www'devoxx'com

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www.devoxx.com
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JSF on Rails JDeveloper 11g, ADF 11g and
JHeadstart

• Lucas Jellema
• Expertise Manager
• AMIS (The Netherlands)

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Overall Presentation Goal

• Demonstrate the rapid, declarative development of
  Rich Internet Applications (EJB/JPA or ADF
  Business Components, JavaServer Faces) using
  JDeveloper 11g ADF 11g
• and the warp-speed on-rails model driven
  development using JHeadstart 11g
• (entice you to try it out for yourself)

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Speakers qualifications

• Lucas Jellema is CTO at AMIS an Oracle, SOA
  Java specialist in The Netherlands
• Lucas Jellema is Oracle ACE Director
• Lucas Jellema regularly writes articles for media
  like JDJ, Java Magazine (Dutch), JavaLobby,
  Oracle Technology Network, and various Oracle
  related magazines
• Lucas Jellema presented in 2008 on Dutch Java
  User Group conference, JavaOne, Oracle Open
  World, Devoxx and various Oracle User Group
  events
• Lucas Jellema makes frequent contributions to the
  http//technology.amis.nl/blog weblog

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• Java developers spend most of their time on
  solving non-functional problems that have already
  been solved
• In other technology stacks
• In existing Java frameworks, libraries or tools
• By their (former) colleagues
• And sometimes even by themselves
• Over 90 of developer effort can be and should be
  oriented towards functional business requirements
• No focus and little effort on programming generic
  plumbing code or developing functionality
  available from frameworks
• Exploit declarative, predefined options in your
  technology stack and start programming in anger
  to go the extra mile

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Overview

• Demo JEE Application Development EJB 3.0/JPA
  JSFusing JDeveloper 11g with ADF 11g
• Discussion of remaining challenges
• Introduction of JSF on Rails with JHeadstart
• Demo Declarative, model-driven, zero-code
  generation of JEE Applications using JHeadstart
• Summary

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JEE Web Application on ADF

• ADF Oracles Application Development Framework
• (rich) JSF implementation (ADF Faces aka MyFaces
  Trinidad) as well as ADF Swing and Struts/JSP
  support
• its own persistency framework ADF Business
  Components (fka BC4J) as well as support for
  EJB/JPA, EclipseLink/TopLink, WebServices and 3rd
  party persistency solutions
• Infrastructure for Data Binding to decouple
  Model and ViewController (and implement rich JSF
  backing models)
• Note each of these elements can be used with or
  without the others

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The Data Model for the demo
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DEMO

• Demonstration rapid JEE Web Application
  Development
• JDeveloper 11g with ADF
• Business Tier EJB 3.0/JPA
• ADF Model
• Web Tier JavaServer Faces (ADF 11g Faces
  Rich Client Components)

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Rapid Demonstration Result

• Step One Master (table) Detail (table)

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Rapid Demonstration Result

• Step Two
• Wrap Employee Table in PanelCollection (Detach
  and run-time Column Management)
• Enable Sort on Employee Table

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Rapid Demonstration Result

• Step Three the Real Estate Challenge
• Accordion with Employee Table and Salary Graph
• Popup with extra context details (Department
  Manager)

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Rapid Demonstration Result

• Master-Detail synchronization
• Table-Table
• Sort ColumnManipulation
• Accordion
• Popup
• Chart
• (10 minutes

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Some Remaining Challenges

• Even though a lot of drag drop, still a lot of
  manual activity involved
• Because of that, keeping the pages consistent
  look feel, structure, interactivity can be a
  pain
• Absorb/Apply global changes in either the Model
  or the layout and interaction structure and
  pattern is quite hard
• Implementing common UI patterns List of Values,
  Search Forms, Navigation, Breadcrumbs can be
  made easier
• The learning curve is quite steep even though
  initially little programming is involved

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JHeadstart JSF on Rails

• JHeadstart generates an ADF JSF application
  from the model and a declarative definition of
  pages data usages
• For CRUD style applications
• or a headstart for process/task oriented
  applications
• Many common data, interaction and layout-patterns
  are supported with out-of-the-box generation
• Master-Detail(-Detail-.), Shuttle, List of
  Values
• Form, Table, Tree, Overflow areas, File
  upload/download
• Menu, Deeplink Navigation, Breadcrumb trail
• Run-time management of Resource Bundles and
  Custom Items
• Integrated Role based authorization for pages and
  items

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Develop iteratively with JHS

• Preparation
• Install JHeadstart extension for JDeveloper
• Enable JHeadstart on Web application
• Build (initial) business service with ADF BC
• Create (default) Application Definition
• Generate (initial) application JSF pages, Page
  Flows, Managed Beans Navigation rules, ADF Data
  Binding
• Repeatedly, in iterations
• Edit Application Definition
• Change Generator Templates
• Modify Model (ADF BC Business Service)
• Regenerate

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DEMO

• Demonstration JEE Web Application Developmenton
  Rails - Introducing JHeadstart
• JDeveloper 11g, ADF JHeadstart
• Business Tier ADF Business
  Components
• ADF Model
• Web Tier JavaServer Faces (ADF 11g Faces
  Rich Client Components)

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JSF on Rails Demo Results

• Menu
• Master-Detail
• Search Form
• Edit/Delete/Duplicate

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JSF on Rails Demo Results

• Editing the Application Definition

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JSF on Rails Demo Results
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Summary

• ADF 11g helps create rich JavaServer Faces
  applications on top of EJB/JPA, WebService or ADF
  Business Components Business Services
• ADF 11g Data Binding allow drag drop style data
  binding of complex data driven components (form,
  table, tree, shuttle, many graph types, slider,
  pivot table, )
• ADF 11g Faces (Rich Client Components) provide
  rich layout components (popup, panelsplitter,
  accordion, tabs..)
• JHeadstart 11g puts JSF/ADF on rails with
  extreme productive no code generation of CRUD
  applications

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Concluding statement

• Development of JavaServer Faces applications can
  and should be fast and productive yet rich and
  attractive with full focus on business
  functionality
• ADF 11g allows for rapid JSF application
  development. JHeadstarts adds the highway
  (railway) to a jumpstart, especially when
  creating CRUD applications.
• Both can easily be enhanced by Java programmers
• Give it a try (all software can be downloaded
  from OTN)

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QA
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Thanks for your attention!

• See http//technology.amis.nl/blog for
  resources, more
  demonstrations, examples and
  presentation material
• Email lucas.jellema_at_amis.nl