The Challenges Oracle Forms Migration to ADF
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The document discusses the challenges of migrating Oracle Forms applications to the Application Development Framework (ADF). It provides a roadmap for the migration including defining feasibility and phases, analyzing applications to identify obsolete code, relocating business logic, and redesigning applications as needed. The document recommends starting with a pilot migration project to integrate Forms with service-oriented architecture and Java, while pursuing new development in ADF. It also discusses tools that can assist with the migration like JHeadstart and provides recommendations on reporting options after migrating to ADF.
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The Challenges Oracle Forms Migration to ADF
- 1. The Challenges Oracle forms Migration to ADF Session 2 Presenter: Zeeshan Baig
- 2. Agenda Why Migrate? Forms Modernization Roadmap to ADF migration Migration tools Reporting Tools Recommendation Demo JHeadstart OTN Demo Performing Common Forms tasks in ADF Integrating Forms with Java using Webservices & PJCs
- 3. Why Migrate? Meeting new business challenges Meeting User expectations and demands Modern technology Better performance To achieve active sustainment before system becomes legacy To avoid obsolescence
- 4. Forms Modernization - I Migrate and integrate Use SOA to extend current applications and to align their business and IT needs Allows retain investment in Oracle Forms while leveraging the opportunities offered by complementing technologies Transition should be a journey not single transformation
- 5. Forms Modernization - II How to achieve Modernization? Move to Web Integrate with SOA Use Webserives Use PJCs (Pluggable Java Components)
- 6. Roadmap to ADF Migration Define target & starting point Define Phases Feasibility Application analysis Identify obsolete features Remove unused code Re-locate business logic Redesign application issues Fine tune
- 7. Define Feasibility R&D is time consuming and difficult to estimate Define Starting and Ending Points Answer the following questions Where we want to go? Where we are now? What are our objectives? Future Surprises
- 8. Application Analysis Application grown over the years Initial developers are not with the company Is every thing is Documented ? Do we have Test cases or Version control system? Do we have Complete Source code ?
- 9. Obsolete objects Few components are Obsolete Calendar library Alerts Graphics rectangles Visual attributes Program units, LOVs Deletion of obsolete components from Forms means less hassle in migration
- 10. Business logic - I In Forms business logic is tightly coupled with the UI ADF is MVC architecture So Where to store Business logic? What skills we have ? Do we have more PL/SQL Developers? Do we have more Java Developers?
- 11. Business logic - II Forms code is PL/SQL Logic in Database PL/SQL code faster execution better performance Callable from Webservices JDBC Middle tier Java coding Recommendation Move to database if more PL/SQL Move to middle tier if Logic is More UI Interactive
- 12. Redesign Application Issues - I Tool supported Redesign Pros Part of application migrated Investment protection Cons Not 100% migrated PL/SQL logic required to re-locate Some features would required redesigning Hard to estimate the migration
- 13. Redesign Application Issues - II Re-design manually from scratch Pros Ownership Control on application Process improvement Cons Costly / Investment lost Time consuming Risk for Project success or failure Future creep
- 14. Fine tune Web based UI standards A form has 100 fields not suitable for web based style pages.
- 15. Migration tools JHeadstart Extension to Jdeveloper and ADF Same as designer does for Forms OraFormsFaces Third party tool PITS.CONN Third party Tool similar to JHeadstart
- 16. Reporting Tools * No direct APIs for Oracle ADF From Oracle Open Source BI Publisher Jasper Reports Popular modern choice Open source tool for report design Integration with Oracle Apps Java implementation and integration Integration with MS Office suite Fairly popular "free solution" Expensive No dedicated ADF-API Not as sophisticated as others XSQL Pages BIRT Examples in the ADF Toy Store demo Open source Eclipse based reporting Use the Apache FOP serializer for PDF tool tbc: Pricing? No dedicated ADF-API Oracle Reports Sophisticated paper based reporting solution Antiquated user interface with difficult frame based solution; steep beginner learning curve Oracle Application Server 10.1.2 only, not supported by WLS 10.3, will be in Fusion Middleware (FMW) Server 11g *Courtesy: adf_emg Methodology group
- 17. Recommendation Migrate to latest Forms i.e. 11g Integrate Forms with SOA and Java New development to ADF Start pilot projects to migration to APEX and ADF
- 18. Demo JHeadstart OTN Demo Performing Common Forms Tasks in ADF Using PJCs in Forms Using Webservices in Forms