The org.zkoss.zk.ui.util.SessionInit interface

Listener:

org.zkoss.zk.ui.util.SessionInit

A listener could implement SessionCleanup to cleanup a session that is being destroyed.

When ZK Loader is going to destroy a session, it invokes the cleanup method of this interface such that developers could plug the application-specific codes to cleanup a session.

Instantiation: An independent instance of the given class is instantiated each time before the method is invoked. It means it is thread safe, and all information stored in non-static members will be lost after called.