Wicket Presentation

8/8/2019 Wicket Presentation

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Apache WicketApache Wicket


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IntroductionIntroduction A lightweight component-based web

application framework for the Java

programming language. Make developing web-apps simple and

enjoyable with proper mark-up/logicseparation, a POJO data model and arefreshing lack of XML(configuration).

Powerful, reusable components written withplain Java and HTML.


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HistoryHistory Originally written by Jonathan Locke in Spring

of 2005.

Version 1.0 was released in June 2005.

An Apache top-level project in June 2007.

Current version is 1.4.5.


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Current StatusCurrent Status A comprehensive, mature product being used by

startups, mid-size companies and large

companies (IBM, Amazon, Tom-Tom, Nikon,VeriSign and others).

Core team is active and global: 16 active corecommitters, 3 retired core developers and 50additional contributors. The community is veryactive and helpful.

Two books in circulation and a third to bepublished.


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Feature ListFeature List Swing-like OO Component Model

Pages and Components in Wicket are real Java

objects that support encapsulation, inheritanceand events.

Ease of Development

Use everything about Java and HTML.

Separation ofConcerns

Does not mix mark-up with Java code. Theworld of HTML and Java are parallel, so UIdesigners and Java codes can workindependently.


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Feature List (contd)Feature List (contd) Secure

Secure by default. URLs do not expose

sensitive info and all component paths aresession-relative.

Transparent, Scalable Clustering Support

All Wicket applications will work on cluster

automatically. Provide an effective frameworkto easily scale up new and existingapplications.

Transparent Back Button Support

Supports configurable page version mgmt.


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Feature List (contd)Feature List (contd) Reusable Components and Units

Extend existing components with the Java

extends keyword. Simple, Flexible, LocalizationForm

Validation

Typesafe Sessions

Eliminate the need to manage HttpSessionattributes by hand.

Detachable Models

Model objects can be very light weighted interms of memory and network use.


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Feature List (contd)Feature List (contd) Border Components

Useful for inheritance of common navigational

structures or layouts. Programmatic Manipulation ofHTML Tag

Attributes

Automatic Conversions

Once a Form validates, the model can beupdated using Wicket converters.

Tree Components

Out of box tree components for navigating andselecting nodes.


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Pros of WicketPros of Wicket Get the benefits of a first class component

model and a non-intrusive approach to HTML. A

significant development advantage. Most other web frameworks provide non-

existent support in managing server-side state.

Designed to work with POJO persistentframework such as JDO or Hibernate. Makedatabase driven web applications easy to write.

Most other frameworks require special HTMLcode. JSP is by far the worst offender allowingJava code directly in web pages.


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Pros of Wicket (contd)Pros of Wicket (contd) Ajax (Dojo and Script.aculo.us) in Wicket is

incredibly easy.

Great for Java developers.


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Cons of WicketCons of Wicket Virtually unknown.

Steep learning curve.

Not well documented.


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Pros and Cons of SpringPros and Cons of Spring

MVCMVCPros

Lifecycle for overriding binding, validation, etc.

Integrate with many view options seamlessly. Inversion of Control makes it easy to test.

Cons

Configurations intensive lots of XML.

Almost too flexible.

Bare bones: just a MVC framework. No librariesfor Ajax. Have to build infrastructure for Ajax,redirect after post, popups by yourself.


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Pros and Cons of Struts 2Pros and Cons of Struts 2Pros

Simple architecture easy to extend.

Controller-based or page-based navigation. Ajax support: Dojo built-in. Plug-in for GWT,

JSON.

Cons

Struts 1 is still in high-demand and widely used.Struts 2 is gaining ground.

Documentation is poorly organized. Googleresults in struts 1.x documentation.


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Questions?Questions?

Documents

Wicket Presentation