TransactionalMongo

TransactionalMongo provides JPA-like dirty checking for Spring Data MongoDB.
It allows you to update entities without explicitly calling save(). Just load your entity, modify its fields, and changes will be automatically detected and persisted at the end of the method.

---

Features

• ✅ Dirty Checking for MongoDB entities (similar to JPA/Hibernate).
• ✅ Works with plain POJOs annotated as MongoDB documents.
• ✅ No need to call save() manually — only update the fields you want.
• ✅ Optional timestamp support (updatedAt) via the LastModifiedDate interface.

---

Installation

Add the dependency from Maven Central:

dependencies {
    implementation 'io.github.kamillcream:transactional-mongo-core:1.0.0'
}

---

Usage

Annotate service methods with @TransactionalMongo

@Service
public class UserService {
    private final MongoEntityLoader loader;

    public UserService(MongoEntityLoader loader) {
        this.loader = loader;
    }

    @TransactionalMongo
    public void updateUserName(String id, String newName) {
        User user = loader.findById(id, User.class);
        if (user == null) throw new RuntimeException("User not found");
        user.setName(newName);
    }
}

• No repository.save() is required.
• The library will detect changes and persist them automatically.
• You must load the target entity using MongoEntityLoader instead of the Repository.