net.spy.memcached.KetamaConnectionFactory Maven / Gradle / Ivy
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package net.spy.memcached;
import java.util.List;
/**
* 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 RJ's blog post
*/
public class KetamaConnectionFactory extends DefaultConnectionFactory {
/**
* Create a KetamaConnectionFactory with the given maximum operation
* queue length, and the given read buffer size.
*
* @param opQueueMaxBlockTime the maximum time to block waiting for op
* queue operations to complete, in milliseconds
*/
public KetamaConnectionFactory(int qLen, int bufSize,
long opQueueMaxBlockTime) {
super(qLen, bufSize, HashAlgorithm.KETAMA_HASH);
}
/**
* Create a KetamaConnectionFactory with the default parameters.
*/
public KetamaConnectionFactory() {
this(DEFAULT_OP_QUEUE_LEN, DEFAULT_READ_BUFFER_SIZE,
DEFAULT_OP_QUEUE_MAX_BLOCK_TIME);
}
@Override
public NodeLocator createLocator(List nodes) {
return new KetamaNodeLocator(nodes, getHashAlg());
}
}