org.cometd
Interface DataFilter

public interface DataFilter

Data filters are used to transform data as it is sent to a Channel.

Version:

$Revision: 686 $ $Date: 2009-07-03 11:07:24 +0200 (Fri, 03 Jul 2009) $

Method Summary

java.lang.Object

filter(Client from, Channel channel, java.lang.Object data)

Method Detail

filter

java.lang.Object filter(Client from,
                        Channel channel,
                        java.lang.Object data)
                        throws java.lang.IllegalStateException

Parameters:

from - the Client that sends the data

channel - the channel the data is being sent to

data - the data being sent

Returns:

the transformed data

Throws:

java.lang.IllegalStateException - If the message should be aborted