Displaying 2 results from an estimated 2 matches for "versionkey".
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versioned
2010 May 20
1
getSubClasses()?
Hi,
Is there a built in function that returns a character vector of all subclasses of a given superclass?
showClass(Class = "SomeClass") contains the info that I want, but I don't know how to access it.
getSubClasses <- function(superClass) return(setdiff(getClasses(.GlobalEnv), superClass)) wíll only work if the global enviroment isn;t filled with other class definitions.
2006 Apr 21
0
Questions on version arg to setClass and serialized instances
...tended to work? It
appears to want an externalptr, but that seems odd to me.
setClass("FOO", representation(x="numeric"), version="1.2.3")
Error in validObject(.Object) : invalid class
"classRepresentation" object: invalid object for slot "versionKey"
in class "classRepresentation": got class "character", should be
or extend class "externalptr"
The use case I'm interested in is:
A user has a serialized instance foo of class FOO in old.rda. The
class definition lives in FooPkg.
Suppose...