Class HeartbeatMessage

java.lang.Object

pt.unl.fct.di.novasys.babel2.channels.legacy.messages.HeartbeatMessage

All Implemented Interfaces:

ControlMessage

public final class HeartbeatMessage
extends Object
implements ControlMessage

Periodic heartbeat message exchanged to maintain legacy connection liveness.

Field Summary

Fields

Modifier and Type	Field	Description
static final HeartbeatMessage	INSTANCE	Singleton instance of HeartbeatMessage.
static final int	TYPE_INT	Integer type identifier for heartbeat messages.

Fields inherited from interface ControlMessage

CONTROL_MAGIC_NUMBER

Modifier and Type	Field	Description
static final int	CONTROL_MAGIC_NUMBER	Magic number used to identify legacy control protocol frames.

Method Summary

Modifier and Type	Method	Description
int	attributeMapSize()	Returns the count of attributes carried in this control message envelope.
int	getTypeInt()	Returns the integer type identifier of this control message.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

INSTANCE

public static final HeartbeatMessage INSTANCE

Singleton instance of HeartbeatMessage.

TYPE_INT

public static final int TYPE_INT

Integer type identifier for heartbeat messages.

See Also:

• Constant Field Values

Method Details

getTypeInt

public int getTypeInt()

Description copied from interface: ControlMessage

Returns the integer type identifier of this control message.

Specified by:

getTypeInt in interface ControlMessage

Returns:

the message type code

attributeMapSize

public int attributeMapSize()

Description copied from interface: ControlMessage

Returns the count of attributes carried in this control message envelope.

Specified by:

attributeMapSize in interface ControlMessage

Returns:

the attribute map size