org.hibernate.cache.spi.TransactionalDataRegion Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008-2011, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
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* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
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*/
package org.hibernate.cache.spi;
/**
* Defines contract for regions which hold transactionally-managed data.
*
* The data is not transactionally managed within the region; merely it is
* transactionally-managed in relation to its association with a particular
* {@link org.hibernate.Session}.
*
* @author Steve Ebersole
*/
public interface TransactionalDataRegion extends Region {
/**
* 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).
*
* @return True if transaction aware; false otherwise.
*/
public boolean isTransactionAware();
public CacheDataDescription getCacheDataDescription();
}