Package org.apache.wicket.pageStore

Class AbstractPersistentPageStore

java.lang.Object

org.apache.wicket.pageStore.AbstractPersistentPageStore

All Implemented Interfaces:

IPageStore

Direct Known Subclasses:

DiskPageStore, FilePageStore, InMemoryPageStore

public abstract class AbstractPersistentPageStore
extends Object
implements IPageStore

Abstract base class for stores that keep an identifier in the session only, while holding the actual pages in a secondary persistent storage.

See Also:

getSessionIdentifier(IPageContext, boolean)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	AbstractPersistentPageStore.PersistedPage

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractPersistentPageStore(String applicationName)

Method Summary

Modifier and Type	Method	Description
void	addPage(IPageContext context, IManageablePage page)	Stores the page-
protected abstract void	addPersistedPage(String sessionIdentifier, IManageablePage page)	Add a page.
boolean	canBeAsynchronous(IPageContext context)	This method is called by AsynchronousPageStore before any attempt to call IPageStore.addPage(IPageContext, IManageablePage) asynchronously.
protected String	createSessionIdentifier(IPageContext context)	Create an identifier for the given context.
void	destroy()	Destroy the store.
IManageablePage	getPage(IPageContext context, int id)	Restores a page from storage.
protected abstract IManageablePage	getPersistedPage(String sessionIdentifier, int id)
String	getSessionIdentifier(IPageContext context)
void	removeAllPages(IPageContext context)	All pages should be removed from storage for the given context.
protected abstract void	removeAllPersistedPages(String sessionIdentifier)
void	removePage(IPageContext context, IManageablePage page)	Removes a page from storage.
protected abstract void	removePersistedPage(String sessionIdentifier, IManageablePage page)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wicket.pageStore.IPageStore

detach, end, revertPage, supportsVersioning

Constructor Detail

AbstractPersistentPageStore

protected AbstractPersistentPageStore(String applicationName)

Method Detail

destroy

public void destroy()

Description copied from interface: IPageStore

Destroy the store.

Specified by:

destroy in interface IPageStore

canBeAsynchronous

public boolean canBeAsynchronous(IPageContext context)

Description copied from interface: IPageStore

This method is called by AsynchronousPageStore before any attempt to call IPageStore.addPage(IPageContext, IManageablePage) asynchronously.

A page store returning true must immediately access all required values from the context, since no additional values can be accessed when IPageStore.addPage(IPageContext, IManageablePage) is called asynchronously afterwards.

Specified by:

canBeAsynchronous in interface IPageStore

Returns:

whether IPageStore.addPage(IPageContext, IManageablePage) may be called asynchronously, default is false

getPage

public IManageablePage getPage(IPageContext context,
                               int id)

Description copied from interface: IPageStore

Restores a page from storage.

Specified by:

getPage in interface IPageStore

Parameters:

context - the context of the page

id - the id of the page.

Returns:

the page

getPersistedPage

protected abstract IManageablePage getPersistedPage(String sessionIdentifier,
                                                    int id)

removePage

public void removePage(IPageContext context,
                       IManageablePage page)

Description copied from interface: IPageStore

Removes a page from storage.

Specified by:

removePage in interface IPageStore

Parameters:

context - the context of the page

page - the page.

removePersistedPage

protected abstract void removePersistedPage(String sessionIdentifier,
                                            IManageablePage page)

removeAllPages

public void removeAllPages(IPageContext context)

Description copied from interface: IPageStore

All pages should be removed from storage for the given context.

Specified by:

removeAllPages in interface IPageStore

Parameters:

context - the context of the pages

removeAllPersistedPages

protected abstract void removeAllPersistedPages(String sessionIdentifier)

addPage

public void addPage(IPageContext context,
                    IManageablePage page)

Description copied from interface: IPageStore

Stores the page-

Specified by:

addPage in interface IPageStore

Parameters:

context - the context of the page

page - the page.

addPersistedPage

protected abstract void addPersistedPage(String sessionIdentifier,
                                         IManageablePage page)

Add a page.

Parameters:

sessionIdentifier - identifier of session

page - page to add

createSessionIdentifier

protected String createSessionIdentifier(IPageContext context)

Create an identifier for the given context.

Default implementation uses IPageContext.getSessionId(boolean)}.

Parameters:

context - context

Returns:

identifier for the session

getSessionIdentifier

public String getSessionIdentifier(IPageContext context)