code: function(req) {
      if (!this.name) {
        throw new Error("Incomplete parameter definition. No name specified for parameter definition " + this)
      }
  
      var result = undefined
      if (this.location === "query") {
        result = req.query[this.name]
      } else if (this.location === "path") {
        result = req.params[this.name]
      } else if (this.location === "header") {
        result = req.header[this.name]
      } else if (this.location === "body") {
        result = req.body
      } else if (this.location === "formData") {
        result = req.body && req.body[this.name]
      } else {
        throw new Error("Unrecognized location value specified for parameter '" + this.name + "': " + this.location)
      }
  
      // Parameters that come in as an empty string should look like undefined
      if (result === '') {
        result = undefined
      }
  
      if (!result && this.default) {
        result = this.default
      }
  
      return result
    }
docs: XXX: dead code? ***************************************************************************
  @method extractParameterValueFromRequest
  @description Retrieves the parameter value from a request, returning the
  default value if it does not exist and a default value is
  defined. Note, values returned from this method are not
  parsed.
  @param {carbond.Request} req -- The incoming request object
  @returns {*}