code: function (pageDefinition, args) {
              var callback = args.callback, pageRequest = args.pageRequest;
              this.__updateUrlMap(pageDefinition);
              var url = this.__getUrl(pageRequest);
              pageDefinition.url = url;
              this.__updateUrlMap(pageDefinition);
              this.$callback(callback.onsuccess, this.processPageDefinition(pageDefinition));
          }
docs: Call the success callback by providing the page definition as argument. If it does not contain a url, the
  pageId is aused as url. If the cache is enbled, it is filled with the response
  @param {Object} pageDefinition Page definition retrieved from .json file
  @param {Object} args
  
  <pre>
  {
  callback : object of type aria.pageEngine.CfgBeans.ExtendedCallback,
  pageRequest : object of type aria.pageEngine.CfgBeans.PageRequest
  }
  </pre>
  
  @private