Documenting R.oo classes/methods with Roxygen

Question

Could someone point me to a good example of documenting R.oo classes/methods with Roxygen? In R.oo, classes/methods are created by calls to setConstructorS3() and setMethodS3(), so there is no function to document per-se. Do you simply create standard Roxygen function documentation, but place it on top of a NULL statement?

Answer 1

I think,

1. @usage are needed.
2. A dot-dot-dot argument is needed in the MyMethod.ClassName function for S3 generic/method consistency.
3. Not #' @export MyMethod.ClassName but rather #' @S3method MyMethod ClassName?

An example code:

#' Title.  More Info.
#'
#' @usage MyMethod(...)
#' @param this this.
#' @param someParam Param info.
#' @param ... other arguments.
#'
#' @rdname   MyMethod
#' @export   MyMethod
#' @name     MyMethod
NULL

#' @usage \method{MyMethod}{ClassName}(this, someParam, ...)
#' @return MyMethod.ClassName:
#' \code{NULL}
#'
#' @rdname   MyMethod
#' @S3method MyMethod ClassName
#' @name     MyMethod.ClassName
setMethodS3("MyMethod", "ClassName", appendVarArgs = FALSE, 
function(this, someParam, ...) {
  NULL
})