ZK - Open Source Ajax Java Framework

I have to know when doAfterCompose method executed when we extend GenericForwardComposer and generally what code or logic should be written in doAfterCompose method. i am in confusion with DoAfterCompose method.

The ZKLoader "invokes doAfterCompose(org.zkoss.zk.ui.Component) after all children are, if any, composed". You can can read more here: http://www.zkoss.org/javadoc/latest/zk/org/zkoss/zk/ui/util/Composer.html. You could also look here: http://books.zkoss.org/wiki/ZK_Essentials/Handling_the_Login_Process_using_ZK_MVC_and_Sessions/Implementing_ZK_MVC