This document discusses different Oracle technologies for building web applications, including Oracle ADF, Oracle JET, and integrating Oracle Forms. It provides an overview of what customers like and dislike about ADF. It also discusses the advantages of ADF versus JET, integration of Forms and ADF, business integration patterns, and approaches for learning ADF.

1. Forms, ADF and JET
a Non- Aggression Pact
Florin Marcus

2. Company Profile

3. Agenda

4. What customers dislike about ADF?

5. What customers like about ADF?

6. What customers like about ADF?

7. What customers like about ADF?

8. Monitoring Performance

9. Forms and ADF
Who integrates Forms and ADF?

10. Who integrates Forms and ADF?

11. ADF - Oracle Metadata Services

12. Java Plugin
disconntinued
Consequences for Forms-ADF
integration

13. ADF- Forms UI integration

14. ADF- Forms UI integration

15. ADF- Forms UI integration

16. ADF- Forms UI integration

17. Oracle JET
Why Another Web Framework?

18. Oracle JET
Javascript Framework
Consumes REST/JSON
Open Source
No tooling support

19. Traditional System Architecture on Web
User Cache
1. Minimises
database
round-trips
2. Holds not
committed
information

20. Javascript Framework System Architecture
User Cache in
browser solutions:
1. HTML5
LocalStorage
2. IndexedDB

21. JET vs ADF
Advantages of Oracle JET
Public facing websites
Live data (ref#2)
High Availability support
(out of the box)
Advantages of Oracle ADF
Full development stack
Versatile
Superior at PL SQL integration
Great for code generation
Tooling support (building your
own wizards) - todo DB
Validator wizard

22. Building Your Own JDev wizards
Declarative PL SQL calls ROWTYPE support

23. Forms, ADF and JET
Business Integration patterns

24. Business Integration patterns
Database remains the
Best Place for business rules

25. Business Integration patterns
Advantages
● ‘The Standard’ for Webapps
● Scales very well
● Both JET and ADF supports it.
Disadvantages
● Limitations on reusing Form’s
PL SQL code (no ‘post
changes’)
Both ADF and JET
supports it
Stateless Connections

26. Business Integration patterns
Same connection is Guaranteed for the duration of user session.
Widely regarded as ‘Unacceptable’ - up until Websockets.
Fits the same transaction lifecycle as Oracle Forms, allows for
conversational state with PL SQL.
Supported by ADF only
Stateful Connections

27. Websockets and database connections
Pessimistic Locking using Websockets
#REF1

28. Business Integration patterns
Best approach for PL SQL logic reuse in ADF:
Use Stateless Connection on landing pages, menus,
dashboards, search screens.
Switch to Stateful Connection when editing data
(data input screens) .

29. Learning
ADF
Journey from Forms to ADF

30. Learning ADF
3 Programming Languages: Java,
Javascript, Groovy
4 Major Java EE technologies: Servlets,
Java Server Faces, JDBC
ADF is build on top of:

31. Learning ADF

32. Learning ADF
Learning the whole ADF Stack may prove a challenge for the most
talented Forms Developer.
Initially, separate the team into roles:
A. Business Developers (PL SQL, ADF Business Components)
B. Web Developers (UI)
Conclusions

33. References
Oracle ADF
www.oracle.com/technetwork/developer-tools/adf/overview/index.html;
jsessionid=6R39V8WhqTQ7HMb2vTQTkzbP5XRFgs4RQzyxQ7fqxH9y6p6vKXk4!-460884186
Oracle JET
www.oracle.com/webfolder/technetwork/jet/index.html
ADF Insider Essentials
www.youtube.com/channel/UClAYKxUUFbBb6QAWH_CXY6g
ADF Architecture TV
www.youtube.com/channel/UCRvu_p8-tRgNi_Cd45Ll-fw

34. References
#ref1 Saving ADF Queries
andrejusb.blogspot.co.uk/2014/05/personalising-adf-query-with-mds-user.html
#ref2: Websocket Notification on Browser Disconnects
andrejusb.blogspot.co.uk/2016/01/automatic-adf-logout-on-browser-close.html
#ref3: Stateful/Stateless Connection Switch
andrejusb.blogspot.co.uk/2014/06/adf-bc-reserved-mode-for-db-connection.html
#ref4:
Oracle JET Live data
andrejusb.blogspot.co.uk/2016/02/oracle-jet-and-websocket-integration.html
Oracle ADF Live data
andrejusb.blogspot.co.uk/2015/05/adf-and-two-way-websocket-communication.html