Fragen zum Event listener

Is the following application possible in XWiki (or does it have too much overhead)?

Given a complex wiki page with various iframes, which are themselves wiki pages. A certain iframe displays a filtered list of XObjects.

The display of this list should be updated automatically when something changes for the display of the Xobjects, such as

  • an object is added
  • an object is deleted
  • an object is changed (with the side effect that the filter is now matched or no longer matched).

One possibility would be to implement regular AJAX requests. My wish would be that the update of the display would be triggered (via an event listener ?).

Am I on the right track?

In my mind this could actually be a standard application.

Thanks in advance for any advice.