JavaGroups
Class Message

java.lang.Object
  |
  +--JavaGroups.Message

public class Message

extends java.lang.Object

implements java.io.Externalizable

See Also:

Serialized Form

Constructor Summary

Message()

Message(java.lang.Object dest, java.lang.Object src, byte[] buf)
Public constructor

Message(java.lang.Object dest, java.lang.Object src, java.lang.Object obj)
Public constructor

Method Summary

void	AddHeader(java.lang.Object hdr)
Message	Copy()
byte[]	GetBuffer()
java.lang.Object	GetDest()
Stack	GetHeaders()
java.lang.Object	GetObject()
java.lang.Object	GetSrc()
static void	main(java.lang.String[] args)
Message	MakeReply()
java.lang.Object	PeekHeader()
java.lang.String	PrintObjectHeaders()
void	readExternal(java.io.ObjectInput in)
java.lang.Object	RemoveHeader()
void	RemoveHeaders()
void	SetBuffer(byte[] b)
void	SetDest(java.lang.Object new_dest)
void	SetHeaders(Stack h)
void	SetObject(java.lang.Object obj)
void	SetSrc(java.lang.Object new_src)
long	Size() Returns size of buffer plus size of all headers plus a fixed overhead (other fields of Message, marshaling code etc.
java.lang.String	toString()
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Message

public Message(java.lang.Object dest,
               java.lang.Object src,
               byte[] buf)

Public constructor

Parameters:

dest - Address of receiver. If it is null or a string, then it is sent to the group (either to current group or to the group as given in the string). If it is a Vector, then it contains a number of addresses to which it must be sent. Otherwise, it contains a single destination.

Addresses are generally untyped (all are of type Object. A channel instance must know what types of addresses it expects and downcast accordingly.

src - Address of sender

buf - Message to be sent

Message

public Message(java.lang.Object dest,
               java.lang.Object src,
               java.lang.Object obj)

Public constructor

Parameters:

dest - Address of receiver. If it is null or a string, then it is sent to the group (either to current group or to the group as given in the string). If it is a Vector, then it contains a number of addresses to which it must be sent. Otherwise, it contains a single destination.

Addresses are generally untyped (all are of type Object. A channel instance must know what types of addresses it expects and downcast accordingly.

src - Address of sender

obj - The object will be serialized into the byte buffer. Object has to be serializable !

Message

public Message()

Method Detail

GetDest

public java.lang.Object GetDest()

SetDest

public void SetDest(java.lang.Object new_dest)

GetSrc

public java.lang.Object GetSrc()

SetSrc

public void SetSrc(java.lang.Object new_src)

GetBuffer

public byte[] GetBuffer()

SetBuffer

public void SetBuffer(byte[] b)

GetHeaders

public Stack GetHeaders()

SetHeaders

public void SetHeaders(Stack h)

SetObject

public void SetObject(java.lang.Object obj)

GetObject

public java.lang.Object GetObject()

AddHeader

public void AddHeader(java.lang.Object hdr)

RemoveHeader

public java.lang.Object RemoveHeader()

RemoveHeaders

public void RemoveHeaders()

PeekHeader

public java.lang.Object PeekHeader()

Copy

public Message Copy()

MakeReply

public Message MakeReply()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Size

public long Size()

Returns size of buffer plus size of all headers plus a fixed overhead (other fields of Message, marshaling code etc.

PrintObjectHeaders

public java.lang.String PrintObjectHeaders()

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

main

public static void main(java.lang.String[] args)