VMware GemFire Java API Reference

AsyncEvent (Tanzu GemFire 10.1.4)

All Superinterfaces:

GatewayQueueEvent<K,V>
```
public interface AsyncEvent<K,V>
extends GatewayQueueEvent<K,V>
```
Represents Cache events delivered to AsyncEventListener.

Since:

GemFire 7.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`EventSequenceID`	`getEventSequenceID()`	Returns the wrapper over the DistributedMembershipID, ThreadID, SequenceID which are used to uniquely identify any region operation like create, update etc.
`boolean`	`getPossibleDuplicate()`	Returns whether possibleDuplicate is set for this event.

Methods inherited from interface org.apache.geode.cache.wan.GatewayQueueEvent
getCallbackArgument, getDeserializedValue, getKey, getOperation, getRegion, getSerializedValue

- Method Detail
  - getPossibleDuplicate
```
boolean getPossibleDuplicate()
```
    Returns whether possibleDuplicate is set for this event.
    
    Returns:
    
    whether possibleDuplicate is set for this event
  - getEventSequenceID
```
EventSequenceID getEventSequenceID()
```
    Returns the wrapper over the DistributedMembershipID, ThreadID, SequenceID which are used to uniquely identify any region operation like create, update etc. This helps in sequencing the events belonging to a unique producer. e.g. The EventID can be used to track events received by AsyncEventListener to avoid processing duplicates.
    
    Returns:
    
    the wrapper over the DistributedMembershipID, ThreadID, SequenceID which are used to uniquely identify any region operation