TYPE_DIRECTORY = 1
TYPE_FILE = 2
TYPE_UNKNOWN = 3
$contents :
$mode :
$type :
$relativePath :
$relativePathname :
__construct( $param)
isFile()
isDir()
isReadable()
getContents()
setContents( $contents)
setMode( $mode)
setType( $type)
setRelativePath( $relativePath)
setRelativePathname( $relativePathname)
getRelativePath()
getRelativePathname()