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\name{isVersioned}
\alias{isVersioned}
\alias{isVersioned,ANY-method}
\alias{isVersioned,character-method}
\title{Determine whether object or class contains versioning information}
\description{
This generic function checks to see whether \code{\link{Versioned-class}} information
is present. When the argument to \code{isVersioned} is a character
string, the prototype of the class corresponding to the string is
consulted.
By default, \code{isVersioned} has the following behaviors:
\describe{
\item{\code{isVersioned(Versioned-instance)}}{Returns \code{TRUE} when the instance have version information.}
\item{\code{isCurrent("class-name")}}{Returns \code{TRUE} when the named class extends \code{\link{Versioned-class}}.}
\item{\code{isVersioned(ANY)}}{Returns \code{FALSE}}
}
}
\usage{
isVersioned(object)
}
\arguments{
\item{object}{Object or class name to check for version information, as described above.}
}
\value{
\code{isVersioned} returns a logical indicating whether version information is present.
}
\author{Biocore team}
\seealso{\code{\link{Versions-class}}}
\examples{
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")
}
\keyword{manip}
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