org.jgroups.protocols

Class UNICAST.UnicastHeader

java.lang.Object

org.jgroups.Header

org.jgroups.protocols.UNICAST.UnicastHeader

All Implemented Interfaces:

Streamable

Enclosing class:

UNICAST

public static class UNICAST.UnicastHeader
extends Header

The following types and fields are serialized:

 | DATA | seqno | conn_id | first |
 | ACK  | seqno |
 | SEND_FIRST_SEQNO |
 

Field Summary

Fields

Modifier and Type	Field and Description
static byte	ACK
static byte	DATA
static byte	SEND_FIRST_SEQNO

Fields inherited from class org.jgroups.Header

prot_id

Constructor Summary

Constructors

Modifier	Constructor and Description
	UnicastHeader()
protected	UnicastHeader(byte type, long seqno)
protected	UnicastHeader(byte type, long seqno, short conn_id, boolean first)

Method Summary

Modifier and Type	Method and Description
UNICAST.UnicastHeader	copy()
static UNICAST.UnicastHeader	createAckHeader(long seqno, short conn_id)
static UNICAST.UnicastHeader	createDataHeader(long seqno, short conn_id, boolean first)
static UNICAST.UnicastHeader	createSendFirstSeqnoHeader(long seqno_received)
long	getSeqno()
void	readFrom(DataInput in) Read the state of the current object (including superclasses) from instream Note that the input stream must not be closed
int	size() To be implemented by subclasses.
String	toString()
static String	type2Str(byte t)
void	writeTo(DataOutput out) Write the entire state of the current object (including superclasses) to outstream.

Methods inherited from class org.jgroups.Header

getProtId, setProtId

Methods inherited from class java.lang.Object

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

Field Detail

DATA

public static final byte DATA

See Also:

Constant Field Values

ACK

public static final byte ACK

See Also:

Constant Field Values

SEND_FIRST_SEQNO

public static final byte SEND_FIRST_SEQNO

See Also:

Constant Field Values

Constructor Detail

UnicastHeader

public UnicastHeader()

UnicastHeader

protected UnicastHeader(byte type,
                        long seqno)

UnicastHeader

protected UnicastHeader(byte type,
                        long seqno,
                        short conn_id,
                        boolean first)

Method Detail

createDataHeader

public static UNICAST.UnicastHeader createDataHeader(long seqno,
                                                     short conn_id,
                                                     boolean first)

createAckHeader

public static UNICAST.UnicastHeader createAckHeader(long seqno,
                                                    short conn_id)

createSendFirstSeqnoHeader

public static UNICAST.UnicastHeader createSendFirstSeqnoHeader(long seqno_received)

getSeqno

public long getSeqno()

toString

public String toString()

Overrides:

toString in class Header

type2Str

public static String type2Str(byte t)

size

public final int 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.

Specified by:

size in class Header

copy

public UNICAST.UnicastHeader copy()

writeTo

public void writeTo(DataOutput out)
             throws Exception

Description copied from interface: Streamable

Write the entire state of the current object (including superclasses) to outstream. Note that the output stream must not be closed

Throws:

Exception

readFrom

public void readFrom(DataInput in)
              throws Exception

Description copied from interface: Streamable

Read the state of the current object (including superclasses) from instream Note that the input stream must not be closed

Throws:

Exception