code: function (collection, options) {
                  var ret;
                  if (collection && collection.$modelFactory) {
                      ret = this.getProcessorForModelClass(collection.$modelFactory, options);
                  }
  
                  return ret || this.$defaultProcessor;
              }
docs: *
  Returns the correct processor for a collection
  
  @param {js.data.Collection} collection
  @param {Object} [options]
  @return {js.data.DataSource.Processor} processor