Callbacks for IoFutures

• Key: DIRMINA-120
• Type: Improvement
• Status: Closed
• Resolution: Fixed
• Priority: Major
• Assignee: Trustin Lee
• Reporter: Trustin Lee
• Fix Version/s: 0.9.0

Description

IoFuture provides only blocking-way ('join' method) for user to find out the result of an I/O request. It would be great if users can specify a callback:

ConnectFuture future = connector.connect(...);
future.setCallback( new ConnectFuture.Callback() {
    public void connectionEstablished( IoSession session ) {
    }
    public void connectionFailed( Throwable cause ) {
    }
} );

There can be a race condition if the connection process ends before a user calls setCallback() method, but we can resolve this carefully so users don't notice any issue.