Replicated Map offers a distributed java.util.Map::clear
implementation, but due to the asynchronous nature and the
weakly consistency of this implementation, there is no point in time where you can say the map is empty. Every node
applies that to its local dataset in "a near point in time".
If you need a definite point in time to empty the map, you may want to consider using a lock around the clear
operation.
You can simulate the clear
method by locking your user codebase and executing a remote operation that
uses DistributedObject::destroy
to destroy the node's own proxy and storage of the Replicated Map. A new proxy instance
and storage will be created on the next retrieval of the Replicated Map using HazelcastInstance::getReplicatedMap
.
You will have to reallocate the Replicated Map in your code. Afterwards, just release the lock when finished.