org.xmlBlaster.client
Interface I_StreamingCallback

public interface I_StreamingCallback

Interface to receive asynchronously send callback messages from xmlBlaster.

Please implement this to receive your messages.

Version:

$Revision: 1.13 $

Author:

Michele Laghi.

Method Summary

java.lang.String

update(java.lang.String cbSessionId, UpdateKey updateKey, java.io.InputStream contentStream, UpdateQos updateQos) This is the callback method invoked from I_XmlBlasterAccess informing the client in an asynchronous mode about a new message.

Method Detail

update

java.lang.String update(java.lang.String cbSessionId,
                        UpdateKey updateKey,
                        java.io.InputStream contentStream,
                        UpdateQos updateQos)
                        throws XmlBlasterException,
                               java.io.IOException

This is the callback method invoked from I_XmlBlasterAccess informing the client in an asynchronous mode about a new message.

So you should implement in your client code the I_Callback interface - suppling the update() method where you can do with the message whatever you want.

Parameters:

cbSessionId - The session ID specified by the client which registered the callback. You can specify a cbSessionId during connection (with ConnectQos) and this is bounced back here so you can authenticate the message.

updateKey - The arrived key containing the topic name

content - The arrived message content to be accessed as an InputStream.

qos - Quality of Service of the MsgUnit

Throws:

XmlBlasterException

java.io.IOException

See Also:

I_XmlBlasterAccess