Package com.sun.faces.push

Class WebsocketChannelManager

java.lang.Object

com.sun.faces.push.WebsocketChannelManager

All Implemented Interfaces:

Serializable

@SessionScoped
public class WebsocketChannelManager
extends Object
implements Serializable

This web socket channel manager holds all application and session scoped web socket channel identifiers registered by <f:websocket>.

Since:

2.3

Author:

Bauke Scholtz

See Also:

Push, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	WebsocketChannelManager.ViewScope	This helps the web socket channel manager to hold view scoped web socket channel identifiers registered by <f:websocket>.

Constructor Summary

Constructors

Constructor	Description
WebsocketChannelManager()

Method Summary

Modifier and Type	Method	Description
protected void	deregisterSessionScope()	When current session scope is about to be destroyed, deregister all session scope channels and explicitly close any open web sockets associated with it to avoid stale websockets.
String	register(FacesContext context, String channel, String scope, Serializable user)	Register given channel on given scope and returns the web socket channel identifier.

Methods inherited from class java.lang.Object

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

Constructor Detail

WebsocketChannelManager

public WebsocketChannelManager()

Method Detail

register

public String register(FacesContext context,
                       String channel,
                       String scope,
                       Serializable user)

Register given channel on given scope and returns the web socket channel identifier.

Parameters:

context - The involved faces context.

channel - The web socket channel.

scope - The web socket scope. Supported values are application, session and view, case insensitive. If null, the default is application.

user - The user object representing the owner of the given channel. If not null, then scope may not be application.

Returns:

The web socket URL.

Throws:

IllegalArgumentException - When the scope is invalid or when channel already exists on a different scope.

deregisterSessionScope

@PreDestroy
protected void deregisterSessionScope()

When current session scope is about to be destroyed, deregister all session scope channels and explicitly close any open web sockets associated with it to avoid stale websockets. If any, also deregister session users.