Package fish.payara.nucleus.hazelcast

Class HazelcastCore

java.lang.Object

fish.payara.nucleus.hazelcast.HazelcastCore

All Implemented Interfaces:

EventListener, ConfigListener

@Service(name="hazelcast-core")
@RunLevel(10)
public class HazelcastCore
extends Object
implements EventListener, ConfigListener

The core class for using Hazelcast in Payara

Since:

4.1.151

Author:

Steve Millidge (Payara Foundation)

Nested Class Summary

Nested classes/interfaces inherited from interface org.glassfish.api.event.EventListener

EventListener.Event<T>

Field Summary

Fields

Modifier and Type	Field	Description
static String	CLUSTER_EXECUTOR_SERVICE_NAME
static String	INSTANCE_ATTRIBUTE
static String	INSTANCE_ATTRIBUTE_MAP
static String	INSTANCE_GROUP_ATTRIBUTE
static String	SCHEDULED_CLUSTER_EXECUTOR_SERVICE_NAME

Constructor Summary

Constructors

Constructor	Description
HazelcastCore()

Method Summary

Modifier and Type	Method	Description
UnprocessedChangeEvents	changed(PropertyChangeEvent[] pces)	Notification that @Configured objects that were injected have changed
void	event(EventListener.Event event)	Process a Glassfish/Payara event
String	getAttribute(UUID memberUUID, String key)
Map<String,String>	getAttributes(UUID memberUUID)
javax.cache.spi.CachingProvider	getCachingProvider()	Gets the JCache provider used by Hazelcast
static HazelcastCore	getCore()	Returns the version of the object that has been instantiated.
com.hazelcast.core.HazelcastInstance	getInstance()	Gets the actual Hazelcast instance.
String	getMemberGroup()	Gets the name of the member group that this instance belongs to
String	getMemberName()	Returns the Hazelcast name of the instance
int	getPort()	Gets the port that Hazelcast in running on
UUID	getUUID()	Returns the UUID of the instance.
boolean	isDatagridEncryptionEnabled()
boolean	isEnabled()
boolean	isLite()	Returns true if this instance is a Hazelcast Lite instance
void	postConstruct()
void	setAttribute(UUID memberUUID, String key, String value)
void	setEnabled(Boolean enabled)	Sets whether Hazelcast should be enabled.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE_ATTRIBUTE_MAP

public static final String INSTANCE_ATTRIBUTE_MAP

See Also:

Constant Field Values

INSTANCE_ATTRIBUTE

public static final String INSTANCE_ATTRIBUTE

See Also:

Constant Field Values

INSTANCE_GROUP_ATTRIBUTE

public static final String INSTANCE_GROUP_ATTRIBUTE

See Also:

Constant Field Values

CLUSTER_EXECUTOR_SERVICE_NAME

public static final String CLUSTER_EXECUTOR_SERVICE_NAME

See Also:

Constant Field Values

SCHEDULED_CLUSTER_EXECUTOR_SERVICE_NAME

public static final String SCHEDULED_CLUSTER_EXECUTOR_SERVICE_NAME

See Also:

Constant Field Values

Constructor Detail

HazelcastCore

public HazelcastCore()

Method Detail

getCore

public static HazelcastCore getCore()

Returns the version of the object that has been instantiated.

Returns:

null if an instance of HazelcastCore has not been created

postConstruct

@PostConstruct
public void postConstruct()

getMemberName

public String getMemberName()

Returns the Hazelcast name of the instance

Note this is not the same as the name of the instance config or node

Returns:

Payara by default

Since:

4.1.1.171

getMemberGroup

public String getMemberGroup()

Gets the name of the member group that this instance belongs to

Returns:

MicroShoal by default

Since:

4.1.1.171

getUUID

public UUID getUUID()

Returns the UUID of the instance. If Hazelcast is not enabled then a new random one will be returned.

Returns:

a 128-bit immutable universally unique identifier

Since:

4.1.1.171

isLite

public boolean isLite()

Returns true if this instance is a Hazelcast Lite instance

Returns:

Since:

4.1.1.171

getInstance

public com.hazelcast.core.HazelcastInstance getInstance()

Gets the actual Hazelcast instance. Hazelcast will be booted by this method if it hasn't already started.

Returns:

getCachingProvider

public javax.cache.spi.CachingProvider getCachingProvider()

Gets the JCache provider used by Hazelcast

Returns:

See Also:

HazelcastCachingProvider

isEnabled

public boolean isEnabled()

Returns:

Whether Hazelcast is currently enabled

event

public void event(EventListener.Event event)

Description copied from interface: EventListener

Process a Glassfish/Payara event

Specified by:

event in interface EventListener

setEnabled

public void setEnabled(Boolean enabled)

Sets whether Hazelcast should be enabled.

Parameters:

enabled - If true will start Hazelcast or restart if currently running; if false will shut down Hazelcast.

getAttribute

public String getAttribute(UUID memberUUID,
                           String key)

setAttribute

public void setAttribute(UUID memberUUID,
                         String key,
                         String value)

getAttributes

public Map<String,String> getAttributes(UUID memberUUID)

getPort

public int getPort()

Gets the port that Hazelcast in running on

Returns:

The default is {@link 54327}

changed

public UnprocessedChangeEvents changed(PropertyChangeEvent[] pces)

Description copied from interface: ConfigListener

Notification that @Configured objects that were injected have changed

Specified by:

changed in interface ConfigListener

Parameters:

pces - list of changes

Returns:

the list of unprocessed events (requiring a restart) or null if all reconfiguration was processed successfully

isDatagridEncryptionEnabled

public boolean isDatagridEncryptionEnabled()