Hi all,

Just yesterday we released the stable 1.0.0 version of the Vaadin IPC for Liferay.

This component allow Vaadin portlets to communicate with each other without the need of refreshing the page or using a push engine. It uses the Liferay's JavaScript API that allows portlets to communicate without the need of refreshing the page.

This is much better than the standard inter-portlet communication (IPC) mechanism defined in the Portlet 2.0 specifications which requires the page to be reloaded when the communication takes page.

More information here: Inter-Portlet Communication for Liferay
Download: vaadin.com/addon/vaadin-ipc-for-liferay

I've used what I guess would be the unstable version. Worked like a charm!