org.hibernate
Interface Cache

public interface Cache

Provides an API for querying/managing the second level cache regions.

CAUTION: None of these methods respect any isolation or transactional semantics associated with the underlying caches. Specifically, evictions perform an immediate "hard" removal outside any transactions and/or locking scheme(s).

Author:

Steve Ebersole

Method Summary

boolean	containsCollection(String role, Serializable ownerIdentifier) Determine whether the cache contains data for the given collection.
boolean	containsEntity(Class entityClass, Serializable identifier) Determine whether the cache contains data for the given entity "instance".
boolean	containsEntity(String entityName, Serializable identifier) Determine whether the cache contains data for the given entity "instance".
boolean	containsQuery(String regionName) Determine whether the cache contains data for the given query.
void	evictCollection(String role, Serializable ownerIdentifier) Evicts the cache data for the given identified collection instance.
void	evictCollectionRegion(String role) Evicts all entity data from the given region (i.e.
void	evictCollectionRegions() Evict data from all collection regions.
void	evictDefaultQueryRegion() Evicts all cached query results from the default region.
void	evictEntity(Class entityClass, Serializable identifier) Evicts the entity data for a particular entity "instance".
void	evictEntity(String entityName, Serializable identifier) Evicts the entity data for a particular entity "instance".
void	evictEntityRegion(Class entityClass) Evicts all entity data from the given region (i.e.
void	evictEntityRegion(String entityName) Evicts all entity data from the given region (i.e.
void	evictEntityRegions() Evict data from all entity regions.
void	evictQueryRegion(String regionName) Evicts all cached query results under the given name.
void	evictQueryRegions() Evict data from all query regions.

Method Detail

containsEntity

boolean containsEntity(Class entityClass,
                       Serializable identifier)

Determine whether the cache contains data for the given entity "instance".

The semantic here is whether the cache contains data visible for the current call context.

Parameters:

entityClass - The entity class.

identifier - The entity identifier

Returns:

True if the underlying cache contains corresponding data; false otherwise.

containsEntity

boolean containsEntity(String entityName,
                       Serializable identifier)

Determine whether the cache contains data for the given entity "instance".

The semantic here is whether the cache contains data visible for the current call context.

Parameters:

entityName - The entity name.

identifier - The entity identifier

Returns:

True if the underlying cache contains corresponding data; false otherwise.

evictEntity

void evictEntity(Class entityClass,
                 Serializable identifier)

Evicts the entity data for a particular entity "instance".

Parameters:

entityClass - The entity class.

identifier - The entity identifier

evictEntity

void evictEntity(String entityName,
                 Serializable identifier)

Evicts the entity data for a particular entity "instance".

Parameters:

entityName - The entity name.

identifier - The entity identifier

evictEntityRegion

void evictEntityRegion(Class entityClass)

Evicts all entity data from the given region (i.e. for all entities of type).

Parameters:

entityClass - The entity class.

evictEntityRegion

void evictEntityRegion(String entityName)

Evicts all entity data from the given region (i.e. for all entities of type).

Parameters:

entityName - The entity name.

evictEntityRegions

void evictEntityRegions()

Evict data from all entity regions.

containsCollection

boolean containsCollection(String role,
                           Serializable ownerIdentifier)

Determine whether the cache contains data for the given collection.

The semantic here is whether the cache contains data visible for the current call context.

Parameters:

role - The name of the collection role (in form [owner-entity-name].[collection-property-name]) whose regions should be evicted.

ownerIdentifier - The identifier of the owning entity

Returns:

True if the underlying cache contains corresponding data; false otherwise.

evictCollection

void evictCollection(String role,
                     Serializable ownerIdentifier)

Evicts the cache data for the given identified collection instance.

Parameters:

role - The "collection role" (in form [owner-entity-name].[collection-property-name]).

ownerIdentifier - The identifier of the owning entity

evictCollectionRegion

void evictCollectionRegion(String role)

Evicts all entity data from the given region (i.e. evicts cached data for all of the specified c9ollection role).

Parameters:

role - The "collection role" (in form [owner-entity-name].[collection-property-name]).

evictCollectionRegions

void evictCollectionRegions()

Evict data from all collection regions.

containsQuery

boolean containsQuery(String regionName)

Determine whether the cache contains data for the given query.

The semantic here is whether the cache contains any data for the given region name since query result caches are not transactionally isolated.

Parameters:

regionName - The cache name given to the query.

Returns:

True if the underlying cache contains corresponding data; false otherwise.

evictDefaultQueryRegion

void evictDefaultQueryRegion()

Evicts all cached query results from the default region.

evictQueryRegion

void evictQueryRegion(String regionName)

Evicts all cached query results under the given name.

Parameters:

regionName - The cache name associated to the queries being cached.

evictQueryRegions

void evictQueryRegions()

Evict data from all query regions.