org.onosproject.store.service.impl

Class DatabaseEntryExpirationTracker

java.lang.Object

org.onosproject.store.service.impl.DatabaseEntryExpirationTracker

All Implemented Interfaces:

net.kuujo.copycat.event.EventHandler<net.kuujo.copycat.event.LeaderElectEvent>, DatabaseUpdateEventListener

public class DatabaseEntryExpirationTracker
extends Object
implements DatabaseUpdateEventListener, net.kuujo.copycat.event.EventHandler<net.kuujo.copycat.event.LeaderElectEvent>

Plugs into the database update stream and track the TTL of entries added to the database. For tables with pre-configured finite TTL, this class has mechanisms for expiring (deleting) old, expired entries from the database.

Method Summary

Modifier and Type	Method and Description
void	handle(net.kuujo.copycat.event.LeaderElectEvent event)
void	snapshotInstalled(DatabaseStateMachine.State state) Notifies listeners of a snapshot installation event.
void	tableCreated(DatabaseStateMachine.TableMetadata metadata) Notifies listeners of a table created event.
void	tableDeleted(String tableName) Notifies listeners of a table deleted event.
void	tableModified(TableModificationEvent event) Notifies listeners of a table modified event.

Methods inherited from class java.lang.Object

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

Method Detail

tableModified

public void tableModified(TableModificationEvent event)

Description copied from interface: DatabaseUpdateEventListener

Notifies listeners of a table modified event.

Specified by:

tableModified in interface DatabaseUpdateEventListener

Parameters:

event - table modification event.

tableCreated

public void tableCreated(DatabaseStateMachine.TableMetadata metadata)

Description copied from interface: DatabaseUpdateEventListener

Notifies listeners of a table created event.

Specified by:

tableCreated in interface DatabaseUpdateEventListener

Parameters:

metadata - metadata for the created table.

tableDeleted

public void tableDeleted(String tableName)

Description copied from interface: DatabaseUpdateEventListener

Notifies listeners of a table deleted event.

Specified by:

tableDeleted in interface DatabaseUpdateEventListener

Parameters:

tableName - name of the table deleted

handle

public void handle(net.kuujo.copycat.event.LeaderElectEvent event)

Specified by:

handle in interface net.kuujo.copycat.event.EventHandler<net.kuujo.copycat.event.LeaderElectEvent>

snapshotInstalled

public void snapshotInstalled(DatabaseStateMachine.State state)

Description copied from interface: DatabaseUpdateEventListener

Notifies listeners of a snapshot installation event.

Specified by:

snapshotInstalled in interface DatabaseUpdateEventListener

Parameters:

state - installed snapshot state.