Package org.apache.druid.client.cache

Class HybridCache

java.lang.Object

org.apache.druid.client.cache.HybridCache

All Implemented Interfaces:

Closeable, AutoCloseable, Cache

public class HybridCache
extends Object
implements Cache

Nested Class Summary

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

Cache.NamedKey

Constructor Summary

Constructors

Constructor	Description
HybridCache(HybridCacheConfig config, Cache level1, Cache level2)

Method Summary

Modifier and Type	Method	Description
void	close()
void	close(String namespace)
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

Constructor Detail

HybridCache

public HybridCache(HybridCacheConfig config,
                   Cache level1,
                   Cache level2)

Method Detail

get

@Nullable
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()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

getStats

public CacheStats getStats()

Specified by:

getStats in interface Cache

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.