// WARNING: (andrus) if we ever decide to make this method protected or public, we
// need to change the signature to avoid API dependency on commons-collections
Object runInTransaction(Transformer operation) {
// user or container-managed or nested transaction
if (Transaction.getThreadTransaction() != null) {
return operation.transform(null);
}
// Cayenne-managed transaction
Transaction transaction = createTransaction();
Transaction.bindThreadTransaction(transaction);
try {
// implicit begin..
Object result = operation.transform(null);
transaction.commit();
return result;
} catch (Exception ex) {
transaction.setRollbackOnly();
// must rethrow
if (ex instanceof CayenneRuntimeException) {
throw (CayenneRuntimeException) ex;
} else {
throw new CayenneRuntimeException(ex);
}
} finally {
Transaction.bindThreadTransaction(null);
if (transaction.getStatus() == Transaction.STATUS_MARKED_ROLLEDBACK) {
try {
transaction.rollback();
} catch (Exception rollbackEx) {
// although we don't expect an exception here, print the stack, as
// there have been some Cayenne bugs already (CAY-557) that were
// masked by this 'catch' clause.
jdbcEventLogger.logQueryError(rollbackEx);
}
}
}
}
