com.sun.sgs.impl.app.profile
Class ProfileChannelManager

java.lang.Object
  com.sun.sgs.impl.app.profile.ProfileChannelManager

All Implemented Interfaces:

ChannelManager

public class ProfileChannelManager
extends Object
implements ChannelManager

This is implementation of ChannelManager simply calls its backing manager for each manager method.

Constructor Summary

ProfileChannelManager(ChannelManager backingManager)
Creates an instance of ProfileChannelManager.

Method Summary

Channel	createChannel(String name, ChannelListener listener, Delivery delivery) Creates a new channel with the specified listener and delivery guarantee, binds it to the specified name, and returns it.
Channel	getChannel(String name) Returns an existing channel with the specified name.

Methods inherited from class java.lang.Object

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

Constructor Detail

ProfileChannelManager

public ProfileChannelManager(ChannelManager backingManager)

Creates an instance of ProfileChannelManager.

Parameters:

backingManager - the ChannelManager to call through to

Method Detail

createChannel

public Channel createChannel(String name,
                             ChannelListener listener,
                             Delivery delivery)

Creates a new channel with the specified listener and delivery guarantee, binds it to the specified name, and returns it.

If the specified listener is null, then any messages sent on the returned channel by any client session will be automatically forwarded, unfiltered, to all channel members.

If the specified listener is non-null, then when any client session sends a message on the returned channel, the specified listener's receivedMessage method is invoked with the channel, client session and the message. The specified listener is not invoked for messages that the server sends on the channel via the channel's send method. If the specified listener is non-null, then it must also be Serializable.

Supplying a non-null listener (although not required) is strongly suggested. A listener's receivedMessage method provides an opportunity for an application to intervene when a client sends a channel message, to perform access control, filtering, or take other application-specific action on such channel messages.

If a non-null listener is provided, it is strongly suggested that a different listener instance be provided for each channel created, in order to reduce the possible contention on channel listeners.

Messages sent on the returned channel are delivered in a manner that satisfies the minimum requirements of the specified delivery guarantee.

Specified by:

createChannel in interface ChannelManager

Parameters:

name - a name

listener - a channel listener, or null

delivery - a delivery guarantee

Returns:

a new channel bound to the specified name

getChannel

public Channel getChannel(String name)

Returns an existing channel with the specified name.

Specified by:

getChannel in interface ChannelManager

Parameters:

name - a channel name

Returns:

an existing channel bound to the specified name