org.mule.modules.cassandradb.utils

Enum LoadBalancingPolicyEnum

java.lang.Object

java.lang.Enum<LoadBalancingPolicyEnum>

org.mule.modules.cassandradb.utils.LoadBalancingPolicyEnum

All Implemented Interfaces:

Serializable, Comparable<LoadBalancingPolicyEnum>

public enum LoadBalancingPolicyEnum
extends Enum<LoadBalancingPolicyEnum>

Enum Constant Summary

Enum Constants

Enum Constant and Description
DcAwareRoundRobinPolicy A data-center aware Round-robin load balancing policy.
RoundRobinPolicy Creates a load balancing policy that picks host to query in a round robin fashion (on all the hosts of the Cassandra cluster).

Method Summary

Modifier and Type	Method and Description
abstract com.datastax.driver.core.policies.LoadBalancingPolicy	getLoadBalancingPolicy()
static LoadBalancingPolicyEnum	valueOf(String name) Returns the enum constant of this type with the specified name.
static LoadBalancingPolicyEnum[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

RoundRobinPolicy

public static final LoadBalancingPolicyEnum RoundRobinPolicy

Creates a load balancing policy that picks host to query in a round robin fashion (on all the hosts of the Cassandra cluster).

DcAwareRoundRobinPolicy

public static final LoadBalancingPolicyEnum DcAwareRoundRobinPolicy

A data-center aware Round-robin load balancing policy.

This policy provides round-robin queries over the node of the local data center. It also includes in the query plans returned a configurable number of hosts in the remote data centers, but those are always tried after the local nodes. In other words, this policy guarantees that no host in a remote data center will be queried unless no host in the local data center can be reached.

If used with a single data center, this policy is equivalent to the RoundRobinPolicy, but its DC awareness incurs a slight overhead so the latter should be preferred to this policy in that case.

Method Detail

values

public static LoadBalancingPolicyEnum[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (LoadBalancingPolicyEnum c : LoadBalancingPolicyEnum.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static LoadBalancingPolicyEnum valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getLoadBalancingPolicy

public abstract com.datastax.driver.core.policies.LoadBalancingPolicy getLoadBalancingPolicy()