org.jclouds.rackspace.cloudloadbalancers.domain

Enum LoadBalancer.Algorithm

java.lang.Object

java.lang.Enum<LoadBalancer.Algorithm>

org.jclouds.rackspace.cloudloadbalancers.domain.LoadBalancer.Algorithm

All Implemented Interfaces:

Serializable, Comparable<LoadBalancer.Algorithm>

Enclosing class:

LoadBalancer

public static enum LoadBalancer.Algorithm
extends Enum<LoadBalancer.Algorithm>

All load balancers utilize an algorithm that defines how traffic should be directed between back-end nodes. The default algorithm for newly created load balancers is RANDOM, which can be overridden at creation time or changed after the load balancer has been initially provisioned. The algorithm name is to be constant within a major revision of the load balancing API, though new algorithms may be created with a unique algorithm name within a given major revision of the service API.

Enum Constant Summary

Enum Constants

Enum Constant and Description
LEAST_CONNECTIONS The node with the lowest number of connections will receive requests.
RANDOM Back-end servers are selected at random.
ROUND_ROBIN Connections are routed to each of the back-end servers in turn.
UNRECOGNIZED
WEIGHTED_LEAST_CONNECTIONS Each request will be assigned to a node based on the number of concurrent connections to the node and its weight.
WEIGHTED_ROUND_ROBIN A round robin algorithm, but with different proportions of traffic being directed to the back-end nodes.

Method Summary

Methods

Modifier and Type	Method and Description
static LoadBalancer.Algorithm	fromValue(String algorithm)
static LoadBalancer.Algorithm	valueOf(String name) Returns the enum constant of this type with the specified name.
static LoadBalancer.Algorithm[]	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

LEAST_CONNECTIONS

public static final LoadBalancer.Algorithm LEAST_CONNECTIONS

The node with the lowest number of connections will receive requests.

RANDOM

public static final LoadBalancer.Algorithm RANDOM

Back-end servers are selected at random.

ROUND_ROBIN

public static final LoadBalancer.Algorithm ROUND_ROBIN

Connections are routed to each of the back-end servers in turn.

WEIGHTED_LEAST_CONNECTIONS

public static final LoadBalancer.Algorithm WEIGHTED_LEAST_CONNECTIONS

Each request will be assigned to a node based on the number of concurrent connections to the node and its weight.

WEIGHTED_ROUND_ROBIN

public static final LoadBalancer.Algorithm WEIGHTED_ROUND_ROBIN

A round robin algorithm, but with different proportions of traffic being directed to the back-end nodes. Weights must be defined as part of the load balancer's node configuration.

UNRECOGNIZED

public static final LoadBalancer.Algorithm UNRECOGNIZED

Method Detail

values

public static LoadBalancer.Algorithm[] 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 (LoadBalancer.Algorithm c : LoadBalancer.Algorithm.values())
    System.out.println(c);

Returns:

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

valueOf

public static LoadBalancer.Algorithm 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

fromValue

public static LoadBalancer.Algorithm fromValue(String algorithm)