QsiInterface (JMRI API)

All Known Implementing Classes:

QsiTrafficController
```
public interface QsiInterface
```
Define interface for sending and receiving messages to the QSI command station.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addQsiListener(QsiListener l)`
`void`	`removeQsiListener(QsiListener l)`
`void`	`sendQsiMessage(QsiMessage m, QsiListener l)`	Send a message through the interface.
`boolean`	`status()`	Test operational status of interface.

- Method Detail
  - addQsiListener
```
void addQsiListener(QsiListener l)
```
  - removeQsiListener
```
void removeQsiListener(QsiListener l)
```
  - status
```
boolean status()
```
    Test operational status of interface.
    
    Returns:
    
    true is interface implementation is operational
  - sendQsiMessage
```
void sendQsiMessage(QsiMessage m,
                    QsiListener l)
```
    Send a message through the interface.
    
    Parameters:
    
    m - Message to be sent.
    
    l - Listener to be notified of reply.