Retrieves the current number of routees in the pool.

Retrieve the resizer to use when dynamically allocating routees to the pool.

Dispatcher ID to use for running the "head" actor, which handles supervision, death watch and router management messages.

Specify that this router should stop itself when all routees have terminated (been removed).

Retrieve the strategy to use when supervising the pool.

Retrieve whether or not to use the pool dispatcher. The dispatcher is defined in the 'pool-dispatcher' configuration property in the deployment section of the router.