org.jgroups.protocols

Class FragHeader

java.lang.Object

org.jgroups.Header

org.jgroups.protocols.FragHeader

All Implemented Interfaces:

Streamable

public class FragHeader
extends Header

Author:

Bela Ban

Field Summary

Fields

Modifier and Type	Field and Description
int	frag_id
long	id
int	num_frags

Fields inherited from class org.jgroups.Header

prot_id

Constructor Summary

Constructors

Constructor and Description
FragHeader()
FragHeader(long id, int frag_id, int num_frags)

Method Summary

Modifier and Type	Method and Description
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

id

public long id

frag_id

public int frag_id

num_frags

public int num_frags

Constructor Detail

FragHeader

public FragHeader()

FragHeader

public FragHeader(long id,
                  int frag_id,
                  int num_frags)

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class Header

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

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

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