Hello all.
A few days ago, I submitted a problem which remains unsolved although
somebody answered to my question. I still have the problem. Can someone
please explain if something is wrong ?
Have a look at this example:
setGeneric("f",valueClass="NULL",def=function(x) standardGeneric("f"))
setMethod("f",signature(x="A"),def=function(x)
{
a = x...@a
cat("nombre :",a,"\n")
}
)
setMethod("f",signature(x="B"),def=function(x)
{
cat("mot :",x...@b,"\n")
callNextMethod()
}
)
a = new("A",a=1)
b = new("B",b="hello",a)
f(a)
f(b)
This last command (f(b)) fails. But remove the 'valueClass="NULL"'
setting in setGeneric or add argument x to the call to callNextMethod
and it will be OK! Isn't it tricky?
Thanks in advance for any help.
Harold
--
*********************************************************
Harold PETITHOMME
Equipe Données et Outils de Prévision (DPREVI/COMPAS/DOP)
Météo France - Direction de la Production
42, avenue G. Coriolis.
31057 Toulouse Cedex
France
Tel : (33/0)5.61.07.82.85
Fax : (33/0)5.61.07.86.09
E-mail : harold.petitho...@meteo.fr
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