org.eclipse.californium.elements

Interface MessageCallback

public interface MessageCallback

Method Summary

Methods

Modifier and Type	Method and Description
void	onConnecting() Called, when connector requires to establish a connection.
void	onContextEstablished(EndpointContext context) Called when the context information for an outbound message has been established.
void	onDtlsRetransmission(int flight) Called, when the dtls connector retransmits a handshake flight.
void	onError(Throwable error) Called, when message was not sent by the connector.
void	onSent() Called after message was sent by the connector.

Method Detail

onConnecting

void onConnecting()

Called, when connector requires to establish a connection. Not called, if the connection is already established or the connector doesn't require to establish a connection.

onDtlsRetransmission

void onDtlsRetransmission(int flight)

Called, when the dtls connector retransmits a handshake flight.

Parameters:

flight - 1 ... 6, number of retransmitted flight.

onContextEstablished

void onContextEstablished(EndpointContext context)

Called when the context information for an outbound message has been established.

The information contained in the context object depends on the particular transport layer used to send the message. For a transport using DTLS the context will include e.g. the DTLS session's ID, epoch number and cipher that is used for sending the message to the peer.

Note: usually this callback must be processed in a synchronous manner, because if it returns, the message is sent. Therefore take special care in methods called on this callback.

Parameters:

context - transport specific properties describing the context in which the message is sent

onSent

void onSent()

Called after message was sent by the connector.

onError

void onError(Throwable error)

Called, when message was not sent by the connector.

Parameters:

error - details for not sending the message.