cgl.narada.service.reliable.events
Class RdArchivalServiceNotification

java.lang.Object
  cgl.narada.service.reliable.events.RdArchivalServiceNotification

All Implemented Interfaces:

Comparator

public class RdArchivalServiceNotification
extends Object
implements Comparator

This class encapsulates the notification issued by the reliable service after it has archived an event. Among other things, the event contains information pertaining to (a) The event id of the archived event (b) The sequence number of the archived event (c) The sequence number of previously archived events (d) The template id

Constructor Summary

RdArchivalServiceNotification(byte[] marshalledBytes)
Reconstruction of the event from the serialized byte stream representation

RdArchivalServiceNotification(int templateId, EventID eventId, long sequenceNumber, long previousSequenceNumber)

Method Summary

int	compare(Object one, Object two) For this implementation it is assumed that the entity id and template id of the compared objects are the same.
boolean	equals(Object obj) For this implementation it is assumed that the entity id and template id of the compared object is the same
byte[]	getBytes() Create a serialized representation of the byte stream
EventID	getEventId() Retriev the event identifier of the archived event
long	getPreviousSequenceNumber() Retrieves the previous sequence number for this event
long	getSequenceNumber() Retrieves the sequence number for this event
int	getTemplateId() Retrieves the templateId of the archived event
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

RdArchivalServiceNotification

public RdArchivalServiceNotification(int templateId,
                                     EventID eventId,
                                     long sequenceNumber,
                                     long previousSequenceNumber)

RdArchivalServiceNotification

public RdArchivalServiceNotification(byte[] marshalledBytes)

Reconstruction of the event from the serialized byte stream representation

Method Detail

getTemplateId

public int getTemplateId()

Retrieves the templateId of the archived event

getEventId

public EventID getEventId()

Retriev the event identifier of the archived event

getSequenceNumber

public long getSequenceNumber()

Retrieves the sequence number for this event

getPreviousSequenceNumber

public long getPreviousSequenceNumber()

Retrieves the previous sequence number for this event

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

For this implementation it is assumed that the entity id and template id of the compared object is the same

Specified by:

equals in interface Comparator

Overrides:

equals in class Object

compare

public int compare(Object one,
                   Object two)

For this implementation it is assumed that the entity id and template id of the compared objects are the same. We only deal with the catenation numbers here. This plays a role in the SortedSet being maintain in the RdsEventPercolator

Specified by:

compare in interface Comparator

getBytes

public byte[] getBytes()

Create a serialized representation of the byte stream