org.jgroups.protocols

Class NakAckHeader

java.lang.Object

org.jgroups.Header

org.jgroups.protocols.NakAckHeader

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable

public class NakAckHeader
extends Header

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	NAK_ACK_MSG
static int	NAK_ACK_RSP
static int	NAK_MSG
static int	OUT_OF_BAND_MSG
static int	OUT_OF_BAND_RSP
static int	RETRANSMIT_MSG
static int	WRAPPED_MSG

Fields inherited from class org.jgroups.Header

HDR_OVERHEAD

Constructor Summary

Constructors

Constructor and Description
NakAckHeader()
NakAckHeader(int type, long seqno, ViewId vid)

Method Summary

Methods

Modifier and Type	Method and Description
NakAckHeader	copy()
void	readExternal(java.io.ObjectInput in)
long	size() To be implemented by subclasses.
java.lang.String	toString()
static java.lang.String	type2Str(int t)
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class java.lang.Object

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

Field Detail

NAK_MSG

public static final int NAK_MSG

See Also:

Constant Field Values

NAK_ACK_MSG

public static final int NAK_ACK_MSG

See Also:

Constant Field Values

WRAPPED_MSG

public static final int WRAPPED_MSG

See Also:

Constant Field Values

RETRANSMIT_MSG

public static final int RETRANSMIT_MSG

See Also:

Constant Field Values

NAK_ACK_RSP

public static final int NAK_ACK_RSP

See Also:

Constant Field Values

OUT_OF_BAND_MSG

public static final int OUT_OF_BAND_MSG

See Also:

Constant Field Values

OUT_OF_BAND_RSP

public static final int OUT_OF_BAND_RSP

See Also:

Constant Field Values

Constructor Detail

NakAckHeader

public NakAckHeader()

NakAckHeader

public NakAckHeader(int type,
            long seqno,
            ViewId vid)

Method Detail

size

public long size()

Description copied from class: Header

To be implemented by subclasses. Return the size of this object for the serialized version of it. I.e. how many bytes this object takes when flattened into a buffer. This may be different for each instance, or can be the same. This may also just be an estimation. E.g. FRAG uses it on Message to determine whether or not to fragment the message. Fragmentation itself will be accurate, because the entire message will actually be serialized into a byte buffer, so we can determine the exact size.

Overrides:

size in class Header

writeExternal

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

Throws:

java.io.IOException

readExternal

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

Throws:

java.io.IOException

java.lang.ClassNotFoundException

copy

public NakAckHeader copy()

type2Str

public static java.lang.String type2Str(int t)

toString

public java.lang.String toString()

Overrides:

toString in class Header