org.apache.wsrp4j.consumer.app.driver
Class PageRegistryImpl

java.lang.Object
  org.apache.wsrp4j.consumer.app.driver.PageRegistryImpl

All Implemented Interfaces:

PageRegistry, StateChangedListener

public class PageRegistryImpl

extends java.lang.Object

implements PageRegistry, StateChangedListener

This class implements the PageRegistry interface and can be used to administer Page objects.

Version:

$Id: PageRegistryImpl.java,v 1.3 2005/08/10 14:45:38 cziegeler Exp $

Author:

Stephan Laertz

See Also:

Page, PageRegistry

Field Summary

private HandleGenerator	handleGenerator
private static PageRegistry	instance
private Logger	logger
private java.util.Hashtable	pages
private PersistentDataObject	persistentDataObject
private PersistentHandler	persistentHandler

Constructor Summary

private

PageRegistryImpl()

Method Summary

void	addPage(Page page) Add a page to the registry
private void	delete(Page page)
boolean	existsPage(java.lang.String pageID) Tests if page with the given ID exists
java.util.Iterator	getAllPages() Get all pages in the registry
(package private) static PageRegistry	getInstance() Get a reference to the singleton of the page registry.
Page	getPage(java.lang.String pageID) Get the page with the given ID
Page	removePage(java.lang.String pageID) Remove the page with the given ID from the registry
private void	restore() Restores all available portlets from persistent file store
void	stateChanged(StateChangedEvent event) StateChanged event occured
private void	store(Page page) Store a page

Methods inherited from class java.lang.Object

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

Field Detail

instance

private static PageRegistry instance

pages

private java.util.Hashtable pages

persistentDataObject

private PersistentDataObject persistentDataObject

persistentHandler

private PersistentHandler persistentHandler

handleGenerator

private HandleGenerator handleGenerator

logger

private Logger logger

Constructor Detail

PageRegistryImpl

private PageRegistryImpl()

Method Detail

getInstance

static PageRegistry getInstance()

Get a reference to the singleton of the page registry.

Returns:

A reference to this PageRegistryImpl object.

addPage

public void addPage(Page page)

Add a page to the registry

Specified by:

addPage in interface PageRegistry

Parameters:

page - The page to add

getPage

public Page getPage(java.lang.String pageID)

Get the page with the given ID

Specified by:

getPage in interface PageRegistry

Parameters:

pageID - ID of the page

Returns:

The page with the given ID

getAllPages

public java.util.Iterator getAllPages()

Get all pages in the registry

Specified by:

getAllPages in interface PageRegistry

Returns:

Iterator with all pages

removePage

public Page removePage(java.lang.String pageID)

Remove the page with the given ID from the registry

Specified by:

removePage in interface PageRegistry

Parameters:

pageID - ID of the page to be removed

Returns:

The page which had been mapped to this id or null if no page was found with the given id

existsPage

public boolean existsPage(java.lang.String pageID)

Tests if page with the given ID exists

Specified by:

existsPage in interface PageRegistry

Parameters:

pageID - ID of the page

Returns:

True if a page exists with this ID

stateChanged

public void stateChanged(StateChangedEvent event)

StateChanged event occured

Specified by:

stateChanged in interface StateChangedListener

Parameters:

event -

restore

private void restore()
              throws WSRPException

Restores all available portlets from persistent file store

Throws:

WSRPException

store

private void store(Page page)
            throws WSRPException

Store a page

Throws:

WSRPException

delete

private void delete(Page page)