Determine whether object or class contains versioning information
This generic function checks to see whether Versioned-class information
is present. When the argument to isVersioned is a character
string, the prototype of the class corresponding to the string is
consulted.
By default, isVersioned has the following behaviors:
isVersioned(Versioned-instance)Returns TRUE when the instance have version information.
isCurrent("class-name")Returns TRUE when the named class extends Versioned-class.
isVersioned(ANY)Returns FALSE
isVersioned(object)
object |
Object or class name to check for version information, as described above. |
isVersioned returns a logical indicating whether version information is present.
Biocore team
obj <- new("VersionedBiobase")
isVersioned(obj)
isVersioned(1:10) # FALSE
A <- setClass("A", contains="VersionedBiobase",
prototype=prototype(new("VersionedBiobase", versions=c(A="1.0.0"))))
a <- A()
isVersioned(a)
removeClass("A")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.