ProtocolCommandListener (Apache Commons Net 3.6 API)

All Superinterfaces:

java.util.EventListener

All Known Implementing Classes:

PrintCommandListener
```
public interface ProtocolCommandListener
extends java.util.EventListener
```
There exists a large class of IETF protocols that work by sending an ASCII text command and arguments to a server, and then receiving an ASCII text reply. For debugging and other purposes, it is extremely useful to log or keep track of the contents of the protocol messages. The ProtocolCommandListener interface coupled with the ProtocolCommandEvent class facilitate this process.
To receive ProtocolCommandEvents, you merely implement the ProtocolCommandListener interface and register the class as a listener with a ProtocolCommandEvent source such as FTPClient.

See Also:

ProtocolCommandEvent, ProtocolCommandSupport

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`protocolCommandSent(ProtocolCommandEvent event)`	This method is invoked by a ProtocolCommandEvent source after sending a protocol command to a server.
`void`	`protocolReplyReceived(ProtocolCommandEvent event)`	This method is invoked by a ProtocolCommandEvent source after receiving a reply from a server.

- Method Detail
  - protocolCommandSent
```
void protocolCommandSent(ProtocolCommandEvent event)
```
    This method is invoked by a ProtocolCommandEvent source after sending a protocol command to a server.
    
    Parameters:
    
    event - The ProtocolCommandEvent fired.
  - protocolReplyReceived
```
void protocolReplyReceived(ProtocolCommandEvent event)
```
    This method is invoked by a ProtocolCommandEvent source after receiving a reply from a server.
    
    Parameters:
    
    event - The ProtocolCommandEvent fired.