org.hibernate.engine.transaction.jta.platform.internal.AbstractJtaPlatform Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 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.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.engine.transaction.jta.platform.internal;
import java.util.Map;
import javax.transaction.Synchronization;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;
import javax.transaction.UserTransaction;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.engine.jndi.spi.JndiService;
import org.hibernate.engine.transaction.jta.platform.spi.JtaPlatform;
import org.hibernate.internal.util.config.ConfigurationHelper;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.spi.Configurable;
import org.hibernate.service.spi.ServiceRegistryAwareService;
import org.hibernate.service.spi.ServiceRegistryImplementor;
/**
* @author Steve Ebersole
*/
public abstract class AbstractJtaPlatform
implements JtaPlatform, Configurable, ServiceRegistryAwareService, TransactionManagerAccess {
private boolean cacheTransactionManager;
private boolean cacheUserTransaction;
private ServiceRegistryImplementor serviceRegistry;
private final JtaSynchronizationStrategy tmSynchronizationStrategy = new TransactionManagerBasedSynchronizationStrategy( this );
@Override
public void injectServices(ServiceRegistryImplementor serviceRegistry) {
this.serviceRegistry = serviceRegistry;
}
protected ServiceRegistry serviceRegistry() {
return serviceRegistry;
}
protected JndiService jndiService() {
return serviceRegistry().getService( JndiService.class );
}
protected abstract TransactionManager locateTransactionManager();
protected abstract UserTransaction locateUserTransaction();
public void configure(Map configValues) {
cacheTransactionManager = ConfigurationHelper.getBoolean(
AvailableSettings.JTA_CACHE_TM,
configValues,
canCacheTransactionManagerByDefault()
);
cacheUserTransaction = ConfigurationHelper.getBoolean(
AvailableSettings.JTA_CACHE_UT,
configValues,
canCacheUserTransactionByDefault()
);
}
protected boolean canCacheTransactionManagerByDefault() {
return true;
}
protected boolean canCacheUserTransactionByDefault() {
return false;
}
protected boolean canCacheTransactionManager() {
return cacheTransactionManager;
}
protected boolean canCacheUserTransaction() {
return cacheUserTransaction;
}
private TransactionManager transactionManager;
@Override
public TransactionManager retrieveTransactionManager() {
if ( canCacheTransactionManager() ) {
if ( transactionManager == null ) {
transactionManager = locateTransactionManager();
}
return transactionManager;
}
else {
return locateTransactionManager();
}
}
@Override
public TransactionManager getTransactionManager() {
return retrieveTransactionManager();
}
private UserTransaction userTransaction;
@Override
public UserTransaction retrieveUserTransaction() {
if ( canCacheUserTransaction() ) {
if ( userTransaction == null ) {
userTransaction = locateUserTransaction();
}
return userTransaction;
}
return locateUserTransaction();
}
@Override
public Object getTransactionIdentifier(Transaction transaction) {
// generally we use the transaction itself.
return transaction;
}
protected JtaSynchronizationStrategy getSynchronizationStrategy() {
return tmSynchronizationStrategy;
}
@Override
public void registerSynchronization(Synchronization synchronization) {
getSynchronizationStrategy().registerSynchronization( synchronization );
}
@Override
public boolean canRegisterSynchronization() {
return getSynchronizationStrategy().canRegisterSynchronization();
}
@Override
public int getCurrentStatus() throws SystemException {
return retrieveTransactionManager().getStatus();
}
}