org.apache.wicket.pageStore

Class PerSessionPageStore.PagesCache

java.lang.Object

org.apache.wicket.pageStore.PerSessionPageStore.PagesCache

All Implemented Interfaces:

SecondLevelPageCache<String,Integer,IManageablePage>

Enclosing class:

PerSessionPageStore

protected static class PerSessionPageStore.PagesCache
extends Object
implements SecondLevelPageCache<String,Integer,IManageablePage>

An implementation of SecondLevelPageCache that stores the last used N live page instances per http session.

Constructor Summary

Constructors

Constructor and Description
PagesCache(int maxEntriesPerSession) Constructor.

Method Summary

Modifier and Type	Method and Description
void	destroy()
IManageablePage	getPage(String sessionId, Integer pageId) Returns a IManageablePage by looking it up by sessionId and pageId.
IManageablePage	removePage(String sessionId, Integer pageId)
void	removePages(String sessionId) Removes all IManageablePages for the session with sessionId from the cache.
void	storePage(String sessionId, Integer pageId, IManageablePage page) Store the serialized page in cache

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PagesCache

public PagesCache(int maxEntriesPerSession)

Constructor.

Parameters:

maxEntriesPerSession - The number of cache entries per session

Method Detail

removePage

public IManageablePage removePage(String sessionId,
                                  Integer pageId)

Specified by:

removePage in interface SecondLevelPageCache<String,Integer,IManageablePage>

Parameters:

sessionId - The id of the http session

pageId - The id of the page to remove from the cache

Returns:

the removed IManageablePage or null - otherwise

removePages

public void removePages(String sessionId)

Removes all IManageablePages for the session with sessionId from the cache.

Specified by:

removePages in interface SecondLevelPageCache<String,Integer,IManageablePage>

Parameters:

sessionId - The id of the expired http session

getPage

public IManageablePage getPage(String sessionId,
                               Integer pageId)

Returns a IManageablePage by looking it up by sessionId and pageId. If there is a match then it is touched, i.e. it is moved at the top of the cache.

Specified by:

getPage in interface SecondLevelPageCache<String,Integer,IManageablePage>

Parameters:

sessionId - The id of the http session

pageId - The id of the page to find

Returns:

the found serialized page or null when not found

storePage

public void storePage(String sessionId,
                      Integer pageId,
                      IManageablePage page)

Store the serialized page in cache

Specified by:

storePage in interface SecondLevelPageCache<String,Integer,IManageablePage>

Parameters:

page - the data to serialize (page id, session id, bytes)

destroy

public void destroy()

Specified by:

destroy in interface SecondLevelPageCache<String,Integer,IManageablePage>