org.jgroups.protocols

Class SEQUENCER2.SequencerHeader

java.lang.Object

org.jgroups.Header

org.jgroups.protocols.SEQUENCER2.SequencerHeader

All Implemented Interfaces:

Streamable

Enclosing class:

SEQUENCER2

public static class SEQUENCER2.SequencerHeader
extends Header

Field Summary

Fields

Modifier and Type	Field and Description
protected static byte	BCAST
protected int	num_seqnos
protected static byte	REQUEST
protected static byte	RESPONSE
protected long	seqno
protected byte	type

Fields inherited from class org.jgroups.Header

prot_id

Constructor Summary

Constructors

Constructor and Description
SequencerHeader()
SequencerHeader(byte type)
SequencerHeader(byte type, long seqno)
SequencerHeader(byte type, long seqno, int num_seqnos)

Method Summary

Modifier and Type	Method and Description
long	getSeqno()
protected java.lang.String	printType()
void	readFrom(java.io.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.
java.lang.String	toString()
void	writeTo(java.io.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

REQUEST

protected static final byte REQUEST

See Also:

Constant Field Values

BCAST

protected static final byte BCAST

See Also:

Constant Field Values

RESPONSE

protected static final byte RESPONSE

See Also:

Constant Field Values

type

protected byte type

seqno

protected long seqno

num_seqnos

protected int num_seqnos

Constructor Detail

SequencerHeader

public SequencerHeader()

SequencerHeader

public SequencerHeader(byte type)

SequencerHeader

public SequencerHeader(byte type,
                       long seqno)

SequencerHeader

public SequencerHeader(byte type,
                       long seqno,
                       int num_seqnos)

Method Detail

getSeqno

public long getSeqno()

toString

public java.lang.String toString()

Overrides:

toString in class Header

printType

protected final java.lang.String printType()

writeTo

public void writeTo(java.io.DataOutput out)
             throws java.lang.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:

java.lang.Exception

readFrom

public void readFrom(java.io.DataInput in)
              throws java.lang.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:

java.lang.Exception

size

public 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