Client-side Inter-Portlet Communication. Note: This document refers to Liferay 5.
To see a similar document valid for Liferay 6, refer to Portlet to Portlet Communication or an article especially for using Java Script. Introduction # Communication across portlets is one of the hottest topics of portlet and portal application development. By allowing communication across portlets it's possible to show changes in one portlet based on user interactions with another portlet. Eventing and Shared Render Parameters. Introduction # This page documents using Events and Shared Render Parameters to carry out inter-portlet communication.
Shared render parameters: allows portlets to set params that can be read by other portlets. This rather simple mechanism will probably be enough for all but the most complex communication needs Events: needed for complex scenarios. The main advantage of this second method is that it allows a fully decoupled communication. Portlet . JSR168FAQ.