## org.apache.http.nio.protocol
Interface EventListener

Deprecated. (4.2) do not use

    @Deprecated
    public interface EventListener

Event listener used by the HTTP protocol layer to report fatal exceptions and events that may need to be logged using a logging toolkit.

Since:
  4.0

Method Summary
`void` `connectionClosed(NHttpConnection conn)` Deprecated. Triggered when a connection has been terminated.
`void` `connectionOpen(NHttpConnection conn)` Deprecated. Triggered when a new connection has been established.
`void` `connectionTimeout(NHttpConnection conn)` Deprecated. Triggered when a connection has timed out.
`void` `fatalIOException(IOException ex, NHttpConnection conn)` Deprecated. Triggered when an I/O error caused a connection to be terminated.
`void` `fatalProtocolException(HttpException ex, NHttpConnection conn)` Deprecated. Triggered when an HTTP protocol error caused a connection to be terminated.

Method Detail

### fatalIOException

    void fatalIOException(IOException ex,
                          NHttpConnection conn)

  Deprecated.
  Triggered when an I/O error caused a connection to be terminated.

  Parameters:
    `ex` - the I/O exception.
    `conn` - the connection.

### fatalProtocolException

    void fatalProtocolException(HttpException ex,
                                NHttpConnection conn)

  Deprecated.
  Triggered when an HTTP protocol error caused a connection to be terminated.

  Parameters:
    `ex` - the protocol exception.
    `conn` - the connection.

### connectionOpen

    void connectionOpen(NHttpConnection conn)

  Deprecated.
  Triggered when a new connection has been established.

  Parameters:
    `conn` - the connection.

### connectionClosed

    void connectionClosed(NHttpConnection conn)

  Deprecated.
  Triggered when a connection has been terminated.

  Parameters:
    `conn` - the connection.

### connectionTimeout

    void connectionTimeout(NHttpConnection conn)

  Deprecated.
  Triggered when a connection has timed out.

  Parameters:
    `conn` - the connection.

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