org.apache.directory.shared.ldap.csn

Class CsnFactory

java.lang.Object

org.apache.directory.shared.ldap.csn.CsnFactory

public class CsnFactory
extends Object

Generates a new Csn.

Author:

Apache Directory Project

Constructor Summary

Constructors

Constructor and Description
CsnFactory(int replicaId)

Method Summary

Modifier and Type	Method and Description
Csn	newInstance() Returns a new Csn.
Csn	newInstance(long timestamp, int changeCount) Returns a new Csn created from the given values.
Csn	newPurgeCsn(long expirationDate) Generates a CSN used to purge data.

Methods inherited from class java.lang.Object

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

Constructor Detail

CsnFactory

public CsnFactory(int replicaId)

Method Detail

newInstance

public Csn newInstance()

Returns a new Csn. Generated CSN can be duplicate if user generates CSNs more than 2G times a milliseconds.

newInstance

public Csn newInstance(long timestamp,
                       int changeCount)

Returns a new Csn created from the given values. This method is not to be used except for test purposes.

Parameters:

timestamp - The timestamp to use

replicaId - Replica ID. ReplicaID must be 1-3 digit value

changeCount - The change count to use

newPurgeCsn

public Csn newPurgeCsn(long expirationDate)

Generates a CSN used to purge data. Its replicaID is not associated to a server.

Parameters:

expirationDate - The time up to the first CSN we want to keep