Package com.tangosol.io.journal

Class JournalService

java.lang.Object

com.tangosol.io.journal.JournalService

All Implemented Interfaces:

Disposable, AutoCloseable

public class JournalService
extends Object
implements Disposable

A JournalService manages the lifecycle for the RamJournalRM, FlashJournalRM, and the BackupJournalRM.

Since:

Coherence 3.7

Author:

cf 2010.12.10

Field Summary

Fields

Modifier and Type	Field	Description
protected final Lock	f_lock	The lock that should be used to control concurrent access to this Journal Services.
protected static final Lock	JOURNAL_SERVICE_LOCK	The lock that should be used to control concurrent access to all Journal Services.
static final String	JOURNAL_SERVICE_NAME	The name of the JournalService as a registered resource.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	JournalService(Cluster cluster)	Construct the JournalService associated with the specified Cluster.

Method Summary

Modifier and Type	Method	Description
void	dispose()	Shut down and release the RAM, flash and backup Journal Resource Managers.
BackupJournalRM	ensureBackupJournalRM()	Ensure there is a configured BackupJournalRM.
FlashJournalRM	ensureFlashJournalRM()	Ensure there is a configured FlashJournalRM.
static JournalService	ensureJournalService(Cluster cluster)	Ensure the JournalService is registered as a cluster resource.
RamJournalRM	ensureRamJournalRM()	Ensure there is a configured RAMJournalRM.
Cluster	getCluster()	Returns the Cluster for which this JournalService is storing data.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oracle.coherence.common.base.Disposable

close

Field Details

JOURNAL_SERVICE_NAME

public static final String JOURNAL_SERVICE_NAME

The name of the JournalService as a registered resource.

See Also:

• Constant Field Values

f_lock

protected final Lock f_lock

The lock that should be used to control concurrent access to this Journal Services.

JOURNAL_SERVICE_LOCK

protected static final Lock JOURNAL_SERVICE_LOCK

The lock that should be used to control concurrent access to all Journal Services.

Constructor Details

JournalService

protected JournalService(Cluster cluster)

Construct the JournalService associated with the specified Cluster.

Parameters:

cluster - the Cluster for which the JournalService is storing data

Method Details

dispose

public void dispose()

Shut down and release the RAM, flash and backup Journal Resource Managers.

Specified by:

dispose in interface Disposable

Since:

Coherence 3.7

ensureJournalService

public static JournalService ensureJournalService(Cluster cluster)

Ensure the JournalService is registered as a cluster resource.

Parameters:

cluster - the Cluster for which the JournalService is storing data

Returns:

the JournalService

ensureFlashJournalRM

public FlashJournalRM ensureFlashJournalRM()

Ensure there is a configured FlashJournalRM.

Returns:

a FlashJournalRM for use

Since:

Coherence 3.7

ensureRamJournalRM

public RamJournalRM ensureRamJournalRM()

Ensure there is a configured RAMJournalRM.

Returns:

a RamJournalRM to be used

Since:

Coherence 3.7

ensureBackupJournalRM

public BackupJournalRM ensureBackupJournalRM()

Ensure there is a configured BackupJournalRM.

Returns:

a BackupJournalRM to be used

Since:

Coherence 3.7.1

getCluster

public Cluster getCluster()

Returns the Cluster for which this JournalService is storing data.

Returns:

the Cluster