The document provides an introduction to the Apache Wicket framework. It discusses what Wicket is, its key features and architecture. Wicket allows building web applications using reusable Java components and separating presentation from logic. The document covers topics like the component model, state management, templates, and provides a basic "Hello World" example to demonstrate how components work.

1. Cost Benefit Open Source Solutions By Eyal Golan – Senior Java Consultant @ Tikal Knowledge Introduction to

2. “ Apache Wicket is a component oriented Java web application framework. With proper mark-up/logic separation , a POJO data model , and a refreshing lack of XML , Apache Wicket makes developing web-apps simple and enjoyable again. Swap the boilerplate, complex debugging and brittle code for powerful, reusable components written with plain Java and HTML.*” *The Wicket Team

12. Hello World – The Short Example add(new Label(" message ", "Hello World!")); Put it in your Java

13. Hello World – The Short Example <h1 wicket:id=“ message ”>[text goes here]</h1> add(new Label(&quot; message &quot;, &quot;Hello World!&quot;)); + Add it to your HTML Put it in your Java

14. Hello World – The Short Example <h1 wicket:id=“ message ”>[text goes here]</h1> add(new Label(&quot; message &quot;, &quot;Hello World!&quot;)); <h1>Hello World!</h1> + = Add it to your HTML Put it in your Java Et Voila

15. What about picking a date? DateTextField dateTxt = new DateTextField(&quot;dateTxt&quot;); dateTxt.add( new DatePicker()); add(dateTxt); <input wicket:id=“dateTxt”></input> You can manipulate the header by adding calls to CSS and JS files.

18. Components Tree Hierarchy

21. Component – Link Example Link link = new Link(&quot; link &quot;) { … @Override public void onClick() { setResponsePage(OrdersReportsPage.class); } }); <a href=”#” wicket:id=“ link ”>Click</a> HTML Code Java Code

22. Component – AjaxLink Example someComponent.setOutputMarkupId(true); AjaxLink link = new AjaxLink(&quot; link &quot;) { private static final long serialVersionUID = 1L; @Override public void onClick(AjaxRequestTarget target) { // Do Something target.addComponent(someComponent); target.appendJavaScript(“Effects.fade(‘foo’)”); } }); <a href=”#” wicket:id=“ link ”>Click</a> The same as regular Link Some Ajax stuff in Java

34. Q&A

35. Thank You [email_address] [email_address]