Trisha Gee gives a rough guide to the new java driver for MongoDB

1. @trisha_gee
The New Java Driver
Trisha Gee
Java Developer @ 10gen

2. Introduction

3. DISCLAIMER

4. What’s the point then?

5. Design Goals

6. Design Goals
• Cleaner design
• Intuitive API
• Consistency
• Sane Exception handling
• Test friendly
• Backwards compatible

7. And async?

8. Tell me about it...

9. Cleaner Design

10. Cleaner Design

11. Cleaner Design

12. Cleaner Design

13. Cleaner Design

14. Cleaner Design

15. Cleaner Design

16. Cleaner Design

17. Cleaner Design

18. Cleaner Design

19. Cleaner Design

20. So What?

21. Legacy Applications

22. Your Java Application

23. Morphia & ODMs

24. Other drivers

25. Wasn’t that just the first
point?

26. Intuitive API - Find
collection.find(query).skip(1000).limit(100);
collection.filter(query).skip(1000).limit(100).all();

27. Intuitive API - Remove
collection.remove(query);
collection.filter(query).remove();

28. Intuitive API - Find and Modify
collection.findAndModify(query, update);
collection.findAndModify(query,
update,
sort,
false,
update,
true,
false);
collection.filter(query)
.sort(sort)
.modifyAndGet(update, Get.AfterChangeApplied);

29. Intuitive API
public interface MongoCollection<T>

30. Consistency
• Aided by the clean design
• Aids the intuitive API
• Enforced by coding standards

31. Consistency
collection.filter(query).limit(10).all();
collection.filter(query).limit(10).remove();
collection.filter(query).sort(sortCriteria).one();
collection.filter(query).sort(sortCriteria).remove();
collection.filter(query).sort(sortCriteria).count();
Document result1 = collection.filter(query)
.sort(sortCriteria)
.removeAndGet();
Document result2 = collection.filter(query)
.sort(sortCriteria)
.modifyAndGet(update,AfterChangeApplied);

32. Sane Exception Handling
• Client Exceptions
• Server Exceptions
• No more parsing error Strings

33. Test Friendly
• Interfaces!
• Acceptance, functional and unit tests

34. Backwards compatible
• Very important!

35. And...
• Documentation
•Self documenting code
•Unit and Acceptance Tests
•JavaDoc
•Tutorials
•Blogs

36. In Summary

37. In Summary
• Cleaner design
• Intuitive API
• Consistency
• Sane Exception handling
• Test friendly
• Backwards compatible

38. Questions?
@trisha_gee