Class FD_SOCK.FdHeader

java.lang.Object

org.jgroups.Header

org.jgroups.protocols.FD_SOCK.FdHeader

All Implemented Interfaces:

Externalizable, Serializable, Streamable

Enclosing class:

FD_SOCK

public static class FD_SOCK.FdHeader
extends Header
implements Streamable

Version:

$Id: FD_SOCK.java,v 1.83.2.7 2009/02/05 16:22:00 vlada Exp $

Author:

Bela Ban May 29 2001

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final byte	GET_CACHE
static final byte	GET_CACHE_RSP
static final byte	I_HAVE_SOCK
static final byte	SUSPECT
static final byte	WHO_HAS_SOCK

Fields inherited from class Header

HDR_OVERHEAD

Constructor Summary

Constructors

Constructor	Description
FdHeader()
FdHeader(byte type)
FdHeader(byte type, Map<Address, IpAddress> cachedAddrs)
FdHeader(byte type, Set<Address> mbrs)
FdHeader(byte type, Address mbr)
FdHeader(byte type, Address mbr, IpAddress sock_addr)

Method Summary

Modifier and Type	Method	Description
void	readExternal(ObjectInput in)
void	readFrom(DataInputStream 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	type2String(byte type)
void	writeExternal(ObjectOutput out)
void	writeTo(DataOutputStream out)	Write the entire state of the current object (including superclasses) to outstream.

Methods inherited from class Object

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

Field Details

SUSPECT

public static final byte SUSPECT

See Also:

• Constant Field Values

WHO_HAS_SOCK

public static final byte WHO_HAS_SOCK

See Also:

• Constant Field Values

I_HAVE_SOCK

public static final byte I_HAVE_SOCK

See Also:

• Constant Field Values

GET_CACHE

public static final byte GET_CACHE

See Also:

• Constant Field Values

GET_CACHE_RSP

public static final byte GET_CACHE_RSP

See Also:

• Constant Field Values

Constructor Details

FdHeader

public FdHeader()

FdHeader

public FdHeader(byte type)

FdHeader

public FdHeader(byte type,
 Address mbr)

FdHeader

public FdHeader(byte type,
 Address mbr,
 IpAddress sock_addr)

FdHeader

public FdHeader(byte type,
 Set<Address> mbrs)

FdHeader

public FdHeader(byte type,
 Map<Address, IpAddress> cachedAddrs)

Method Details

toString

public String toString()

Overrides:

toString in class Header

type2String

public static String type2String(byte type)

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

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.

Overrides:

size in class Header

writeTo

public void writeTo(DataOutputStream out)
             throws IOException

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

Specified by:

writeTo in interface Streamable

Throws:

IOException

readFrom

public void readFrom(DataInputStream in)
              throws IOException,
IllegalAccessException,
InstantiationException

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

Specified by:

readFrom in interface Streamable

Throws:

IOException

IllegalAccessException

InstantiationException