On Oct 24, 2012, at 2:14 AM, Johannes Graumann wrote:
Hello,
testclass <- setRefClass(
"testclass",
fields = list(testfield = "logical"),
methods = list(validate=function(){testfield<<-TRUE}))
test <- testclass$new()
test$testfield
logical(0)
test$validate()
test$testfield
[1] TRUE
Works just fine for me.
I would love to be able to do something like
testclass <- setRefClass(
"testclass",
fields = list(testfield = "logical"),
methods = list(validate=function(){
testfield<<-TRUE
.self$lock(testfield)
}))
but am unabel to achieve that. Can anyone point out how to go about
rendering a field immutable after execution of a specific method?
The fact that you used only "lock" in your code and I am unable to
find such a function makes me wonder whether that was an implicit
psuedo-code effort and that you do not know about:
?lockBinding
--
David Winsemius, MD
Alameda, CA, USA
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