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#' GMLParameterValue
#'
#' @docType class
#' @importFrom R6 R6Class
#' @export
#' @keywords ISO GML parameter value
#' @return Object of \code{\link{R6Class}} for modelling an GML parameter value
#' @format \code{\link{R6Class}} object.
#'
#' @examples
#' gml <- GMLParameterValue$new()
#' gml$setValue(1.1, "test")
#' op <- GMLOperationParameter$new()
#' op$setDescriptionReference("someref")
#' op$setIdentifier("identifier", "codespace")
#' op$addName("name1", "codespace")
#' op$addName("name2", "codespace")
#' op$setMinimumOccurs(2L)
#' gml$setOperationParameter(op)
#' xml <- gml$encode()
#'
#' @references
#' ISO 19136:2007 Geographic Information -- Geographic Markup Language.
#' http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=32554
#'
#' OGC Geography Markup Language. http://www.opengeospatial.org/standards/gml
#'
#' @author Emmanuel Blondel <emmanuel.blondel1@@gmail.com>
#'
GMLParameterValue <- R6Class("GMLParameterValue",
inherit = GMLAbstractGeneralParameterValue,
private = list(
xmlElement = "ParameterValue",
xmlNamespacePrefix = "GML"
),
public = list(
#'@field value value
value = NULL,
#'@field stringValue string value
stringValue = NULL,
#'@field integerValue integer value
integerValue = NULL,
#'@field booleanValue boolean value
booleanValue = NULL,
#'@field valueList value list
valueList = NULL, #TODO
#'@field integerValueList integer value list
integerValueList = NULL, #TODO
#'@field valueFile value file
valueFile = NULL,
#'@field operationParameter operation parameter
operationParameter = NULL,
#'@description Initializes object
#'@param xml object of class \link{XMLInternalNode-class}
#'@param defaults default values
initialize = function(xml = NULL, defaults = list()){
super$initialize(xml, element = private$xmlElement, defaults)
},
#'@description Set value
#'@param value value, object of class \link{numeric}
#'@param uom uom
setValue = function(value, uom){
if(!is(value, "numeric")){stop("Value should be an object of class 'numeric'")}
valueElem <- GMLElement$new(element = "value")
valueElem$setValue(value)
valueElem$attrs <- list(uom = uom)
self$value <- valueElem
},
#'@description Set string value
#'@param value value
setStringValue = function(value){
valueElem <- GMLElement$new(element = "stringValue")
valueElem$setValue(value)
self$stringValue <- valueElem
},
#'@description Set integer value
#'@param value value, object of class \link{integer}
setIntegerValue = function(value){
if(!is(value, "integer")){stop("Value should be an object of class 'integer'")}
valueElem <- GMLElement$new(element = "integerValue")
valueElem$setValue(value)
self$integerValue <- valueElem
},
#'@description Set boolean value
#'@param value object of class \link{logical}
setBooleanValue = function(value){
if(!is(value, "logical")){stop("Value should be an object of class 'logical'")}
valueElem <- GMLElement$new(element = "booleanValue")
valueElem$setValue(value)
self$booleanValue <- valueElem
},
#'@description Set value file
#'@param value value
setValueFile = function(value){
if(!is(value, "character")){stop("Value should be an object of class 'character'")}
valueElem <- GMLElement$new(element = "valueFile")
valueElem$setValue(value)
self$valueFile <- valueElem
},
#'@description Set operation parameter
#'@param operationParameter object of class \link{GMLOperationParameter}
setOperationParameter = function(operationParameter){
if(!is(operationParameter, "GMLOperationParameter")){
stop("Input 'operationParameter' should be of an object of class 'GMLOperationParameter'")
}
self$operationParameter <- operationParameter
}
)
)
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