| Meme Name: | Java Server Faces |
| Category: | interfaces | |
| Related Concepts: | |
| Related Links: |
Sun JSF tutorial
Sun JSF homepage
JSFCentral resource site
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| Core Concept |
| A web application framework. MVC based: pages are declarative, with all logic removed. Aim is to provide a Swing-type toolkit for web applications. |
| goals |
| Simpler, easier development |
| simplify |
| By providing abstractions such as error handling, session management and reusable components. |
| methodology |
| Author JSP pages, using JSF components that encapsulate HTML elements.
Write a JavaBean as the state holder of user-input and component data.
Write event listeners: e.g. action on button click or form submit.
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| standardise |
| A standard for tool-makers, component writers and application writers. |
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| constituents |
| Framework consists of a tag library of prefabricated renderable components and a set of APIs. |
| components |
| UI components,
Renderers,
Validation and Conversion,
Component Tree (in memory DOM-type model of interface)
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| APIs |
| APIs for: representing UI components and managing state, handling events and input validation, defining page navigation, internationalization and accessibility. |
| events |
| JSF supports two events types: ActionEvent (fired when a form is submited or button clicked) and ValueChangedEvent (fired if a JSF component value changes) |
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| lifecycle |
| Reconstitute Component Tree -
Apply Request Values -
Process Validations -
Update Model Values -
Invoke Application -
Render Respons |
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