All Downloads are FREE. Search and download functionalities are using the official Maven repository.
Please wait. This can take some minutes ...
Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $
You can buy this project and download/modify it how often you want.
org.hibernate.testing.cache.ReadWriteEntityRegionAccessStrategy Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.testing.cache;
import java.util.Comparator;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.internal.DefaultCacheKeysFactory;
import org.hibernate.cache.spi.EntityRegion;
import org.hibernate.cache.spi.access.EntityRegionAccessStrategy;
import org.hibernate.cache.spi.access.SoftLock;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.persister.entity.EntityPersister;
/**
* @author Strong Liu
*/
class ReadWriteEntityRegionAccessStrategy extends AbstractReadWriteAccessStrategy
implements EntityRegionAccessStrategy {
private final EntityRegionImpl region;
ReadWriteEntityRegionAccessStrategy(EntityRegionImpl region) {
this.region = region;
}
@Override
public boolean insert(SessionImplementor session, Object key, Object value, Object version) throws CacheException {
return false;
}
@Override
public boolean update(SessionImplementor session, Object key, Object value, Object currentVersion, Object previousVersion)
throws CacheException {
return false;
}
@Override
public boolean afterInsert(SessionImplementor session, Object key, Object value, Object version) throws CacheException {
try {
writeLock.lock();
Lockable item = (Lockable) region.get( session, key );
if ( item == null ) {
region.put( session, key, new Item( value, version, region.nextTimestamp() ) );
return true;
}
else {
return false;
}
}
finally {
writeLock.unlock();
}
}
@Override
public boolean afterUpdate(SessionImplementor session, Object key, Object value, Object currentVersion, Object previousVersion, SoftLock lock)
throws CacheException {
try {
writeLock.lock();
Lockable item = (Lockable) region.get( session, key );
if ( item != null && item.isUnlockable( lock ) ) {
Lock lockItem = (Lock) item;
if ( lockItem.wasLockedConcurrently() ) {
decrementLock(session, key, lockItem );
return false;
}
else {
region.put( session, key, new Item( value, currentVersion, region.nextTimestamp() ) );
return true;
}
}
else {
handleLockExpiry(session, key, item );
return false;
}
}
finally {
writeLock.unlock();
}
}
@Override
protected BaseGeneralDataRegion getInternalRegion() {
return region;
}
@Override
protected boolean isDefaultMinimalPutOverride() {
return region.getSettings().isMinimalPutsEnabled();
}
@Override
Comparator getVersionComparator() {
return region.getCacheDataDescription().getVersionComparator();
}
@Override
public EntityRegion getRegion() {
return region;
}
@Override
public Object generateCacheKey(Object id, EntityPersister persister, SessionFactoryImplementor factory, String tenantIdentifier) {
return region.getRegionFactory().getCacheKeysFactory().createEntityKey( id, persister, factory, tenantIdentifier );
}
@Override
public Object getCacheKeyId(Object cacheKey) {
return region.getRegionFactory().getCacheKeysFactory().getEntityId( cacheKey );
}
}