Package org.apache.druid.client.cache

Class MemcachedCache

java.lang.Object

org.apache.druid.client.cache.MemcachedCache

All Implemented Interfaces:

Closeable, AutoCloseable, Cache

public class MemcachedCache
extends Object
implements Cache

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.druid.client.cache.Cache

Cache.NamedKey

Field Summary

Fields

Modifier and Type	Field	Description
static int	MAX_PREFIX_LENGTH

Method Summary

Modifier and Type	Method	Description
void	close()
void	close(String namespace)
static MemcachedCache	create(MemcachedCacheConfig config)
static net.spy.memcached.ConnectionFactory	createConnectionFactory(MemcachedCacheConfig config, LZ4Transcoder transcoder, net.spy.memcached.ops.OperationQueueFactory opQueueFactory, net.spy.memcached.metrics.MetricCollector metricCollector)
void	doMonitor(org.apache.druid.java.util.emitter.service.ServiceEmitter emitter)	Custom metrics not covered by CacheStats may be emitted by this method.
byte[]	get(Cache.NamedKey key)
Map<Cache.NamedKey,byte[]>	getBulk(Iterable<Cache.NamedKey> keys)	Resulting map should not contain any null values (i.e.
CacheStats	getStats()
boolean	isLocal()
void	put(Cache.NamedKey key, byte[] value)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_PREFIX_LENGTH

public static final int MAX_PREFIX_LENGTH

See Also:

Constant Field Values

Method Detail

create

public static MemcachedCache create(MemcachedCacheConfig config)

createConnectionFactory

public static net.spy.memcached.ConnectionFactory createConnectionFactory(MemcachedCacheConfig config,
                                                                          LZ4Transcoder transcoder,
                                                                          net.spy.memcached.ops.OperationQueueFactory opQueueFactory,
                                                                          net.spy.memcached.metrics.MetricCollector metricCollector)
                                                                   throws KeyManagementException,
                                                                          KeyStoreException,
                                                                          NoSuchAlgorithmException

Throws:

KeyManagementException

KeyStoreException

NoSuchAlgorithmException

getStats

public CacheStats getStats()

Specified by:

getStats in interface Cache

get

public byte[] get(Cache.NamedKey key)

Specified by:

get in interface Cache

put

public void put(Cache.NamedKey key,
                byte[] value)

Specified by:

put in interface Cache

getBulk

public Map<Cache.NamedKey,byte[]> getBulk(Iterable<Cache.NamedKey> keys)

Description copied from interface: Cache

Resulting map should not contain any null values (i.e. cache misses should not be included)

Specified by:

getBulk in interface Cache

Returns:

close

public void close(String namespace)

Specified by:

close in interface Cache

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

isLocal

public boolean isLocal()

Specified by:

isLocal in interface Cache

doMonitor

public void doMonitor(org.apache.druid.java.util.emitter.service.ServiceEmitter emitter)

Description copied from interface: Cache

Custom metrics not covered by CacheStats may be emitted by this method.

Specified by:

doMonitor in interface Cache

Parameters:

emitter - The service emitter to emit on.