Android Room Persistence Library: Handling errors

I'm trying to figure out how to handle errors with Room. I have the following interactor that inserts a task in the database:

TaskInteractor.java

public class TaskInteractor extends AbstractInteractor implements TaskContract.Interactor {

    final TaskRepository mRepository;

    interface Callback {
        void onSuccess();
        void onFailure(Throwable t);
    }

    @Inject
    public TaskInteractor(WorkerThread workerThread,
                             MainThread mainThread,
                             TaskRepository repository) {
        super(workerThread, mainThread);
        this.mRepository = repository;
    }

    @Override
    public void insertTask(final Task task, final Callback callback)
            throws SQLiteException {
        mWorkerThread.get().execute(new Runnable() {
            @Override
            public void run() {
                try {
                    mRepository.insertTask(task);
                } catch (SQLiteException exeption) {
                    Timber.e("Insertion failed. Exception: " + exeption.getMessage());
                    callback.onFailure(exeption);
                    throw exeption;
                }
                Timber.d("Insertion succeeded.");
                callback.onSuccess();
            }
        });
    }
}

In insertTask I use a try-catch block to check if a SQLiteException happened. If it does, I throw the exception. But is this a good way of handling errors or is there maybe a better way?

Throwing the exception after catching it may lead to redundant error handling in higher layers. Instead, consider refining your error-handling strategy depending on your application's architecture and requirements.

My suggestions:

1. Since you're already using a Callback interface, you can rely on its onFailure(Throwable t) method to propagate errors gracefully. Avoid re-throwing the exception after invoking callback.onFailure(). This will centralize error handling without escalating exceptions unnecessarily.
2. Instead of catching a generic SQLiteException, consider handling specific database-related issues (e.g., constraint violations, connection issues) using more targeted exception types (if applicable). This gives you better control over recovery strategies for each scenario. 3.Create a custom exception type like DatabaseOperationException that wraps SQLiteException. This allows you to propagate higher-level error messages to your application layer while retaining context for debugging.
3. If tasks involve transactional operations (multiple inserts/updates), ensure you roll back transactions upon errors. Room supports transactions out of the box, using the annotation @Transaction.
4. Implement a global error-handling mechanism in your application, such as an error manager or mediator, to deal with unexpected database issues uniformly across all interactors/repositories.
5. Enhance your logging by adding more contextual information about the failure (e.g., task details, database state) to aid troubleshooting.