Description Methods Author(s) See Also Examples
Use this class as a ‘superclass’ for classes requiring information about versions.
The following are defined; package developers may write additional methods.
new("Versioned", ..., versions=list())
Create a new Versioned-class
instance,
perhaps with additional named version elements (the contents of
versions
) added. Named elements of versions
are
character strings that can be coerced using package_version
, or package_version
instances.
classVersion(object)
Obtain version information about instance object
. See classVersion
.
classVersion(object) <- value
Set version information on instance object
to value
; useful when object
is an instance of a class that contains VersionClass
. See classVersion
.
classVersion(object)["id"] <- value
Create or update version information "id"
on instance object
to value
; useful when object
is an instance of a class that contains VersionClass
. See classVersion
.
show(object)
Default method returns invisible
,
to avoid printing confusing information when your own class does
not have a show
method defined. Use
classVersion(object)
to get or set version information.
Biocore
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | obj <- new("Versioned", versions=list(A="1.0.0"))
obj
classVersion(obj)
A <- setClass("A", contains="Versioned")
classVersion("A")
a <- A()
a # 'show' nothing by default
classVersion(a)
B <- setClass("B", contains="Versioned",
prototype=prototype(new("Versioned",versions=list(B="1.0.0"))))
classVersion("B")
b <- B()
classVersion(b)
classVersion(b)["B"] <- "1.0.1"
classVersion(b)
classVersion("B")
classVersion("B") < classVersion(b)
classVersion(b) == "1.0.1"
C <- setClass("C",
representation(x="numeric"),
contains=("VersionedBiobase"),
prototype=prototype(new("VersionedBiobase", versions=c(C="1.0.1"))))
setMethod("show", signature(object="C"),
function(object) print(object@x))
c <- C(x=1:10)
c
classVersion(c)
|
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