Package org.zkoss.zk.ui.util

## Interface SessionCleanup

-     public interface SessionCleanup

  Used to clean up a session.

  How this interface is used.

  1. First, you specify a class that implements this interface in WEB-INF/zk.xml as a listener.
  2. Then, even time ZK loader is destroying a session, an instance of the specified class is instantiated and `cleanup(org.zkoss.zk.ui.Session)` is called.
  Author:
    tomyeh

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `cleanup​(Session sess)` | called when a session is about to be destroyed.

- - ### Method Detail

    - #### cleanup

          void cleanup​(Session sess)
                throws java.lang.Exception

      called when a session is about to be destroyed.

      If this method throws an exception, the error message is only logged (user won't see it).

      Throws:
        `java.lang.Exception`