org.javagroups.protocols
Class TOTAL.Header

java.lang.Object
  |
  +--org.javagroups.Header
        |
        +--org.javagroups.protocols.TOTAL.Header

All Implemented Interfaces:

java.lang.Cloneable, java.io.Externalizable, java.io.Serializable

Enclosing class:

TOTAL

public static class TOTAL.Header

extends Header

The header processed by the TOTAL layer and intended for TOTAL inter-stack communication

See Also:

Serialized Form

Field Summary

static int	BCAST Broadcast Message
long	localSeqID The ID used by the message source to match replies from the sequencer
static int	NULL_TYPE Null value for the tag
static int	REP Reply to broadcast request.
static int	REQ Request to broadcast by the source
long	seqID The ID imposing the total order of messages
int	type The header's type tag
static int	UCAST Unicast message

Fields inherited from class org.javagroups.Header

HDR_OVERHEAD

Constructor Summary

TOTAL.Header()
used for externalization

TOTAL.Header(int type, long localSeqID, long seqID)
Create a header for the TOTAL layer

Method Summary

void	readExternal(java.io.ObjectInput in) Manual deserialization
java.lang.String	toString() For debugging purposes
void	writeExternal(java.io.ObjectOutput out) Manual serialization

Methods inherited from class org.javagroups.Header

size

Methods inherited from class java.lang.Object

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

Field Detail

NULL_TYPE

public static final int NULL_TYPE

Null value for the tag

See Also:

Constant Field Values

REQ

public static final int REQ

Request to broadcast by the source

See Also:

Constant Field Values

REP

public static final int REP

Reply to broadcast request.

See Also:

Constant Field Values

UCAST

public static final int UCAST

Unicast message

See Also:

Constant Field Values

BCAST

public static final int BCAST

Broadcast Message

See Also:

Constant Field Values

type

public int type

The header's type tag

localSeqID

public long localSeqID

The ID used by the message source to match replies from the sequencer

seqID

public long seqID

The ID imposing the total order of messages

Constructor Detail

TOTAL.Header

public TOTAL.Header()

used for externalization

TOTAL.Header

public TOTAL.Header(int type,
                    long localSeqID,
                    long seqID)

Create a header for the TOTAL layer

Parameters:

type - the header's type

localSeqID - the ID used by the sender of broadcasts to match requests with replies from the sequencer

seqID - the ID imposing the total order of messages

Throws:

java.lang.IllegalArgumentException - if the provided header type is unknown

Method Detail

toString

public java.lang.String toString()

For debugging purposes

Overrides:

toString in class Header

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Manual serialization

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Manual deserialization

java.io.IOException

java.lang.ClassNotFoundException