org.jgroups.protocols
Class FD.FdHeader

java.lang.Object
  extended by org.jgroups.Header
      extended by org.jgroups.protocols.FD.FdHeader
All Implemented Interfaces:
Streamable
Enclosing class:
FD

public static class FD.FdHeader
extends Header


Field Summary
protected  Address from
           
static byte HEARTBEAT
           
static byte HEARTBEAT_ACK
           
protected  java.util.Collection<Address> mbrs
           
static byte SUSPECT
           
protected  byte type
           
 
Constructor Summary
FD.FdHeader()
           
FD.FdHeader(byte type)
           
FD.FdHeader(byte type, java.util.Collection<Address> mbrs, Address from)
           
 
Method Summary
 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 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

HEARTBEAT

public static final byte HEARTBEAT
See Also:
Constant Field Values

HEARTBEAT_ACK

public static final byte HEARTBEAT_ACK
See Also:
Constant Field Values

SUSPECT

public static final byte SUSPECT
See Also:
Constant Field Values

type

protected byte type

mbrs

protected java.util.Collection<Address> mbrs

from

protected Address from
Constructor Detail

FD.FdHeader

public FD.FdHeader()

FD.FdHeader

public FD.FdHeader(byte type)

FD.FdHeader

public FD.FdHeader(byte type,
                   java.util.Collection<Address> mbrs,
                   Address from)
Method Detail

toString

public java.lang.String toString()
Overrides:
toString in class Header

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

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


Copyright © 1998-2012 Bela Ban / Red Hat. All Rights Reserved.