com.hazelcast.spi.impl.operationservice

Interface TargetAware

All Known Implementing Classes:

FinalizeJoinOp, MapReplicationOperation, MapReplicationStateHolder, MigrationOperation, OnJoinOp, PartitionReplicaSyncResponse, PostJoinMapOperation, ReplicaFragmentMigrationState

public interface TargetAware

An Operation that has to be aware of the remote target member address before being serialized and sent over the network can implement TargetAware interface so the target Address will be injected to it.

The target Address injection only happens when the Operation is invoked using the invocation system. When a TargetAware operation is explicitly sent to a remote target or executed locally, setTarget(Address) should be explicitly called before the operation is sent or executed.

Threading considerations: `setTarget` is invoked in the same thread that later serializes the operation to bytes. However, do consider that retries may be executed in a thread other than the original invocation.

Method Summary

Modifier and Type	Method and Description
void	setTarget(Address address) Provides the designated target member address to which the operation will be sent.

Method Detail

setTarget

void setTarget(Address address)

Provides the designated target member address to which the operation will be sent.

• This method is invoked on the implementing object before the operation is serialized and sent over the network
• When an operation is retried, the target may be re-evaluated (eg a partition operation may target a different member after a topology change). setTarget will be invoked on each retry with the current target member's Address as argument
• When an operation is executed on the local member, the local member's address is provided as target address

Parameters:

address - target member's address