Package org.opends.server.replication.plugin

Class AttrHistoricalSingle

java.lang.Object

org.opends.server.replication.plugin.AttrHistorical

org.opends.server.replication.plugin.AttrHistoricalSingle

public class AttrHistoricalSingle
extends AttrHistorical

This class is used to store historical information for single valued attributes. One object of this type is created for each attribute that was changed in the entry. It allows to record the last time a given value was added, and the last time the whole attribute was deleted.

Method Summary

Modifier and Type	Method	Description
void	assign(org.opends.server.replication.plugin.HistoricalAttributeValue histVal)	Assign the provided historical value to this object.
boolean	containsAddedValue(ByteString value)	Returns true if this historical information contains add or replace meta-data for the provided attribute value.
CSN	getDeleteTime()	Returns the last time when this attribute was deleted.
Set<AttrValueHistorical>	getValuesHistorical()	Get the historical informations for this attribute Info.
void	processLocalOrNonConflictModification(CSN csn, Modification mod)	This method calculates the historical information and update the hist attribute to store the historical information for modify operation that does not conflict with previous operation.
Modification	replayOperation(CSN csn, Entry modifiedEntry, Modification mod)	This method will be called when replaying an operation.
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

getDeleteTime

public CSN getDeleteTime()

Description copied from class: AttrHistorical

Returns the last time when this attribute was deleted.

Specified by:

getDeleteTime in class AttrHistorical

Returns:

the last time when this attribute was deleted

getValuesHistorical

public Set<AttrValueHistorical> getValuesHistorical()

Description copied from class: AttrHistorical

Get the historical informations for this attribute Info.

Specified by:

getValuesHistorical in class AttrHistorical

Returns:

the historical informations

containsAddedValue

public boolean containsAddedValue(ByteString value)

Description copied from class: AttrHistorical

Returns true if this historical information contains add or replace meta-data for the provided attribute value.

Specified by:

containsAddedValue in class AttrHistorical

Parameters:

value - The attribute value.

Returns:

true if this historical information contains add or replace meta-data for the provided attribute value.

processLocalOrNonConflictModification

public void processLocalOrNonConflictModification(CSN csn,
                                                  Modification mod)

Description copied from class: AttrHistorical

This method calculates the historical information and update the hist attribute to store the historical information for modify operation that does not conflict with previous operation. This is the usual path and should therefore be optimized.

It does not check if the operation to process is conflicting or not with previous operations. The caller is responsible for this.

Specified by:

processLocalOrNonConflictModification in class AttrHistorical

Parameters:

csn - The CSN of the operation to process

mod - The modify operation to process.

replayOperation

public Modification replayOperation(CSN csn,
                                    Entry modifiedEntry,
                                    Modification mod)

Description copied from class: AttrHistorical

This method will be called when replaying an operation. It should use whatever historical information is stored in this class to solve the conflict and return the modification that will actually have to be replayed.

Specified by:

replayOperation in class AttrHistorical

Parameters:

csn - The CSN associated to the operation.

modifiedEntry - The entry modified by this operation.

mod - The modification.

Returns:

The modification which should be replayed, or null if the modification should not be replayed.

assign

public void assign(org.opends.server.replication.plugin.HistoricalAttributeValue histVal)

Description copied from class: AttrHistorical

Assign the provided historical value to this object.

Specified by:

assign in class AttrHistorical

Parameters:

histVal - the historical value

toString

public String toString()

Overrides:

toString in class Object