org.apache.wicket.page
Interface IPageManager

All Known Implementing Classes:

AbstractPageManager, MockPageManager, PageManagerDecorator, PageStoreManager

public interface IPageManager

Page manager.

Author:

Matej Knopp

Method Summary

void	commitRequest() Commits the changes to external storage if the manager uses it.
void	destroy() Destroy the page manager.
IPageManagerContext	getContext()
IManageablePage	getPage(int id) Retrieve page instance with given id.
void	newSessionCreated() Invoked when new session has been created.
void	sessionExpired(String sessionId) Invoked when the session has been expired.
boolean	supportsVersioning() Returns whether this manager supports versioning.
void	touchPage(IManageablePage page) Marks page as changed.

Method Detail

getContext

IPageManagerContext getContext()

Returns:

the page manager context

getPage

IManageablePage getPage(int id)
                        throws CouldNotLockPageException

Retrieve page instance with given id.

Parameters:

id - the id of the page to load

Returns:

page instance or null

Throws:

CouldNotLockPageException - if the page is already locked by another thread and the lock cannot be acquired for some timeout

touchPage

void touchPage(IManageablePage page)
               throws CouldNotLockPageException

Marks page as changed.

Note:Only stateful pages are stored.

Parameters:

page - the page that should be stored in the page stores at the end of the request.

Throws:

CouldNotLockPageException - if the page is already locked by another thread and the lock cannot be acquired for some timeout

supportsVersioning

boolean supportsVersioning()

Returns whether this manager supports versioning. Managers that support versioning must store page snapshots.

Returns:

whether this page manager supports versioning

commitRequest

void commitRequest()

Commits the changes to external storage if the manager uses it. Should also detach all pages that were touched during this request.

newSessionCreated

void newSessionCreated()

Invoked when new session has been created.

sessionExpired

void sessionExpired(String sessionId)

Invoked when the session has been expired.

Parameters:

sessionId - the id of the expired session

destroy

void destroy()

Destroy the page manager.