org.ehcache.core.spi.cache.tiering
Interface AuthoritativeTier<K,V>

All Superinterfaces:

ConfigurationChangeSupport, Store<K,V>

All Known Implementing Classes:

AbstractOffHeapStore, OffHeapDiskStore, OffHeapStore

public interface AuthoritativeTier<K,V>
extends Store<K,V>

Authoritative tier, according to Montreal design.

Nested Class Summary

static interface

AuthoritativeTier.Provider

Nested classes/interfaces inherited from interface org.ehcache.core.spi.cache.Store

Store.Configuration<K,V>, Store.Iterator<T>, Store.ValueHolder<V>

Method Summary

Store.ValueHolder<V>	computeIfAbsentAndFault(K key, Function<? super K,? extends V> mappingFunction) Marks the mapping as not evictable and performs computeIfAbsent() atomically.
boolean	flush(K key, Store.ValueHolder<V> valueHolder) This marks the entry as evictable again.
Store.ValueHolder<V>	getAndFault(K key) Marks the mapping as not evictable and returns it atomically.

Methods inherited from interface org.ehcache.core.spi.cache.Store

bulkCompute, bulkCompute, bulkComputeIfAbsent, clear, compute, compute, computeIfAbsent, computeIfPresent, computeIfPresent, containsKey, get, getStoreEventSource, iterator, put, putIfAbsent, remove, remove, replace, replace

Methods inherited from interface org.ehcache.core.spi.cache.ConfigurationChangeSupport

getConfigurationChangeListeners

Method Detail

getAndFault

Store.ValueHolder<V> getAndFault(K key)
                                 throws CacheAccessException

Marks the mapping as not evictable and returns it atomically.

Returns:

the value holder.

Throws:

CacheAccessException - if the mapping can't be retrieved or updated.

computeIfAbsentAndFault

Store.ValueHolder<V> computeIfAbsentAndFault(K key,
                                             Function<? super K,? extends V> mappingFunction)
                                             throws CacheAccessException

Marks the mapping as not evictable and performs computeIfAbsent() atomically.

Returns:

the value holder.

Throws:

CacheAccessException - if the mapping can't be retrieved or updated.

flush

boolean flush(K key,
              Store.ValueHolder<V> valueHolder)

This marks the entry as evictable again. The ValueHolder must be an instance returned by the CachingTier.

Returns:

true if a mapping exists for that key, the mapping was faulted, and the value of the ValueHolder is equal to the value of the mapping in the AuthoritativeTier.

Throws:

java.lang.IllegalArgumentException - if the ValueHolder is not an instance from the CachingTier