dist1.acb.CBL
Class Replica

java.lang.Object
  dist1.acb.CBL.Replica

All Implemented Interfaces:

java.io.Serializable

public class Replica

extends java.lang.Object

implements java.io.Serializable

Replica

Version:

$Revision: 1.7 $

Author:

Alexander Stasiv

See Also:

Serialized Form

Constructor Summary

Replica(java.lang.String login, RequestUpdate request)
Creates a new instance of Replica

Method Summary

static void	applyReplicas(Replica[] replicas, UpdatesExecutor executor) Applies replicas for current server using provided executor
boolean	equals(java.lang.Object obj) Indicates whether some other object is "equal to" this one.
Id	getId() Getter for property id.
java.lang.String	getLogin() Getter for property login.
static java.util.LinkedList	getMissingReplicas(java.util.List replicas, Id lastReplicaId) Returns missing list from replicas
static Id	getNextId() Getter for property nextId.
RequestUpdate	getRequest() Getter for property request.
static boolean	isBContinueOfA(java.util.LinkedList a, java.util.LinkedList b) Checks if list of replicas B is continue of list A
static void	resetId() Reset counter of IDs to start point
void	setLogin(java.lang.String login) Setter for property login.
void	setRequest(RequestUpdate request) Setter for property request.
java.lang.String	toString() Returns string description of the object

Methods inherited from class java.lang.Object

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

Constructor Detail

Replica

public Replica(java.lang.String login,
               RequestUpdate request)

Creates a new instance of Replica

Parameters:

login - Login of the user which initiate the update

request - Request for update

Method Detail

equals

public boolean equals(java.lang.Object obj)

Indicates whether some other object is "equal to" this one.

Parameters:

obj - the reference object with which to compare

Returns:

true if this object is the same as the obj argument (they have same Id); false otherwise

isBContinueOfA

public static boolean isBContinueOfA(java.util.LinkedList a,
                                     java.util.LinkedList b)

Checks if list of replicas B is continue of list A

Parameters:

a - List A

b - List B

Returns:

true, if next ID of last element in A equals ID of first element in B

getMissingReplicas

public static java.util.LinkedList getMissingReplicas(java.util.List replicas,
                                                      Id lastReplicaId)

Returns missing list from replicas

Parameters:

replicas - "Full list"

lastReplicaId - last present replica

Returns:

New LinkedList

Throws:

java.util.NoSuchElementException - if the replicas which is needed was not found

resetId

public static void resetId()

Reset counter of IDs to start point

setLogin

public void setLogin(java.lang.String login)

Setter for property login.

Parameters:

login - New value of property login.

getLogin

public java.lang.String getLogin()

Getter for property login.

Returns:

Value of property login.

getNextId

public static Id getNextId()

Getter for property nextId.

Returns:

Value of property nextId.

getId

public Id getId()

Getter for property id.

Returns:

Value of property id.

setRequest

public void setRequest(RequestUpdate request)

Setter for property request.

Parameters:

request - New value of property request.

getRequest

public RequestUpdate getRequest()

Getter for property request.

Returns:

Value of property request.

applyReplicas

public static void applyReplicas(Replica[] replicas,
                                 UpdatesExecutor executor)
                          throws java.lang.Exception

Applies replicas for current server using provided executor

Parameters:

replicas - An arrany of replicas to execute

executor - Real executor of replicas

Throws:

java.lang.Exception - if an error has occured during applying the replicas

toString

public java.lang.String toString()

Returns string description of the object

Returns:

String description of the object