org.planx.xmlstore.routing.operation
Class OriginMessage

java.lang.Object
  org.planx.xmlstore.routing.operation.OriginMessage

All Implemented Interfaces:

Message, Streamable

Direct Known Subclasses:

AcknowledgeMessage, ConnectMessage, DataMessage, HashMessage, HashRequestMessage, LookupMessage, NodeReplyMessage, RemoveMessage, StoreRequestMessage

public abstract class OriginMessage
extends Object
implements Message

A message containing the origin node. This class can be subclassed to implement messages that contain more information.

Field Summary

protected Node

origin

Constructor Summary

protected	OriginMessage()
	OriginMessage(DataInput in)
	OriginMessage(Node origin)

Method Summary

abstract byte	code() The unique code for the message type, used to differentiate all messages from each other.
void	fromStream(DataInput in) Reads the internal state of the Streamable object from the input stream.
Node	getOrigin()
void	toStream(DataOutput out) Writes the internal state of the Streamable object to the output stream in a format that can later be read by the same Streamble class using the Streamable.fromStream(java.io.DataInput) method.

Methods inherited from class java.lang.Object

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

Field Detail

origin

protected Node origin

Constructor Detail

OriginMessage

protected OriginMessage()

OriginMessage

public OriginMessage(Node origin)

OriginMessage

public OriginMessage(DataInput in)
              throws IOException

Throws:

IOException

Method Detail

fromStream

public void fromStream(DataInput in)
                throws IOException

Description copied from interface: Streamable

Reads the internal state of the Streamable object from the input stream. Immutable objects should throw an UnsupportedOperationException, and instead implement a constructor as described above.

Specified by:

fromStream in interface Streamable

Throws:

IOException

toStream

public void toStream(DataOutput out)
              throws IOException

Description copied from interface: Streamable

Writes the internal state of the Streamable object to the output stream in a format that can later be read by the same Streamble class using the Streamable.fromStream(java.io.DataInput) method.

Specified by:

toStream in interface Streamable

Throws:

IOException

getOrigin

public Node getOrigin()

code

public abstract byte code()

Description copied from interface: Message

The unique code for the message type, used to differentiate all messages from each other. Since this is of byte type there can be at most 256 different message types.

Specified by:

code in interface Message