net.spy.memcached
Class KetamaConnectionFactory

java.lang.Object
  net.spy.memcached.compat.SpyObject
      net.spy.memcached.DefaultConnectionFactory
          net.spy.memcached.KetamaConnectionFactory

All Implemented Interfaces:

ConnectionFactory

public class KetamaConnectionFactory
extends DefaultConnectionFactory

ConnectionFactory instance that sets up a ketama compatible connection.

This implementation piggy-backs on the functionality of the DefaultConnectionFactory in terms of connections and queue handling. Where it differs is that it uses both the KetamaNodeLocator and the HashAlgorithm.KETAMA_HASH to provide consistent node hashing.

See Also:

RJ's blog post

Field Summary

Fields inherited from class net.spy.memcached.DefaultConnectionFactory

DEFAULT_FAILURE_MODE, DEFAULT_HASH, DEFAULT_MAX_RECONNECT_DELAY, DEFAULT_MAX_TIMEOUTEXCEPTION_THRESHOLD, DEFAULT_OP_QUEUE_LEN, DEFAULT_OP_QUEUE_MAX_BLOCK_TIME, DEFAULT_OPERATION_TIMEOUT, DEFAULT_READ_BUFFER_SIZE

Constructor Summary

KetamaConnectionFactory()
Create a KetamaConnectionFactory with the default parameters.

KetamaConnectionFactory(int qLen, int bufSize, long opQueueMaxBlockTime)
Create a KetamaConnectionFactory with the given maximum operation queue length, and the given read buffer size.

Method Summary

NodeLocator

createLocator(List<MemcachedNode> nodes) Create a NodeLocator instance for the given list of nodes.

Methods inherited from class net.spy.memcached.DefaultConnectionFactory

createConnection, createMemcachedNode, createOperationQueue, createReadOperationQueue, createWriteOperationQueue, getAuthDescriptor, getDefaultTranscoder, getFailureMode, getHashAlg, getInitialObservers, getMaxReconnectDelay, getName, getOperationFactory, getOperationTimeout, getOpQueueLen, getOpQueueMaxBlockTime, getReadBufSize, getTimeoutExceptionThreshold, isDaemon, shouldOptimize, toString, useNagleAlgorithm

Methods inherited from class net.spy.memcached.compat.SpyObject

getLogger

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

KetamaConnectionFactory

public KetamaConnectionFactory(int qLen,
                               int bufSize,
                               long opQueueMaxBlockTime)

Create a KetamaConnectionFactory with the given maximum operation queue length, and the given read buffer size.

Parameters:

opQueueMaxBlockTime - the maximum time to block waiting for op queue operations to complete, in milliseconds

KetamaConnectionFactory

public KetamaConnectionFactory()

Create a KetamaConnectionFactory with the default parameters.

Method Detail

createLocator

public NodeLocator createLocator(List<MemcachedNode> nodes)

Description copied from interface: ConnectionFactory

Create a NodeLocator instance for the given list of nodes.

Specified by:

createLocator in interface ConnectionFactory

Overrides:

createLocator in class DefaultConnectionFactory