package org.neo4j.kernel;
import javax.transaction.RollbackException;
import javax.transaction.Status;
import javax.transaction.SystemException;
import javax.transaction.TransactionManager;
import org.neo4j.graphdb.Transaction;
import org.neo4j.graphdb.TransactionFailureException;
public class TopLevelTransaction implements Transaction
{
private boolean success = false;
private final TransactionManager transactionManager;
public TopLevelTransaction( TransactionManager transactionManager )
{
this.transactionManager = transactionManager;
}
public void failure()
{
this.success = false;
try
{
transactionManager.getTransaction().setRollbackOnly();
}
catch ( Exception e )
{
throw new TransactionFailureException(
"Failed to mark transaction as rollback only.", e );
}
}
public void success()
{
success = true;
}
protected boolean isMarkedAsSuccessful()
{
try
{
return success && transactionManager.getTransaction().getStatus() !=
Status.STATUS_MARKED_ROLLBACK;
}
catch ( SystemException e )
{
throw new RuntimeException( e );
}
}
protected TransactionManager getTransactionManager()
{
return this.transactionManager;
}
public void finish()
{
try
{
if ( success )
{
if ( transactionManager.getTransaction() != null )
{
transactionManager.getTransaction().commit();
}
}
else
{
if ( transactionManager.getTransaction() != null )
{
transactionManager.getTransaction().rollback();
}
}
}
catch ( RollbackException e )
{
throw new TransactionFailureException( "Unable to commit transaction", e );
}
catch ( Exception e )
{
if ( success )
{
throw new TransactionFailureException(
"Unable to commit transaction", e );
}
else
{
throw new TransactionFailureException(
"Unable to rollback transaction", e );
}
}
}
}