Universal Messaging Java - DataStreamListener
If a nSession is created with a nDataStreamListener then it will receive asynchronous callbacks via the onMessage implementation of the nDataStreamListener interface. The nDataStreamListener will receive events when:
An event is published directly to this particular nDataStream
An event is published to any nDataGroup which contains this nDataStream
An event is published to an nDataGroup which contains a nested nDataGroup containing this nDataStream
An example of how to create a session with an nDataStreamListener interface is shown below:
public class DataGroupClient implements nDataStreamListener{
nSession mySession;
public DataGroupClient( String realmURLs){
nSessionAttributes nsa = new nSessionAttributes(realmURLs);
mySession = nSessionFactory.create(nsa, this);
mySession.init(this);
}
////
// nDataStreamListener Implementation
////
//Callback received when event is available
public void onMessage(nConsumeEvent event){
//some code to process the message
}
}
