ShardCoordinator.ActorSystemDependentAllocationStrategy

All Superinterfaces:

NoSerializationVerificationNeeded, ShardCoordinator.ShardAllocationStrategy

All Known Implementing Classes:

ConsistentHashingShardAllocationStrategy

Enclosing class:

ShardCoordinator
```
public static interface ShardCoordinator.ActorSystemDependentAllocationStrategy
extends ShardCoordinator.ShardAllocationStrategy
```
Shard allocation strategy where start is called by the shard coordinator before any calls to rebalance or allocate shard. This is much like the ShardCoordinator.StartableAllocationStrategy but will get access to the actor system when started, for example to interact with extensions.
INTERNAL API

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void start(ActorSystem system)
  Called before any calls to allocate/rebalance.
  - Methods inherited from interface akka.cluster.sharding.ShardCoordinator.ShardAllocationStrategy
    allocateShard, rebalance

- Method Detail
  - start
```
void start(ActorSystem system)
```
    Called before any calls to allocate/rebalance. Do not block. If asynchronous actions are required they can be started here and delay the Futures returned by allocate/rebalance.