How to execute bean method before page display?

Question

What is the best approach for executing a method in a bean before the JSF page is rendered using a bean?

Update . I am trying to execute a method that populates some data used by JSF bean support. This bean support is used in the form on the JSP page where I need some preliminary data.

Answer 1

In JSF2, you can also use a system event.

<f:event type="preRenderView" listener="#{customerBean.loadData}"/> 

Answer 2

The constructor constructor for bean / post @PostConstruct will do this.

But the best approach depends a lot on the functionality you implement,