Forms, ADF and JET a Non-Aggression Pact
- 1. Forms, ADF and JET a Non- Aggression Pact Florin Marcus
- 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?
- 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 β βThe Standardβ for Webapps β Scales very well β Both JET and ADF supports it. Disadvantages β Limitations on reusing Formβs PL SQL code (no βpost changesβ) 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 βUnacceptableβ - 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