Package com.oracle.coherence.concurrent.internal

Class Cleaner

java.lang.Object

com.oracle.coherence.concurrent.internal.Cleaner

All Implemented Interfaces:

EventDispatcherAwareInterceptor<TransferEvent>, EventInterceptor<TransferEvent>, MemberListener, EventListener

public class Cleaner
extends Object
implements MemberListener, EventDispatcherAwareInterceptor<TransferEvent>

This Cleaner is triggered by members leaving the service or partitions arriving at this member, and is used to release locks and semaphore permits held by the departed members.

Author:

Harvey Raja 2021.08.19, Aleks Seovic 2021.10.26

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	Cleaner.CheckHoldersRunnable	A Runnable that fires an AsynchronousProcessor to validate lock holders.

Field Summary

Fields

Modifier and Type	Field	Description
protected PartitionSet	m_partsCheck	A PartitionSet to fire the check against.
protected String	m_sServiceName	The service name.

Constructor Summary

Constructors

Constructor	Description
Cleaner()

Method Summary

Modifier and Type	Method	Description
protected void	enqueueUpdate(int iPartition, int cParts)	Enqueue the provided partition and cache names for a 'clean up'.
void	introduceEventDispatcher(String sIdentifier, EventDispatcher dispatcher)
void	memberJoined(MemberEvent evt)
void	memberLeaving(MemberEvent evt)
void	memberLeft(MemberEvent evt)
void	onEvent(TransferEvent event)

Methods inherited from class java.lang.Object

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

Field Detail

m_sServiceName

protected volatile String m_sServiceName

The service name.

m_partsCheck

protected volatile PartitionSet m_partsCheck

A PartitionSet to fire the check against.

Constructor Detail

Cleaner

public Cleaner()

Method Detail

onEvent

public void onEvent(TransferEvent event)

Specified by:

onEvent in interface EventInterceptor<TransferEvent>

introduceEventDispatcher

public void introduceEventDispatcher(String sIdentifier,
                                     EventDispatcher dispatcher)

Specified by:

introduceEventDispatcher in interface EventDispatcherAwareInterceptor<TransferEvent>

memberJoined

public void memberJoined(MemberEvent evt)

Specified by:

memberJoined in interface MemberListener

memberLeaving

public void memberLeaving(MemberEvent evt)

Specified by:

memberLeaving in interface MemberListener

memberLeft

public void memberLeft(MemberEvent evt)

Specified by:

memberLeft in interface MemberListener

enqueueUpdate

protected void enqueueUpdate(int iPartition,
                             int cParts)

Enqueue the provided partition and cache names for a 'clean up'.

The clean up is fired on a background thread allowing bundling of subsequently enqueued partitions. The background thread is fired 1s after the first enqueue.

Parameters:

iPartition - the partition to enqueue

cParts - the number of partitions in the associated service