package org.infinispan.query.backend;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;
import org.infinispan.query.logging.Log;
import org.infinispan.util.logging.LogFactory;
/**
* Transaction related helper
*
* @author gustavonalle
* @since 7.0
*/
public final class TransactionHelper {
private static final Log LOGGER = LogFactory.getLog(TransactionHelper.class, Log.class);
private final TransactionManager transactionManager;
public TransactionHelper(final TransactionManager transactionManager) {
this.transactionManager = transactionManager;
}
public void resume(final Transaction transaction) {
if (transaction != null) {
try {
transactionManager.resume(transaction);
} catch (Exception e) {
throw LOGGER.unableToResumeSuspendedTx(transaction, e);
}
}
}
public Transaction suspendTxIfExists() {
if (transactionManager == null) {
return null;
}
try {
Transaction tx;
if ((tx = transactionManager.getTransaction()) != null) {
transactionManager.suspend();
}
return tx;
} catch (Exception e) {
throw LOGGER.unableToSuspendTx(e);
}
}
}