[omniORB] question about object method multiplexor's Implementation & desing

[Juan_M_Casillas@sinvest.es]

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	;Creation-Date="Tue, 22 Feb 2000 09:05:23 +0100"
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   Hello=20
  =20
      Im trying to write a object that multiplex calls to methods in
   other objects.
      the idea is that one object calls a method in the multiplexor
   (this object
      servers methods usign DSI) and then the multiplexor looks for the
   objects
      that have this method (usign internal mechanisms) and then calls
   these
      methods in the objects.
  =20
      But I have some problems, first, when usign DSI, I need to know
   the exact
      number of parameters, their type, and so on, so I can't do blind
   calls to=20
      methods in other objects, because I don't know the interface
   definition.
      How can I do that ? the ORB expects a list (NVList) defined with
   the=20
      right values for the objects when I call
   request->parameters(myNVlist),
      but I don't know the method's arguments, neither their type.
  =20
      So we can do this ?=20
      See some basic Example:
      Objects S1,S2,S3 servers the method test()
      Object A wants to call method test() in S1,S2,S3
      Object M is the multiplexor.
     =20
      So A calls test() in the M interface usign DSI/DII, and says M
   that wants
      to call test() over S1,S2,S3 (this is done calling another method
   on M)
      M process the request, look up S1,S2,S3 usign its internal
      mechanisms to find the object (based in a get/set properties
   scheme)
      and then M calls test() on S1, then on S2, then on S3.=20
  =20
      My problem are:
             I need to know the number of arguments, the return type and=

             the type of the arguments before call
   request->params(NVList)
             so I can use DSI to do the remote method invocation, Is
   this
             possible ? If not, Anybody knows a workarround to do this ?=

     =20
         Anybody knows who can I do this usign Vainilla CORBA (that is
         without using Interface Repository mainly, I want that runs
   with
         the standard distribution omniORB)  ?
     =20
   Thanks for all.
   Kind Regards
  =20
   Juan Manuel Casillas
   Santander Investment
   (systems/technology)=20
   mail: jcasilla.madrid@sinvest.es
  =20
  =20
   
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