.cmu.edu
[mailto:ravenclaw-developers-bounces@LOGANBERRY.srv.cs.cmu.edu] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Svetlana Stenchikova<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, October 10, 2006
5:41 PM<br>
<b><span style='font-weight:bold'>To:</span></b>
ravenclaw-developers@cs.cmu.edu<br>
<b><span style='font-weight:bold'>Subject:</span></b> RavenclawDev: returning
frame from a back end</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hi,<br>
<br>
How should a back-end function of a ravenclaw dialog manager format a
frame?<br>
<br>
For example, I am expecting to get a "error" parameter from:<br>
<br>
CALL("java_be.add_event <event_add error>backend_error")<br>
<br>
backend_error is declared as:<br>
BOOL_SYSTEM_CONCEPT(backend_error)<br>
<br>
In the java back-end:<br>
<br>
public GFrame serverOpAddEvent(GFrame f) {<br>
...<br>
<br>
GFrame eventAdded = new Clause("event_add");<br>
<br>
eventAdded.setProperty("error",
"false");<br>
<br>
return eventAdded;<br>
}<br>
<br>
<br>
But the backend_error in DM does not get initialized. <br>
<br>
Is there a particular way that the return GFrame from the backend server has to
be generated?<br>
<br>
Thank you,<br>
Svetlana<o:p></o:p></span></font></p>
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