org.hibernate.cache.impl.bridge

Class BaseTransactionalDataRegionAdapter

java.lang.Object

org.hibernate.cache.impl.bridge.BaseRegionAdapter

org.hibernate.cache.impl.bridge.BaseTransactionalDataRegionAdapter

All Implemented Interfaces:

Region, TransactionalDataRegion

Direct Known Subclasses:

CollectionRegionAdapter, EntityRegionAdapter

public abstract class BaseTransactionalDataRegionAdapter
extends BaseRegionAdapter
implements TransactionalDataRegion

Basic adapter bridging between Region and Cache.

Author:

Steve Ebersole

Field Summary

Fields

Modifier and Type	Field and Description
protected CacheDataDescription	metadata

Fields inherited from class org.hibernate.cache.impl.bridge.BaseRegionAdapter

settings, underlyingCache

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BaseTransactionalDataRegionAdapter(Cache underlyingCache, Settings settings, CacheDataDescription metadata)

Method Summary

Modifier and Type	Method and Description
CacheDataDescription	getCacheDataDescription()
boolean	isTransactionAware() Is the underlying cache implementation aware of (and "participating in") ongoing JTA transactions? Regions which report that they are transaction-aware are considered "synchronous", in that we assume we can immediately (i.e.

Methods inherited from class org.hibernate.cache.impl.bridge.BaseRegionAdapter

clear, contains, destroy, getElementCountInMemory, getElementCountOnDisk, getName, getSizeInMemory, getTimeout, nextTimestamp, toMap

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.cache.Region

contains, destroy, getElementCountInMemory, getElementCountOnDisk, getName, getSizeInMemory, getTimeout, nextTimestamp, toMap

Field Detail

metadata

protected final CacheDataDescription metadata

Constructor Detail

BaseTransactionalDataRegionAdapter

protected BaseTransactionalDataRegionAdapter(Cache underlyingCache,
                                             Settings settings,
                                             CacheDataDescription metadata)

Method Detail

isTransactionAware

public boolean isTransactionAware()

Description copied from interface: TransactionalDataRegion

Is the underlying cache implementation aware of (and "participating in") ongoing JTA transactions?

Regions which report that they are transaction-aware are considered "synchronous", in that we assume we can immediately (i.e. synchronously) write the changes to the cache and that the cache will properly manage application of the written changes within the bounds of ongoing JTA transactions. Conversely, regions reporting false are considered "asynchronous", where it is assumed that changes must be manually delayed by Hibernate until we are certain that the current transaction is successful (i.e. maintaining READ_COMMITTED isolation).

Specified by:

isTransactionAware in interface TransactionalDataRegion

Returns:

True if transaction aware; false otherwise.

getCacheDataDescription

public CacheDataDescription getCacheDataDescription()

Specified by:

getCacheDataDescription in interface TransactionalDataRegion