org.hibernate.cache.spi.CollectionRegion 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
* statements applied by the authors. All third-party contributions are
* 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;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.spi.access.AccessType;
import org.hibernate.cache.spi.access.CollectionRegionAccessStrategy;
/**
* Defines the contract for a cache region which will specifically be used to
* store collection data.
*
* Impl note: Hibernate always deals with changes to collections which
* (potentially) has its data in the L2 cache by removing that collection
* data; in other words it never tries to update the cached state, thereby
* allowing it to avoid a bunch of concurrency problems.
*
* @author Steve Ebersole
*/
public interface CollectionRegion extends TransactionalDataRegion {
/**
* Build an access strategy for the requested access type.
*
* @param accessType The type of access strategy to build; never null.
* @return The appropriate strategy contract for accessing this region
* for the requested type of access.
* @throws org.hibernate.cache.CacheException Usually indicates mis-configuration.
*/
public CollectionRegionAccessStrategy buildAccessStrategy(AccessType accessType) throws CacheException;
}