org.apache.geode.cache

Interface CacheCallback

All Superinterfaces:

Declarable

All Known Subinterfaces:

AccessControl, AsyncEventListener, Authenticator, AuthInitialize, CacheListener<K,V>, CacheLoader<K,V>, CacheWriter<K,V>, CqListener, CqStatusListener, CustomExpiry<K,V>, FixedPartitionResolver<K,V>, GatewayEventFilter, GatewayEventSubstitutionFilter<K,V>, GatewayTransportFilter, InterestRegistrationListener, PartitionResolver<K,V>, RegionMembershipListener<K,V>, RegionRoleListener<K,V>, ServerLoadProbe, TransactionListener, TransactionWriter

All Known Implementing Classes:

org.apache.geode.connectors.jdbc.internal.AbstractJdbcCallback, CacheListenerAdapter, CacheWriterAdapter, CqListenerAdapter, DebugCacheListener, GatewayDeltaEventApplicationCacheListener, GatewayDeltaForwarderCacheListener, JdbcAsyncWriter, JdbcLoader, JdbcWriter, LocalSessionCacheLoader, LocalSessionCacheWriter, RegionConfigurationCacheListener, RegionMembershipListenerAdapter, RegionRoleListenerAdapter, ServerLoadProbeAdapter, SessionCustomExpiry, SessionExpirationCacheListener, StringPrefixPartitionResolver, TransactionListenerAdapter

public interface CacheCallback
extends Declarable

User-defined objects that can be plugged into caching to receive callback notifications.

Since:

GemFire 3.0

Method Summary

Modifier and Type	Method and Description
default void	close() Called when the region containing this callback is closed or destroyed, when the cache is closed, or when a callback is removed from a region using an AttributesMutator.

Methods inherited from interface org.apache.geode.cache.Declarable

init, initialize

Method Detail

close

default void close()

Called when the region containing this callback is closed or destroyed, when the cache is closed, or when a callback is removed from a region using an AttributesMutator.

Implementations should cleanup any external resources such as database connections. Any runtime exceptions this method throws will be logged.

It is possible for this method to be called multiple times on a single callback instance, so implementations must be tolerant of this.

See Also:

RegionService.close(), Region.close(), Region.localDestroyRegion(), Region.destroyRegion(), AttributesMutator