org.apache.wicket.pageStore

Class DefaultPageStore

java.lang.Object

org.apache.wicket.pageStore.AbstractPageStore

org.apache.wicket.pageStore.AbstractCachingPageStore<DefaultPageStore.SerializedPage>

org.apache.wicket.pageStore.DefaultPageStore

All Implemented Interfaces:

IPageStore

public class DefaultPageStore
extends AbstractCachingPageStore<DefaultPageStore.SerializedPage>

The IPageStore that converts IManageablePage instances to DefaultPageStore.SerializedPages before passing them to the IDataStore to store them and the same in the opposite direction when loading DefaultPageStore.SerializedPage from the data store.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	DefaultPageStore.SerializedPage A representation of IManageablePage that knows additionally the id of the http session in which this IManageablePage instance is used.

Field Summary

Fields inherited from class org.apache.wicket.pageStore.AbstractCachingPageStore

pagesCache

Fields inherited from class org.apache.wicket.pageStore.AbstractPageStore

dataStore, pageSerializer

Constructor Summary

Constructors

Constructor and Description
DefaultPageStore(ISerializer pageSerializer, IDataStore dataStore, int cacheSize) Construct.

Method Summary

Modifier and Type	Method and Description
boolean	canBeAsynchronous()
IManageablePage	convertToPage(Object object) Converts a page representation to an instance of IManageablePage
protected DefaultPageStore.SerializedPage	createSerializedPage(String sessionId, IManageablePage page)
Serializable	prepareForSerialization(String sessionId, Serializable page) Process the page before the it gets serialized.
Object	restoreAfterSerialization(Serializable serializable) This method should restore the serialized page to intermediate object that can be converted to real page instance using IPageStore.convertToPage(Object).
protected boolean	storeAfterSessionReplication()
void	storePage(String sessionId, IManageablePage page) Stores the page to a persistent layer.

Methods inherited from class org.apache.wicket.pageStore.AbstractCachingPageStore

destroy, getPage, removePage, unbind

Methods inherited from class org.apache.wicket.pageStore.AbstractPageStore

deserializePage, getPageData, removePageData, removePageData, serializePage, storePageData

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultPageStore

public DefaultPageStore(ISerializer pageSerializer,
                        IDataStore dataStore,
                        int cacheSize)

Construct.

Parameters:

pageSerializer - the ISerializer that will be used to convert pages from/to byte arrays

dataStore - the IDataStore that actually stores the pages

cacheSize - the number of pages to cache in memory before passing them to IDataStore.storeData(String, int, byte[])

Method Detail

storePage

public void storePage(String sessionId,
                      IManageablePage page)

Description copied from interface: IPageStore

Stores the page to a persistent layer. The page should be stored under the id and the version number.

Specified by:

storePage in interface IPageStore

Overrides:

storePage in class AbstractCachingPageStore<DefaultPageStore.SerializedPage>

Parameters:

sessionId - The session of the page that must be removed

page - The page to store

convertToPage

public IManageablePage convertToPage(Object object)

Description copied from interface: IPageStore

Converts a page representation to an instance of IManageablePage

Parameters:

object - some kind of page representation

Returns:

page

prepareForSerialization

public Serializable prepareForSerialization(String sessionId,
                                            Serializable page)

Description copied from interface: IPageStore

Process the page before the it gets serialized. The page can be either real page instance or object returned by IPageStore.restoreAfterSerialization(Serializable).

Specified by:

prepareForSerialization in interface IPageStore

Overrides:

prepareForSerialization in class AbstractPageStore

Parameters:

sessionId - The session of the page that must be removed

Returns:

The Page itself or a SerializedContainer for that page

storeAfterSessionReplication

protected boolean storeAfterSessionReplication()

Returns:

Always true for this implementation

restoreAfterSerialization

public Object restoreAfterSerialization(Serializable serializable)

Description copied from interface: IPageStore

This method should restore the serialized page to intermediate object that can be converted to real page instance using IPageStore.convertToPage(Object).

Specified by:

restoreAfterSerialization in interface IPageStore

Overrides:

restoreAfterSerialization in class AbstractPageStore

Returns:

Page

createSerializedPage

protected DefaultPageStore.SerializedPage createSerializedPage(String sessionId,
                                                               IManageablePage page)

Parameters:

sessionId -

page -

Returns:

the serialized page information

canBeAsynchronous

public boolean canBeAsynchronous()

Returns:

whether the implementation can be wrapped in AsynchronousPageStore