net.sf.jrtps.message

Class HeartbeatFrag

java.lang.Object

net.sf.jrtps.message.SubMessage

net.sf.jrtps.message.HeartbeatFrag

public class HeartbeatFrag
extends SubMessage

When fragmenting data and until all fragments are available, the HeartbeatFrag Submessage is sent from an RTPS Writer to an RTPS Reader to communicate which fragments the Writer has available. This enables reliable communication at the fragment level.
Once all fragments are available, a regular Heartbeat message is used. see 9.4.5.7 HeartBeatFrag Submessage

Author:

mcr70

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.jrtps.message.SubMessage

SubMessage.Kind

Field Summary

Fields

Modifier and Type	Field and Description
static int	KIND

Fields inherited from class net.sf.jrtps.message.SubMessage

header

Constructor Summary

Constructors

Constructor and Description
HeartbeatFrag(SubMessageHeader smh, RTPSByteBuffer bb)

Method Summary

Modifier and Type	Method and Description
int	getCount()
int	getLastFragmentNumber()
EntityId	getReaderId()
EntityId	getWriterId()
SequenceNumber	getWriterSequenceNumber()
void	writeTo(RTPSByteBuffer bb) Writes this SubMessage into given RTPSByteBuffer.

Methods inherited from class net.sf.jrtps.message.SubMessage

getHeader, getKind, toString

Methods inherited from class java.lang.Object

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

Field Detail

KIND

public static final int KIND

See Also:

Constant Field Values

Constructor Detail

HeartbeatFrag

public HeartbeatFrag(SubMessageHeader smh,
                     RTPSByteBuffer bb)

Method Detail

getReaderId

public EntityId getReaderId()

getWriterId

public EntityId getWriterId()

getWriterSequenceNumber

public SequenceNumber getWriterSequenceNumber()

getLastFragmentNumber

public int getLastFragmentNumber()

getCount

public int getCount()

writeTo

public void writeTo(RTPSByteBuffer bb)

Description copied from class: SubMessage

Writes this SubMessage into given RTPSByteBuffer.

Specified by:

writeTo in class SubMessage

Parameters:

bb - RTPSByteBuffer