Package org.hibernate.ogm.transaction.impl

Source Code of org.hibernate.ogm.transaction.impl.JTATransactionManagerTransactionFactory

/*
* Hibernate OGM, Domain model persistence for NoSQL datastores
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.ogm.transaction.impl;

import javax.transaction.SystemException;
import javax.transaction.UserTransaction;

import org.hibernate.ConnectionReleaseMode;
import org.hibernate.TransactionException;
import org.hibernate.engine.transaction.internal.jta.JtaStatusHelper;
import org.hibernate.engine.transaction.jta.platform.spi.JtaPlatform;
import org.hibernate.engine.transaction.spi.TransactionCoordinator;
import org.hibernate.engine.transaction.spi.TransactionFactory;
import org.hibernate.engine.transaction.spi.TransactionImplementor;

/**
* TransactionFactory using JTA transactions exclusively from the TransactionManager
*
* @author Emmanuel Bernard &lt;emmanuel@hibernate.org&gt;
*/
public class JTATransactionManagerTransactionFactory implements TransactionFactory {

  @Override
  public TransactionImplementor createTransaction(TransactionCoordinator coordinator) {
    return new JTATransactionManagerTransaction( coordinator );
  }

  @Override
  public boolean canBeDriver() {
    return true;
  }

  @Override
  public boolean compatibleWithJtaSynchronization() {
    return true;
  }

  @Override
  public boolean isJoinableJtaTransaction(TransactionCoordinator transactionCoordinator,
      TransactionImplementor transaction) {
    try {
      final JtaPlatform jtaPlatform = transactionCoordinator
          .getTransactionContext()
          .getTransactionEnvironment()
          .getJtaPlatform();
      if ( jtaPlatform == null ) {
        throw new TransactionException( "Unable to check transaction status" );
      }
      if ( jtaPlatform.retrieveTransactionManager() != null ) {
        return JtaStatusHelper.isActive( jtaPlatform.retrieveTransactionManager().getStatus() );
      }
      else {
        final UserTransaction ut = jtaPlatform.retrieveUserTransaction();
        return ut != null && JtaStatusHelper.isActive( ut );
      }
    }
    catch ( SystemException se ) {
      throw new TransactionException( "Unable to check transaction status", se );
    }
  }

  @Override
  public ConnectionReleaseMode getDefaultReleaseMode() {
    return ConnectionReleaseMode.AFTER_STATEMENT;
  }
}
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