Creates a new datacenter aware round robin policy that auto-discover the local data-center.

If this constructor is used, the data-center used as local will the data-center of the first Cassandra node the driver connects to. This will always be ok if all the contact points use at Cluster creation are in the local data-center. If it's not the case, you should provide the local data-center name yourself by using one of the other constructor of this class.

Creates a new datacenter aware round robin policy given the name of the local datacenter.

The name of the local datacenter provided must be the local datacenter name as known by Cassandra.

The policy created will ignore all remote hosts. In other words, this is equivalent to new DCAwareRoundRobinPolicy(localDc, 0).

Creates a new DCAwareRoundRobin policy given the name of the local datacenter and that uses the provided number of host per remote datacenter as failover for the local hosts.

The name of the local datacenter provided must be the local datacenter name as known by Cassandra.