Package org.springframework.geode.distributed.event

Class MembershipEvent<T extends MembershipEvent<T>>

java.lang.Object

java.util.EventObject

org.springframework.geode.distributed.event.MembershipEvent<T>

Type Parameters:

T - specific type of MembershipEvent.

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

MemberDepartedEvent, MemberJoinedEvent, MemberSuspectEvent, QuorumLostEvent

public abstract class MembershipEvent<T extends MembershipEvent<T>>
extends EventObject

EventObject implementation indicating a membership event in the DistributedSystem.

Since:

1.3.0

See Also:

• EventObject
• Cache
• DistributedMember
• DistributedSystem
• DistributionManager
• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	MembershipEvent.Type	An enumeration of different type of MembershipEvents.

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
MembershipEvent(org.apache.geode.distributed.internal.DistributionManager distributionManager)	Constructs a new instance of MembershipEvent initialized with the given DistributionManager.

Method Summary

Modifier and Type	Method	Description
protected static <T> T	assertNotNull(T target, String message, Object... arguments)	Asserts that the given target is not null.
Optional<org.apache.geode.cache.Cache>	getCache()	Returns an Optional reference to the peer Cache.
Optional<org.apache.geode.distributed.DistributedMember>	getDistributedMember()	Returns an Optional reference to the DistributedMember that is the subject of this MembershipEvent.
Optional<org.apache.geode.distributed.DistributedSystem>	getDistributedSystem()	Returns an Optional reference to the DistributedSystem (cluster) to which the peer Cache is connected.
org.apache.geode.distributed.internal.DistributionManager	getDistributionManager()	Returns a reference to the configured DistributionManager which is use as the source of this event.
MembershipEvent.Type	getType()	Returns the MembershipEvent.Type of this MembershipEvent, such as MembershipEvent.Type.MEMBER_JOINED.
T	withMember(org.apache.geode.distributed.DistributedMember distributedMember)	Null-safe builder method used to configure the member that is the subject of this event.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Constructor Details

MembershipEvent

public MembershipEvent(org.apache.geode.distributed.internal.DistributionManager distributionManager)

Constructs a new instance of MembershipEvent initialized with the given DistributionManager.

Parameters:

distributionManager - DistributionManager used to acquire the Cache, which is used as the source of this event.

Throws:

IllegalArgumentException - if DistributionManager is null.

See Also:

• DistributionManager

Method Details

assertNotNull

protected static <T> T assertNotNull(T target,
 String message,
 Object... arguments)

Asserts that the given target is not null.

Type Parameters:

T - type of the target.

Parameters:

target - Object to evaluate.

message - String containing the message for the IllegalArgumentException.

arguments - array of arguments to populate the placeholders in the message.

Returns:

the target.

Throws:

IllegalArgumentException - if target is null.

getCache

public Optional<org.apache.geode.cache.Cache> getCache()

Returns an Optional reference to the peer Cache.

Returns:

an Optional reference to the peer Cache.

See Also:

• Cache
• getDistributionManager()
• Optional

getDistributedMember

public Optional<org.apache.geode.distributed.DistributedMember> getDistributedMember()

Returns an Optional reference to the DistributedMember that is the subject of this MembershipEvent.

Returns:

an Optional reference to the DistributedMember that is the subject of this event.

See Also:

• DistributedMember
• getDistributionManager()
• Optional

getDistributedSystem

public Optional<org.apache.geode.distributed.DistributedSystem> getDistributedSystem()

Returns an Optional reference to the DistributedSystem (cluster) to which the peer Cache is connected.

Returns:

an Optional reference to the DistributedSystem.

See Also:

• DistributedSystem
• getDistributionManager()
• Optional

getDistributionManager

public org.apache.geode.distributed.internal.DistributionManager getDistributionManager()

Returns a reference to the configured DistributionManager which is use as the source of this event.

Returns:

a reference to the DistributionManager.

See Also:

• DistributionManager

getType

public MembershipEvent.Type getType()

Returns the MembershipEvent.Type of this MembershipEvent, such as MembershipEvent.Type.MEMBER_JOINED.

Returns:

the MembershipEvent.Type.

withMember

public T withMember(org.apache.geode.distributed.DistributedMember distributedMember)

Null-safe builder method used to configure the member that is the subject of this event.

Parameters:

distributedMember - DistributedMember that is the subject of this event.

Returns:

this MembershipEvent.

See Also:

• DistributedMember
• getDistributedMember()