code: function(descriptor) {
  					var newDescriptor = {
  						get: descriptor.get,
  						set: function(val) {
  							if (fnIsACBUrl(val)) {
  								val = fnConvertUrl(val);
  							}
  							descriptor.set.call(this, val);
  						},
  						enumerable: descriptor.enumerable,
  						configurable: descriptor.configurable
  					};
  					newDescriptor.set._sapUiCoreACB = true;
  					return newDescriptor;
  				}
docs: create an interceptor description which validates the value of the setter whether to rewrite the URL or not