Hibernate ORM - hibernate-core 5.6.15.Final · org.hibernate.cache.spi.access.NaturalIdDataAccess

Contract for managing transactional and concurrent access to cached naturalId data. The expected call sequences related to various operations are:

INSERTS : insert -> afterInsert
UPDATES : lockItem -> remove -> update -> afterUpdate
DELETES : lockItem -> remove -> unlockItem
LOADS : putFromLoad

Note the special case of UPDATES above. Because the cache key itself has changed here we need to remove the old entry as well

There is another usage pattern that is used to invalidate entries afterQuery performing "bulk" HQL/SQL operations: lockRegion -> removeAll -> unlockRegion

IMPORTANT : NaturalIds are not versioned so null will always be passed to the version parameter to:

Method Summary

Modifier and Type	Method and Description
public boolean	Returns: Were the contents of the cache actually changed by this operation? afterInsert(SharedSessionContractImplementor Current session session, Object The item key key, Object The item value) Called afterQuery an item has been inserted (afterQuery the transaction completes), instead of calling release().
public boolean	Returns: Were the contents of the cache actually changed by this operation? afterUpdate(SharedSessionContractImplementor Current session session, Object The item key key, Object The item value, SoftLock The lock previously obtained from `lockItem` lock) Called afterQuery an item has been updated (afterQuery the transaction completes), instead of calling release().
public Object	Returns: a key which can be used to identify an element unequivocally on this same region generateCacheKey(Object[] the sequence of values which unequivocally identifies a cached element on this region naturalIdValues, EntityPersister the persister of the element being cached rootEntityDescriptor, SharedSessionContractImplementor session) To create instances of NaturalIdCacheKey for this region, Hibernate will invoke this method exclusively so that generated implementations can generate optimised keys.
public Object[]	Returns: the sequence of values which unequivocally identifies a cached element on this region getNaturalIdValues(Object key returned from `generateCacheKey` cacheKey) Performs reverse operation to `generateCacheKey`, returning the original naturalIdValues.
public boolean	Returns: Were the contents of the cache actually changed by this operation? insert(SharedSessionContractImplementor Current session session, Object The item key key, Object The item value) Called afterQuery an item has been inserted (beforeQuery the transaction completes), instead of calling evict().
public boolean	Returns: Were the contents of the cache actually changed by this operation? update(SharedSessionContractImplementor Current session session, Object The item key key, Object The item value) Called afterQuery an item has been updated (beforeQuery the transaction completes), instead of calling evict().

Inherited from org.hibernate.cache.spi.access.CachedDomainDataAccess:: contains evict evictAll get getAccessType getRegion lockItem lockRegion putFromLoad putFromLoad remove removeAll unlockItem unlockRegion

Method Detail

afterInsert	back to summary
public boolean afterInsert(SharedSessionContractImplementor session, Object key, Object value) Called afterQuery an item has been inserted (afterQuery the transaction completes), instead of calling release(). This method is used by "asynchronous" concurrency strategies. Parameters session:SharedSessionContractImplementor Current session key:Object The item key value:Object The item Returns:boolean Were the contents of the cache actually changed by this operation? Exceptions CacheException: Propagated from underlying cache provider

afterInsert

back to summary

public boolean afterInsert(SharedSessionContractImplementor session, Object key, Object value)

Called afterQuery an item has been inserted (afterQuery the transaction completes), instead of calling release(). This method is used by "asynchronous" concurrency strategies.

Parameters

session:SharedSessionContractImplementor: Current session
key:Object: The item key
value:Object: The item

Returns:boolean

Were the contents of the cache actually changed by this operation?

Exceptions

CacheException:: Propagated from underlying cache provider

afterUpdate back to summary

afterUpdate	back to summary
public boolean afterUpdate(SharedSessionContractImplementor session, Object key, Object value, SoftLock lock) Called afterQuery an item has been updated (afterQuery the transaction completes), instead of calling release(). This method is used by "asynchronous" concurrency strategies. Parameters session:SharedSessionContractImplementor Current session key:Object The item key value:Object The item lock:SoftLock The lock previously obtained from `lockItem` Returns:boolean Were the contents of the cache actually changed by this operation? Exceptions CacheException: Propagated from underlying cache provider

public boolean afterUpdate(SharedSessionContractImplementor session, Object key, Object value, SoftLock lock)

Called afterQuery an item has been updated (afterQuery the transaction completes), instead of calling release(). This method is used by "asynchronous" concurrency strategies.

Parameters

session:SharedSessionContractImplementor: Current session
key:Object: The item key
value:Object: The item
lock:SoftLock: The lock previously obtained from lockItem

Returns:boolean

Were the contents of the cache actually changed by this operation?

Exceptions

CacheException:: Propagated from underlying cache provider

generateCacheKey	back to summary
public Object generateCacheKey(Object[] naturalIdValues, EntityPersister rootEntityDescriptor, SharedSessionContractImplementor session) To create instances of NaturalIdCacheKey for this region, Hibernate will invoke this method exclusively so that generated implementations can generate optimised keys. Parameters naturalIdValues:Object[] the sequence of values which unequivocally identifies a cached element on this region rootEntityDescriptor:EntityPersister the persister of the element being cached Returns:Object a key which can be used to identify an element unequivocally on this same region

generateCacheKey

back to summary

public Object generateCacheKey(Object[] naturalIdValues, EntityPersister rootEntityDescriptor, SharedSessionContractImplementor session)

To create instances of NaturalIdCacheKey for this region, Hibernate will invoke this method exclusively so that generated implementations can generate optimised keys.

Parameters

naturalIdValues:Object[]: the sequence of values which unequivocally identifies a cached element on this region
rootEntityDescriptor:EntityPersister: the persister of the element being cached

Returns:Object

a key which can be used to identify an element unequivocally on this same region

getNaturalIdValues back to summary

getNaturalIdValues	back to summary
public Object[] getNaturalIdValues(Object cacheKey) Performs reverse operation to `generateCacheKey`, returning the original naturalIdValues. Parameters cacheKey:Object key returned from `generateCacheKey` Returns:Object[] the sequence of values which unequivocally identifies a cached element on this region

public Object[] getNaturalIdValues(Object cacheKey)

Performs reverse operation to generateCacheKey, returning the original naturalIdValues.

Parameters

cacheKey:Object: key returned from generateCacheKey

Returns:Object[]

the sequence of values which unequivocally identifies a cached element on this region

insert	back to summary
public boolean insert(SharedSessionContractImplementor session, Object key, Object value) Called afterQuery an item has been inserted (beforeQuery the transaction completes), instead of calling evict(). This method is used by "synchronous" concurrency strategies. Parameters session:SharedSessionContractImplementor Current session key:Object The item key value:Object The item Returns:boolean Were the contents of the cache actually changed by this operation? Exceptions CacheException: Propagated from underlying cache provider

insert

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public boolean insert(SharedSessionContractImplementor session, Object key, Object value)

Called afterQuery an item has been inserted (beforeQuery the transaction completes), instead of calling evict(). This method is used by "synchronous" concurrency strategies.

Parameters

session:SharedSessionContractImplementor: Current session
key:Object: The item key
value:Object: The item

Returns:boolean

Were the contents of the cache actually changed by this operation?

Exceptions

CacheException:: Propagated from underlying cache provider

update	back to summary
public boolean update(SharedSessionContractImplementor session, Object key, Object value) Called afterQuery an item has been updated (beforeQuery the transaction completes), instead of calling evict(). This method is used by "synchronous" concurrency strategies. Parameters session:SharedSessionContractImplementor Current session key:Object The item key value:Object The item Returns:boolean Were the contents of the cache actually changed by this operation? Exceptions CacheException: Propagated from underlying cache provider

update

back to summary

public boolean update(SharedSessionContractImplementor session, Object key, Object value)

Called afterQuery an item has been updated (beforeQuery the transaction completes), instead of calling evict(). This method is used by "synchronous" concurrency strategies.

Parameters

session:SharedSessionContractImplementor: Current session
key:Object: The item key
value:Object: The item

Returns:boolean

Were the contents of the cache actually changed by this operation?

Exceptions

CacheException:: Propagated from underlying cache provider

public Interface NaturalIdDataAccess

Method Summary

Method Detail