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CacheContextListener.java | - | 0% | 0% | 0% |
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1 | /* | |
2 | * Copyright (c) 2002-2003 by OpenSymphony | |
3 | * All rights reserved. | |
4 | */ | |
5 | package com.opensymphony.oscache.web; | |
6 | ||
7 | import javax.servlet.ServletContext; | |
8 | import javax.servlet.ServletContextEvent; | |
9 | import javax.servlet.ServletContextListener; | |
10 | ||
11 | /** | |
12 | * Class for a clean startup and shutdown of the ServletCacheAdministrator and its application scoped cache. | |
13 | * @author <a href="mailto:chris@swebtec.com">Chris Miller</a> | |
14 | */ | |
15 | public class CacheContextListener implements ServletContextListener { | |
16 | ||
17 | /** | |
18 | * This notification occurs when the webapp is ready to process requests.<p> | |
19 | * We use this hook to cleanly start up the {@link ServletCacheAdministrator} | |
20 | * and create the application scope cache (which will consequentially | |
21 | * initialize any listeners configured for it that implement <code>LifecycleAware</code>.)<p> | |
22 | * | |
23 | * As of Servlet 2.4, this is guaranteed to be called before any Servlet.init() | |
24 | * methods. | |
25 | */ | |
26 | 0 | public void contextInitialized(ServletContextEvent servletContextEvent) { |
27 | 0 | ServletContext context = servletContextEvent.getServletContext(); |
28 | 0 | ServletCacheAdministrator.getInstance(context); |
29 | } | |
30 | ||
31 | /** | |
32 | * This notification occurs when the servlet context is about to be shut down. | |
33 | * We use this hook to cleanly shut down the cache. | |
34 | */ | |
35 | 0 | public void contextDestroyed(ServletContextEvent servletContextEvent) { |
36 | 0 | ServletContext context = servletContextEvent.getServletContext(); |
37 | 0 | ServletCacheAdministrator.destroyInstance(context); |
38 | } | |
39 | ||
40 | } |
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