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JSF and Seam

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    JSF and Seam - Presentation Transcript

    1.  
    2. Java Server Faces adopting the standard Roi Aldaag Consultant, AlphaCSP
    3. Agenda
      • Introduction
      • Architecture
      • Configuration
      • Features
      • Pros & Cons
    4. Introduction
      • Not so long ago, if you “Googled“
      • the word JSF , you probably would
      • have come across …
    5. Introduction The F-35 J oint S trike F ighter (JSF) …
    6. Introduction
      • Today you’d find…
      JavaServer Faces Technology
    7. Introduction :: What is JSF?
      • What is JSF ?
        • Specification
        • UI framework
        • Component based
        • Server side
        • Java web applications
    8. Introduction :: Motivation
      • 9 Billion Reasons for JSF…
    9. Introduction :: Motivation
      • JCP Standard
        • JSF 1.0/1.1 JSR 127 May 2005
          • JSF 1.2 JSR 252 May 2006
          • JSF 2.0 JSR 314 Q4 2008 ?
          • / JEE6
    10. Introduction :: Motivation
      • Vendor adoption
        • JSF RI
        • MyFaces
    11. Introduction :: Motivation
      • Popularity
        • Commercial Projects
        • Open Source Projects
        • Market
        • Documentation
    12. Introduction :: Motivation
      • IDE integration
        • Visual tool support
        • Drag & Drop
        • Auto-complete
    13. Introduction :: Motivation
      • Tools
        • Component Libraries
          • IceFaces
          • RichFaces
          • ADF / Trinidad
          • Tomahawk
        • Extensions
          • Facelets
          • Ajax4Jsf
          • DinoFaces
    14. Introduction :: Motivation
      • View Technology
        • JSP / Servlet
        • Other template engines
          • Facelets
          • JSFTemplating
        • Multiple rendering output from same pages
    15. Introduction :: What is Seam?
      • What is Seam ?
        • A lightweight framework for JEE5
        • Unifies JSF and EJB models (Web Beans / JSR 299)
        • Integrates JSF, POJOs, JPA, jBMP, Drools
        • Annotation / EL based
        • Extends JSF
        • JBoss OS (LGPL)
        • Release at 2006
        • Current version 2.0.2 SP1
    16. Introduction :: What is Seam?
      • Misconceptions
        • Can be used without EJB3
        • Does not need a container
        • Has a small footprint
        • Easy integration
    17. Introduction :: Why JSF+Seam?
      • Why JSF + Seam?
        • JSF has some weaknesses…
        • Seam extends and enhances JSF
          • Reduces boilerplate code
          • Annotations
          • RESTful URLs
          • JSF Lifecycle
          • Contextual state management
          • Ajax Remoting
          • Exception Handling
        • Simple Integration
          • EJB3 / jBMP/ Drools / Spring
    18. Introduction :: Seam in action
    19. Agenda
      • Introduction
      • Architecture
      • Configuration
      • Features
      • Pros & Cons
    20. Architecture :: JSF MVC
      • Model
      • View
      • Controller
    21. Architecture :: JSF MVC
      • Model
      • POJO’s
    22. Architecture :: JSF MVC
      • Controller
      • Front Servlet
      • Configuration
      • Event Listeners
    23. Architecture :: JSF MVC
      • View
      • Component Tree
      • Component Model
      • Delegates
      • Resources
    24. Architecture :: Component Tree ... <f:view> <h:form> <h:panelGrid columns = &quot;2&quot;> <h:inputText/> <h:inputSecret/> </panelGrid> </h:form> </f:view> .. HTML JSP WML XML Markup
        • Component Tree
      JSF tags
    25. Architecture :: JSF Lifecycle
      • JSF Lifecycle
      • Restore view
      • Apply request values
      • Process validations
      • Update model values
      • Invoke application
      • Render response
    26. Architecture :: Seam Lifecycle
      • Seam Lifecycle
      • Restore view
      • Restore Conversation
      • Apply Page Parameters
      • Apply request values
      • Process validations
      • Update model values
      • Invoke application
      • Process Selection
      • Store Conversation
      • Render response
    27. Architecture :: Seam Concepts
      • Seam Concepts
      • Three Tier
      • POJOs and annotations
      • IoC and bijection
      • Contextual state management
      • Interceptors
    28. Agenda
      • Introduction
      • Architecture
      • Configuration
      • Features
      • Pros & Cons
    29. Configuration :: JSF
      • faces-config.xml
    30. Configuration :: Seam
      • faces-config.xml
    31. Configuration :: JSF
      • web.xml
    32. Configuration :: Seam
      • web.xml
    33. Agenda
      • Introduction
      • Architecture
      • Configuration
      • Features
      • Pros & Cons
    34. Features :: Demo JSF Project LoginBean.java MasterDetailBean.java jsfLogin.jsp jsfMasterDetail.jsp faces-config.xml web.xml XML XML JSP JSP
    35. Features :: Demo Seam Project LoginBean.java MasterDetailBean.java jsfLogin.jsp jsfMasterDetail.jsp faces-config.xml web.xml XML XML JSP JSP seam.properties jboss-seam.jar jboss-seam-ui.jar components.xml
    36. Features :: Demo Login page jsfLogin.jsp UIViewRoot UIPanel UIOutput UIPanel UIInput UIForm UIOutput UIInput UICommand UIPanel
    37. Features :: JSF Value Binding LoginBean.java jsfLogin.jsp faces-config.xml Unified EL Managed Bean
    38. Features :: JSF Method Binding LoginBean.java jsfLogin.jsp Invoke Application Phase
    39. Features :: JSF State Management jsfLogin.jsp jsfMasterDetail.jsp User Dependency Injection
    40. Features :: Seam State Management
      • Contextual state management
        • Bijection
          • @In - Injection
          • @Out – Outjection
          • Dynamic, contextual, bidirectional
        • Context Scope
          • Event < Page < Conversation < Business Process < Session < Application
        • Conversation
          • Temporary conversation
          • Long-running conversation
          • ConversationId
    41. Features :: Seam State Management MasterDetailBean.java
    42. Features :: JSF Page Flow LoginBean.java jsfLogin.jsp jsfMasterDetail.jsp faces-config.xml
    43. Features :: Seam Page Flow
      • Page Actions
        • HTTP GET
        • Bookmarking
        • RESTful URLs
      HTTP POST HTTP GET
    44. Features :: Seam Page Flow
      • Page Flow
        • JBoss Business Process Management (jBPM)
        • Used to define process workflow / page flow
        • Define transition between pages
        • Define navigation rules for each page
        • Flow is based on events and conditions
      • Back button
        • In conversation mode, back button is disallowed
        • Undefined transition
        • Seam blocks actions from “stale” pages
        • Redirects to relevant page
    45. Features :: JSF Validations MasterDetailBean.java jsfMasterDetail.jsp
    46. Features :: Seam Validations jsfMasterDetail.jsp MasterDetailBean.java @org.hibernate.validator.Email
    47. Features :: JSF Error Handling javax.servlet.ServletException: javax/servlet/jsp/tagext/JspIdConsumer
    48. Features :: Seam Error Handling
    49. Features :: Seam Error Handling
      • Exception Annotations
    50. Features :: Demo MasterDetail page jsfMasterDetail.jsp MasterDetailBean.java
    51. Features :: Demo MasterDetail page jsfMasterDetail.jsp - continued HtmlDataTable HtmlColumn HtmlColumn HtmlOutputText HtmlOutputText
    52. Features :: JSF Ajax
      • Ajax: Page Wide
        • Page wide support (region, zone) ‏
        • Add support to existing components
        • Sub view processing
        • Partial tree rendering
        • Normal lifecycle
        • Partial page refresh
        • Example:
          • Ajax4Jsf, Dynamic Faces
    53. Features :: JSF Ajax
      • Ajax: Component Wide
        • Ajaxified components
        • Client validations
        • Client component interaction
        • Custom lifecycle
        • Example:
          • RichFaces, IceFaces, ADF (Trinidad) ‏
    54. Features :: Seam Ajax
      • Ajax Remoting
        • Similar to DWR
        • Access seam components from JS
        • JavaScript APIs
          • Seam.Component
          • Seam.Remote
        • Expose server side components
          • @WebRemote
        • Compatible with Ajax4Jsf
        • Dojo / GWT integration
    55. Features :: Documentation
      • JSF
        • Specification
        • Forums
        • Books
      • Seam
        • Reference
        • Forums
        • Books
    56. Agenda
      • Introduction
      • Architecture
      • Configuration
      • Features
      • Pros & Cons
    57. Pros & Cons
      • Seam Sweet spots
        • Seam Gen (RoR)
        • Security (Role / Rule based)
        • Spring Integration
        • Integrated testing FW (TestNG)
    58. Pros & Cons
      • JSF Shortcomings
        • Too much wiring
        • HTTP GET / REST is hard
        • Complicated Lifecycle
        • Slow learning curve
        • Writing new components
        • Poor exception handling
    59. References
      • JSF
        • http://www.jcp.org/en/jsr/detail?id=252
        • http://jcp.org/en/jsr/detail?id=314
        • http://myfaces.apache.org/
      • Seam
        • http://www.jboss.com/products/seam
        • http://www.seamframework.org/
      • Thank
      • You !

    + yuvalbyuvalb, 2 years ago

    custom

    3298 views, 8 favs, 1 embeds more stats

    JSF & Seam by Roi Aldag from AlphaCSP
    www.alphacsp. more

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