Syntax:

a_class_name

[Default: org.zkoss.zk.ui.http.SimpleSessionCache]

It specifies the session cache used to store ZK sessions. It must implement the

org.zkoss.zk.ui.sys.SessionCache

interface.

By default, org.zkoss.zk.ui.http.SimpleSessionCache is used and it stores the ZK session in an attribute of the native session (i.e., HttpSession or PortletSession).