Retrieve information about versioned classes
These generic functions return version information for classes
derived from Versioned-class, or
VersionsNull-class for unversioned objects. The
version information is an object of Versions-class.
By default, classVersion has the following behaviors:
classVersion(Versioned-instance)Returns a Versions-class object obtained from the object.
classVersion{"class"}Consults the definition of class and return the current version information, if available.
classVersion(ANY)Return a VersionsNull-class object to indicate no version information available.
By default, the classVersion<- method has the following behavior:
classVersion(Versioned-instance)["id"] <- valueAssign (update or add) value to Versions-instance. value is coerced to a valid version description. see Versions-class for additional access methods.
classVersion(object) classVersion(object) <- value
object |
Object whose version is to be determined, as described above. |
value |
|
classVersion returns an instance of Versions-class
Biocore team
obj <- new("VersionedBiobase")
classVersion(obj)
classVersion(obj)["Biobase"]
classVersion(1:10) # no version
classVersion("ExpressionSet") # consult ExpressionSet prototype
classVersion(obj)["MyVersion"] <- "1.0.0"
classVersion(obj)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.