#' @name SDMXConceptScheme
#' @docType class
#' @aliases SDMXConceptScheme-class
#'
#' @title Class "SDMXConceptScheme"
#' @description A basic class to handle a SDMX Concept scheme
#'
#' @slot id Object of class "character" giving the ID of the concept scheme (required)
#' @slot agencyID Object of class "character" giving the AgencyID
#' @slot version Object of class "character" giving the version
#' @slot uri Object of class "character" giving the concept uri
#' @slot urn Object of class "character" giving the concept urn
#' @slot isExternalReference Object of class "logical" indicating if the concept scheme is an external reference
#' @slot isFinal Object of class "logical" indicating if the concept scheme is final
#' @slot validFrom Object of class "character" indicating the start validity period
#' @slot validTo Object of class "character" indicating the end validity period
#' @slot Name Object of class "list" giving the concept scheme name (by language) - required
#' @slot Description Object of class "list" giving the concept scheme description (by language)
#' @slot Concept Object of class "list" giving the list of "SDMXConcept" objects (see \link{SDMXConcept})
#'
#' @section Warning:
#' This class is not useful in itself, but all SDMX non-abstract classes will
#' encapsulate it as slot, when parsing an SDMX-ML document (Concepts, or
#' DataStructureDefinition)
#'
#' @author Emmanuel Blondel, \email{emmanuel.blondel1@@gmail.com}
#'
setClass("SDMXConceptScheme",
representation(
#attributes
id = "character", #required
agencyID = "character", #optional
version = "character", #optional
uri = "character", #optional
urn = "character", #optional
isExternalReference = "logical", #optional
isFinal = "logical", #optional
validFrom = "character", #optional
validTo = "character", #optional
#elements
Name = "list", #at least one
Description = "list", #optional
Concept = "list" #optional
),
prototype = list(
#attributes
id = "CONCEPTSCHEME_ID",
agencyID = "AGENCY_ID",
version = "1.0",
uri = as.character(NA),
urn = as.character(NA),
isExternalReference = FALSE,
isFinal = FALSE,
validFrom = as.character(NA),
validTo = as.character(NA),
#elements
Name = list(
en = "concept name",
fr = "nom du concept"
),
Description = list(
en = "concept description",
fr = "description du concept"
),
Concept = list()
),
validity = function(object){
#validation rules
if(.rsdmx.options$validate){
if(is.na(object@id)) return(FALSE)
if(length(object@Name) == 0) return(FALSE)
}
return(TRUE);
}
)
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