com.vaadin.terminal.gwt.server
Class WebApplicationContext

java.lang.Object
  com.vaadin.terminal.gwt.server.AbstractWebApplicationContext
      com.vaadin.terminal.gwt.server.WebApplicationContext

All Implemented Interfaces:

ApplicationContext, Serializable, EventListener, HttpSessionBindingListener

public class WebApplicationContext
extends AbstractWebApplicationContext

Web application context for Vaadin applications. This is automatically added as a HttpSessionBindingListener when added to a HttpSession.

Since:

3.1

Version:

7.0.0.alpha3

Author:

Vaadin Ltd.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.vaadin.service.ApplicationContext

ApplicationContext.TransactionListener

Field Summary

protected HttpSession

session

Fields inherited from class com.vaadin.terminal.gwt.server.AbstractWebApplicationContext

applications, applicationToAjaxAppMgrMap, browser, listeners

Constructor Summary

protected

WebApplicationContext() Creates a new Web Application Context.

Method Summary

protected void	addApplication(Application application)
protected void	endTransaction(Application application, Object request) Sends a notification that a transaction has ended.
static WebApplicationContext	getApplicationContext(HttpSession session) Gets the application context for an HttpSession.
CommunicationManager	getApplicationManager(Application application, AbstractApplicationServlet servlet) Gets communication manager for an application.
File	getBaseDirectory() Gets the application context base directory.
HttpSession	getHttpSession() Gets the http-session application is running in.
void	reinitializeSession() Discards the current session and creates a new session with the same contents.
protected void	startTransaction(Application application, Object request) Sends a notification that a transaction is starting.
void	valueUnbound(HttpSessionBindingEvent event)

Methods inherited from class com.vaadin.terminal.gwt.server.AbstractWebApplicationContext

addTransactionListener, generateApplicationResourceURL, getApplications, getBrowser, getLastRequestTime, getTotalSessionTime, getURLKey, isApplicationResourceURL, removeApplication, removeTransactionListener, setLastRequestTime, valueBound

Methods inherited from class java.lang.Object

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

Field Detail

session

protected transient HttpSession session

Constructor Detail

WebApplicationContext

protected WebApplicationContext()

Creates a new Web Application Context.

Method Detail

startTransaction

protected void startTransaction(Application application,
                                Object request)

Description copied from class: AbstractWebApplicationContext

Sends a notification that a transaction is starting.

Overrides:

startTransaction in class AbstractWebApplicationContext

Parameters:

application - The application associated with the transaction.

request - the HTTP or portlet request that triggered the transaction.

endTransaction

protected void endTransaction(Application application,
                              Object request)

Description copied from class: AbstractWebApplicationContext

Sends a notification that a transaction has ended.

Overrides:

endTransaction in class AbstractWebApplicationContext

Parameters:

application - The application associated with the transaction.

request - the HTTP or portlet request that triggered the transaction.

valueUnbound

public void valueUnbound(HttpSessionBindingEvent event)

Specified by:

valueUnbound in interface HttpSessionBindingListener

Overrides:

valueUnbound in class AbstractWebApplicationContext

See Also:

HttpSessionBindingListener.valueUnbound(HttpSessionBindingEvent)

reinitializeSession

public void reinitializeSession()

Discards the current session and creates a new session with the same contents. The purpose of this is to introduce a new session key in order to avoid session fixation attacks.

getBaseDirectory

public File getBaseDirectory()

Gets the application context base directory.

Returns:

The application base directory or null if the application has no base directory.

See Also:

ApplicationContext.getBaseDirectory()

getHttpSession

public HttpSession getHttpSession()

Gets the http-session application is running in.

Returns:

HttpSession this application context resides in.

getApplicationContext

public static WebApplicationContext getApplicationContext(HttpSession session)

Gets the application context for an HttpSession.

Parameters:

session - the HTTP session.

Returns:

the application context for HttpSession.

addApplication

protected void addApplication(Application application)

getApplicationManager

public CommunicationManager getApplicationManager(Application application,
                                                  AbstractApplicationServlet servlet)

Gets communication manager for an application. If this application has not been running before, a new manager is created.

Parameters:

application -

Returns:

CommunicationManager