程序包 org.hibernate.cache.spi.support

类 EntityReadWriteAccess

java.lang.Object

org.hibernate.cache.spi.support.AbstractCachedDomainDataAccess

org.hibernate.cache.spi.support.AbstractReadWriteAccess

org.hibernate.cache.spi.support.EntityReadWriteAccess

所有已实现的接口:

CachedDomainDataAccess, EntityDataAccess, AbstractDomainDataRegion.Destructible

public class EntityReadWriteAccess
extends AbstractReadWriteAccess
implements EntityDataAccess

Standard support for EntityDataAccess using the AccessType.READ_WRITE access type.

作者:

Steve Ebersole

嵌套类概要

从类继承的嵌套类/接口 org.hibernate.cache.spi.support.AbstractReadWriteAccess

AbstractReadWriteAccess.Item, AbstractReadWriteAccess.Lockable, AbstractReadWriteAccess.SoftLockImpl

构造器概要

构造器

构造器	说明
EntityReadWriteAccess(DomainDataRegion domainDataRegion, CacheKeysFactory keysFactory, DomainDataStorageAccess storageAccess, EntityDataCachingConfig entityAccessConfig)

方法概要

修饰符和类型	方法	说明
boolean	afterInsert(SharedSessionContractImplementor session, Object key, Object value, Object version)	Called afterQuery an item has been inserted (afterQuery the transaction completes), instead of calling release().
boolean	afterUpdate(SharedSessionContractImplementor session, Object key, Object value, Object currentVersion, Object previousVersion, SoftLock lock)	Called afterQuery an item has been updated (afterQuery the transaction completes), instead of calling release().
Object	generateCacheKey(Object id, EntityPersister rootEntityDescriptor, SessionFactoryImplementor factory, String tenantIdentifier)	To create instances of keys for this region, Hibernate will invoke this method exclusively so that generated implementations can generate optimised keys.
protected AccessedDataClassification	getAccessedDataClassification()
AccessType	getAccessType()	The type of access implemented
Object	getCacheKeyId(Object cacheKey)	Performs reverse operation to EntityDataAccess.generateCacheKey(java.lang.Object, org.hibernate.persister.entity.EntityPersister, org.hibernate.engine.spi.SessionFactoryImplementor, java.lang.String)
protected Comparator	getVersionComparator()
boolean	insert(SharedSessionContractImplementor session, Object key, Object value, Object version)	Called afterQuery an item has been inserted (beforeQuery the transaction completes), instead of calling evict().
SoftLock	lockRegion()	Lock the entire region
boolean	update(SharedSessionContractImplementor session, Object key, Object value, Object currentVersion, Object previousVersion)	Called afterQuery an item has been updated (beforeQuery the transaction completes), instead of calling evict().

从类继承的方法 org.hibernate.cache.spi.support.AbstractReadWriteAccess

decrementLock, get, handleLockExpiry, lockItem, nextLockId, putFromLoad, putFromLoad, readLock, remove, removeAll, unlockItem, uuid, writeLock

从类继承的方法 org.hibernate.cache.spi.support.AbstractCachedDomainDataAccess

clearCache, contains, destroy, evict, evictAll, getRegion, getStorageAccess, unlockRegion

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.hibernate.cache.spi.access.CachedDomainDataAccess

contains, evict, evictAll, get, getRegion, lockItem, putFromLoad, putFromLoad, remove, removeAll, unlockItem, unlockRegion

构造器详细资料

EntityReadWriteAccess

public EntityReadWriteAccess(DomainDataRegion domainDataRegion,
                             CacheKeysFactory keysFactory,
                             DomainDataStorageAccess storageAccess,
                             EntityDataCachingConfig entityAccessConfig)

方法详细资料

getAccessType

public AccessType getAccessType()

从接口复制的说明: CachedDomainDataAccess

The type of access implemented

指定者:

getAccessType 在接口中 CachedDomainDataAccess

getAccessedDataClassification

protected AccessedDataClassification getAccessedDataClassification()

指定者:

getAccessedDataClassification 在类中 AbstractReadWriteAccess

getVersionComparator

protected Comparator getVersionComparator()

指定者:

getVersionComparator 在类中 AbstractReadWriteAccess

generateCacheKey

public Object generateCacheKey(Object id,
                               EntityPersister rootEntityDescriptor,
                               SessionFactoryImplementor factory,
                               String tenantIdentifier)

从接口复制的说明: EntityDataAccess

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

指定者:

generateCacheKey 在接口中 EntityDataAccess

参数:

id - the primary identifier of the entity

rootEntityDescriptor - Hierarchy for which a key is being generated

factory - a reference to the current SessionFactory

tenantIdentifier - the tenant id, or null if multi-tenancy is not being used.

返回:

a key which can be used to identify this entity on this same region todo (6.0) : the access for an entity knows the entity hierarchy and the factory. why pass them in?

getCacheKeyId

public Object getCacheKeyId(Object cacheKey)

从接口复制的说明: EntityDataAccess

Performs reverse operation to EntityDataAccess.generateCacheKey(java.lang.Object, org.hibernate.persister.entity.EntityPersister, org.hibernate.engine.spi.SessionFactoryImplementor, java.lang.String)

指定者:

getCacheKeyId 在接口中 EntityDataAccess

参数:

cacheKey - key previously returned from EntityDataAccess.generateCacheKey(java.lang.Object, org.hibernate.persister.entity.EntityPersister, org.hibernate.engine.spi.SessionFactoryImplementor, java.lang.String)

返回:

original id passed to EntityDataAccess.generateCacheKey(java.lang.Object, org.hibernate.persister.entity.EntityPersister, org.hibernate.engine.spi.SessionFactoryImplementor, java.lang.String)

insert

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

从接口复制的说明: EntityDataAccess

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

指定者:

insert 在接口中 EntityDataAccess

参数:

session - Current session

key - The item key

value - The item

version - The item's version value

返回:

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

afterInsert

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

从接口复制的说明: EntityDataAccess

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

指定者:

afterInsert 在接口中 EntityDataAccess

参数:

session - Current session

key - The item key

value - The item

version - The item's version value

返回:

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

update

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

从接口复制的说明: EntityDataAccess

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

指定者:

update 在接口中 EntityDataAccess

参数:

session - Current session

key - The item key

value - The item

currentVersion - The item's current version value

previousVersion - The item's previous version value

返回:

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

afterUpdate

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

从接口复制的说明: EntityDataAccess

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

指定者:

afterUpdate 在接口中 EntityDataAccess

参数:

session - Current session

key - The item key

value - The item

currentVersion - The item's current version value

previousVersion - The item's previous version value

lock - The lock previously obtained from CachedDomainDataAccess.lockItem(org.hibernate.engine.spi.SharedSessionContractImplementor, java.lang.Object, java.lang.Object)

返回:

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

lockRegion

public SoftLock lockRegion()

从接口复制的说明: CachedDomainDataAccess

Lock the entire region

指定者:

lockRegion 在接口中 CachedDomainDataAccess

覆盖:

lockRegion 在类中 AbstractCachedDomainDataAccess

返回:

A representation of our lock on the item; or null.