Call more then one slot or fields in S4 or Reference Classes

Call more then one slot or fields in S4 or Reference Classes

Is it possible to call or set values for more then one slot?
A<-setClass(Class="A",slot=c(name="character",type="character"))
a<-A()
slot(object,c("name","type"),check=T)
Do I have to write own getSlot and setSlot methods? And how to that in R5?
AB <- setRefClass("AB", fields=c(name="character"),
methods=list(getName=AB.getName)
)
AB.getName<-function(object){
object$name
}
a<-AB(name="abc")
AB.getName(a)