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

[Juan_M_Casillas@sinvest.es]

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	;Creation-Date="Fri, 25 Feb 2000 08:36:03 +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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