code: function (item, index) {
              var component = this._createComponentForItem(item, index);
              this._cacheComponentForItem(item, component);
              this._innerAddChild(component, index);
          }
docs: *
  Inner render method for an item
  Creates a component, caches the component and adds the component to the list of children
  @param {Object} item
  @param {Number} index
  @private