io.druid.client

Class CacheUtil

java.lang.Object

io.druid.client.CacheUtil

public class CacheUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
CacheUtil()

Method Summary

Modifier and Type	Method and Description
static Cache.NamedKey	computeSegmentCacheKey(String segmentIdentifier, SegmentDescriptor descriptor, byte[] queryCacheKey)
static void	populate(Cache cache, com.fasterxml.jackson.databind.ObjectMapper mapper, Cache.NamedKey key, Iterable<Object> results)
static <T> boolean	populateCacheOnBrokers(Query<T> query, CacheStrategy<T,Object,Query<T>> strategy, CacheConfig cacheConfig)
static <T> boolean	populateCacheOnDataNodes(Query<T> query, CacheStrategy<T,Object,Query<T>> strategy, CacheConfig cacheConfig)
static <T> boolean	useCacheOnBrokers(Query<T> query, CacheStrategy<T,Object,Query<T>> strategy, CacheConfig cacheConfig)
static <T> boolean	useCacheOnDataNodes(Query<T> query, CacheStrategy<T,Object,Query<T>> strategy, CacheConfig cacheConfig)

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheUtil

public CacheUtil()

Method Detail

computeSegmentCacheKey

public static Cache.NamedKey computeSegmentCacheKey(String segmentIdentifier,
                                                    SegmentDescriptor descriptor,
                                                    byte[] queryCacheKey)

populate

public static void populate(Cache cache,
                            com.fasterxml.jackson.databind.ObjectMapper mapper,
                            Cache.NamedKey key,
                            Iterable<Object> results)

useCacheOnBrokers

public static <T> boolean useCacheOnBrokers(Query<T> query,
                                            CacheStrategy<T,Object,Query<T>> strategy,
                                            CacheConfig cacheConfig)

populateCacheOnBrokers

public static <T> boolean populateCacheOnBrokers(Query<T> query,
                                                 CacheStrategy<T,Object,Query<T>> strategy,
                                                 CacheConfig cacheConfig)

useCacheOnDataNodes

public static <T> boolean useCacheOnDataNodes(Query<T> query,
                                              CacheStrategy<T,Object,Query<T>> strategy,
                                              CacheConfig cacheConfig)

populateCacheOnDataNodes

public static <T> boolean populateCacheOnDataNodes(Query<T> query,
                                                   CacheStrategy<T,Object,Query<T>> strategy,
                                                   CacheConfig cacheConfig)