Capture Page onload event


I have page with table that populates data based on complex query(takes lot of time even though I use pagination). I use BeanItemcontainer to load data in to the table. Now coming to the problem, I wish to load the data in to the table in a async way(after the complete page gets loaded on the user screen. I wan to populate the data). Is there some thing like onPageLoad event or onPageRenderEvent or equivalent that I can use to achieve this?

Details -

Version - Vaadin -7.0
Component - Table
Data Container - BeanItemContainer.