ShutdownNotifier (RabbitMQ Java Client 4.12.0 API)

All Known Subinterfaces:

Channel, Connection, RecoverableChannel, RecoverableConnection

All Known Implementing Classes:

AMQChannel, AMQConnection, AutorecoveringChannel, AutorecoveringConnection, ChannelN, RecoveryAwareAMQConnection, RecoveryAwareChannelN, ShutdownNotifierComponent
```
public interface ShutdownNotifier
```
Interface for components that are shutdown capable and that allow listeners to be added for shutdown signals

See Also:

ShutdownListener, ShutdownSignalException

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addShutdownListener(ShutdownListener listener)`	Add shutdown listener.
`ShutdownSignalException`	`getCloseReason()`	Get the shutdown reason object
`boolean`	`isOpen()`	Determine whether the component is currently open.
`void`	`notifyListeners()`	Protected API - notify the listeners attached to the component
`void`	`removeShutdownListener(ShutdownListener listener)`	Remove shutdown listener for the component.

- Method Detail
  - addShutdownListener
```
void addShutdownListener(ShutdownListener listener)
```
    Add shutdown listener. If the component is already closed, handler is fired immediately
    
    Parameters:
    
    listener - ShutdownListener to the component
  - removeShutdownListener
```
void removeShutdownListener(ShutdownListener listener)
```
    Remove shutdown listener for the component.
    
    Parameters:
    
    listener - ShutdownListener to be removed
  - getCloseReason
```
ShutdownSignalException getCloseReason()
```
    Get the shutdown reason object
    
    Returns:
    
    ShutdownSignalException if component is closed, null otherwise
  - notifyListeners
```
void notifyListeners()
```
    Protected API - notify the listeners attached to the component
    
    See Also:
    
    ShutdownListener
  - isOpen
```
boolean isOpen()
```
    Determine whether the component is currently open. Will return false if we are currently closing. Checking this method should be only for information, because of the race conditions - state can change after the call. Instead just execute and try to catch ShutdownSignalException and IOException
    
    Returns:
    
    true when component is open, false otherwise