程序包 org.hibernate.cache.spi.support

类 AbstractCachedDomainDataAccess

java.lang.Object

org.hibernate.cache.spi.support.AbstractCachedDomainDataAccess

所有已实现的接口:

CachedDomainDataAccess, AbstractDomainDataRegion.Destructible

直接已知子类:

AbstractCollectionDataAccess, AbstractEntityDataAccess, AbstractNaturalIdDataAccess, AbstractReadWriteAccess

public abstract class AbstractCachedDomainDataAccess
extends Object
implements CachedDomainDataAccess, AbstractDomainDataRegion.Destructible

作者:

Steve Ebersole

构造器概要

构造器

限定符	构造器	说明
protected	AbstractCachedDomainDataAccess(DomainDataRegion region, DomainDataStorageAccess storageAccess)

方法概要

修饰符和类型	方法	说明
protected void	clearCache()
boolean	contains(Object key)	Determine whether this region contains data for the given key.
void	destroy()
void	evict(Object key)	Forcibly evict an item from the cache immediately without regard for transaction isolation and/or locking.
void	evictAll()	Forcibly evict all items from the cache immediately without regard for transaction isolation.
Object	get(SharedSessionContractImplementor session, Object key)	Attempt to retrieve an object from the cache.
DomainDataRegion	getRegion()	The region containing the data being accessed
protected DomainDataStorageAccess	getStorageAccess()
SoftLock	lockRegion()	Lock the entire region
boolean	putFromLoad(SharedSessionContractImplementor session, Object key, Object value, Object version)	Attempt to cache an object, afterQuery loading from the database.
boolean	putFromLoad(SharedSessionContractImplementor session, Object key, Object value, Object version, boolean minimalPutOverride)	Attempt to cache an object, afterQuery loading from the database, explicitly specifying the minimalPut behavior.
void	remove(SharedSessionContractImplementor session, Object key)	Called afterQuery an item has become stale (beforeQuery the transaction completes).
void	removeAll(SharedSessionContractImplementor session)	Remove all data for this accessed type
void	unlockRegion(SoftLock lock)	Called after we have finished the attempted invalidation of the entire region

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

getAccessType, lockItem, unlockItem

构造器详细资料

AbstractCachedDomainDataAccess

protected AbstractCachedDomainDataAccess(DomainDataRegion region,
                                         DomainDataStorageAccess storageAccess)

方法详细资料

getRegion

public DomainDataRegion getRegion()

从接口复制的说明: CachedDomainDataAccess

The region containing the data being accessed

指定者:

getRegion 在接口中 CachedDomainDataAccess

getStorageAccess

protected DomainDataStorageAccess getStorageAccess()

clearCache

protected void clearCache()

contains

public boolean contains(Object key)

从接口复制的说明: CachedDomainDataAccess

Determine whether this region contains data for the given key.

The semantic here is whether the cache contains data visible for the current call context. This should be viewed as a "best effort", meaning blocking should be avoided if possible.

指定者:

contains 在接口中 CachedDomainDataAccess

参数:

key - The cache key

返回:

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

get

public Object get(SharedSessionContractImplementor session,
                  Object key)

从接口复制的说明: CachedDomainDataAccess

Attempt to retrieve an object from the cache. Mainly used in attempting to resolve entities/collections from the second level cache.

指定者:

get 在接口中 CachedDomainDataAccess

参数:

session - Current session.

key - The key of the item to be retrieved.

返回:

the cached data or null

putFromLoad

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

从接口复制的说明: CachedDomainDataAccess

Attempt to cache an object, afterQuery loading from the database.

指定者:

putFromLoad 在接口中 CachedDomainDataAccess

参数:

session - Current session.

key - The item key

value - The item

version - the item version number

返回:

true if the object was successfully cached

putFromLoad

public boolean putFromLoad(SharedSessionContractImplementor session,
                           Object key,
                           Object value,
                           Object version,
                           boolean minimalPutOverride)

从接口复制的说明: CachedDomainDataAccess

Attempt to cache an object, afterQuery loading from the database, explicitly specifying the minimalPut behavior.

指定者:

putFromLoad 在接口中 CachedDomainDataAccess

参数:

session - Current session.

key - The item key

value - The item

version - the item version number

minimalPutOverride - Explicit minimalPut flag

返回:

true if the object was successfully cached

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

返回:

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

unlockRegion

public void unlockRegion(SoftLock lock)

从接口复制的说明: CachedDomainDataAccess

Called after we have finished the attempted invalidation of the entire region

指定者:

unlockRegion 在接口中 CachedDomainDataAccess

参数:

lock - The lock previously obtained from CachedDomainDataAccess.lockRegion()

remove

public void remove(SharedSessionContractImplementor session,
                   Object key)

从接口复制的说明: CachedDomainDataAccess

Called afterQuery an item has become stale (beforeQuery the transaction completes). This method is used by "synchronous" concurrency strategies.

指定者:

remove 在接口中 CachedDomainDataAccess

参数:

session - Current session.

key - The key of the item to remove

removeAll

public void removeAll(SharedSessionContractImplementor session)

从接口复制的说明: CachedDomainDataAccess

Remove all data for this accessed type

指定者:

removeAll 在接口中 CachedDomainDataAccess

evict

public void evict(Object key)

从接口复制的说明: CachedDomainDataAccess

Forcibly evict an item from the cache immediately without regard for transaction isolation and/or locking. This behavior is exactly Hibernate legacy behavior, but it is also required by JPA - so we cannot remove it.

Used from JPA's Cache.evict(Class, Object), as well as the Hibernate extension Cache.evictEntityData(Class, Serializable) and Cache.evictEntityData(String, Serializable)

指定者:

evict 在接口中 CachedDomainDataAccess

参数:

key - The key of the item to remove

evictAll

public void evictAll()

从接口复制的说明: CachedDomainDataAccess

Forcibly evict all items from the cache immediately without regard for transaction isolation. This behavior is exactly Hibernate legacy behavior, but it is also required by JPA - so we cannot remove it.

Used from our JPA impl of Cache.evictAll() as well as the Hibernate extensions Cache.evictEntityData(Class), Cache.evictEntityData(String) and Cache.evictEntityData()

指定者:

evictAll 在接口中 CachedDomainDataAccess

destroy

public void destroy()

指定者:

destroy 在接口中 AbstractDomainDataRegion.Destructible