@Override
public synchronized void rollback() {
Preconditions.checkArgument(isOpen(), "The transaction has already been closed");
try {
txHandle.rollback();
} catch (Exception e) {
throw new TitanException("Could not rollback transaction due to exception", e);
} finally {
close();
}
}
@Override
public synchronized void commit() {
Preconditions.checkArgument(isOpen(), "The transaction has already been closed");
try {
if (hasModifications()) {
graph.save(addedRelations.getAll(), deletedRelations.values(), this);
}
txHandle.commit();
} catch (Exception e) {
try {
txHandle.rollback();
} catch (StorageException e1) {
throw new TitanException("Could not rollback after a failed commit", e);
}
throw new TitanException(
"Could not commit transaction due to exception during persistence", e);
} finally {
close();
}
}