org.mule.modules.cassandradb.utils

Enum ReplicationStrategy

java.lang.Object

java.lang.Enum<ReplicationStrategy>

org.mule.modules.cassandradb.utils.ReplicationStrategy

All Implemented Interfaces:

Serializable, Comparable<ReplicationStrategy>

public enum ReplicationStrategy
extends Enum<ReplicationStrategy>

Cassandra supported replica placement strategies

Enum Constant Summary

Enum Constants

Enum Constant and Description
NETWORK_TOPOLOGY With NetworkTopologyStrategy, for each datacenter, you can specify how many replicas you want on a per-keyspace basis.
SIMPLE SimpleStrategy merely places the first replica at the node whose token is closest to the key (as determined by the Partitioner), and additional replicas on subsequent nodes along the ring in increasing Token order.

Method Summary

Modifier and Type	Method and Description
static Map<String,Object>	buildDefaultReplicationStrategy()
static Map<String,Object>	buildReplicationStrategy(CreateKeyspaceInput input)
String	getStrategyClass()
static ReplicationStrategy	lookup(String inputToMatch)
static ReplicationStrategy	valueOf(String name) Returns the enum constant of this type with the specified name.
static ReplicationStrategy[]	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

SIMPLE

public static final ReplicationStrategy SIMPLE

SimpleStrategy merely places the first replica at the node whose token is closest to the key (as determined by the Partitioner), and additional replicas on subsequent nodes along the ring in increasing Token order.

Supports a single strategy option 'replication_factor' that specifies the replication factor for the cluster.

NETWORK_TOPOLOGY

public static final ReplicationStrategy NETWORK_TOPOLOGY

With NetworkTopologyStrategy, for each datacenter, you can specify how many replicas you want on a per-keyspace basis. Replicas are placed on different racks within each DC, if possible.

Supports strategy options which specify the replication factor for each datacenter. The replication factor for the entire cluster is the sum of all per datacenter values. Note that the datacenter names must match those used in conf/cassandra-topology.properties.

Method Detail

values

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

Returns:

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

valueOf

public static ReplicationStrategy 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

getStrategyClass

public String getStrategyClass()

lookup

public static ReplicationStrategy lookup(String inputToMatch)

buildReplicationStrategy

public static Map<String,Object> buildReplicationStrategy(CreateKeyspaceInput input)

buildDefaultReplicationStrategy

public static Map<String,Object> buildDefaultReplicationStrategy()