"Hello World")); } ... Wicket “Hello world” ● In HTML a link is basically a pointer to another resource that most of the time is another page. Wicket implements links with component model object. public class Person { private String name; private String surname; private String address; private String email; } //Create a person named 'John Smith' Person person = new Person("John" CompoundPropertyModel(person)); add(new Label("name")); add(new Label("surname")); add(new Label("address")); add(new Label("email")); Model CompoundPropertyModel ● This can save us a lot boilerplate code

offered by web applications is to navigate through pages using links. In HTML a link is basically a pointer to another resource that most of the time is another page. Wicket implements links with component areas/functionalities of the site. • a footer with generic informations like web master’s email, the company address, etc… • a content area which usually contains the functional part of the page. The following picture implements Serializable { private String name; private String surname; private String address; private String email; private String passportCode; private Person spouse; private

offered by web applications is to navigate through pages using links. In HTML a link is basically a pointer to another resource that most of the time is another page. Wicket implements links with component areas/functionalities of the site. • a footer with generic informations like web master’s email, the company address, etc… • a content area which usually contains the functional part of the page. The following picture implements Serializable { private String name; private String surname; private String address; private String email; private String passportCode; private Person spouse; private

offered by web applications is to navigate through pages using links. In HTML a link is basically a pointer to another resource that most of the time is another page. Wicket implements links with component areas/functionalities of the site. • a footer with generic informations like web master’s email, the company address, etc… • a content area which usually contains the functional part of the page. The following picture implements Serializable { private String name; private String surname; private String address; private String email; private String passportCode; private Person spouse; private

offered by web applications is to navigate through pages using links. In HTML a link is basically a pointer to another resource that most of the time is another page. Wicket implements links with component areas/functionalities of the site. • a footer with generic informations like web master’s email, the company address, etc… • a content area which usually contains the functional part of the page. The following picture implements Serializable { private String name; private String surname; private String address; private String email; private String passportCode; private Person spouse; private

foo, and the bob property of fred must both be non-null after the bean is constructed, or a null-pointer exception will be thrown. 3.3.4. Method Injection For most users, the majority of the beans in this.ctx = ctx; } public void sendEmail(String address, String text) { if (blackList.contains(address)) { BlackListEvent evt = new BlackListEvent(address, text); ctx.publishEvent(evt); return; } // send send email } } public class BlackListNotifier implement ApplicationListener { /** notification address */ private String notificationAddress; public void setNotificationAddress(String notificationAddress)

foo, and the bob property of fred must both be non-null after the bean is constructed, or a null-pointer exception will be thrown. 3.3.4. Method Injection For most users, the majority of the beans in this.ctx = ctx; } public void sendEmail(String address, String text) { if (blackList.contains(address)) { BlackListEvent evt = new BlackListEvent(address, text); ctx.publishEvent(evt); return; } // send send email } } public class BlackListNotifier implement ApplicationListener { /** notification address */ private String notificationAddress; public void setNotificationAddress(String notificationAddress)

foo, and the bob property of fred must both be non-null after the bean is constructed, or a null-pointer exception will be thrown. 3.3.4. Method Injection For most users, the majority of the beans in this.ctx = ctx; } public void sendEmail(String address, String text) { if (blackList.contains(address)) { BlackListEvent evt = new BlackListEvent(address, text); ctx.publishEvent(evt); return; } // send send email } } public class BlackListNotifier implement ApplicationListener { /** notification address */ private String notificationAddress; public void setNotificationAddress(String notificationAddress)

foo, and the bob property of fred must both be non-null after the bean is constructed, or a null-pointer exception will be thrown. 3.3.4. Method Injection For most users, the majority of the beans in this.ctx = ctx; } public void sendEmail(String address, String text) { if (blackList.contains(address)) { BlackListEvent evt = new BlackListEvent(address, text); ctx.publishEvent(evt); return; } // send send email } } public class BlackListNotifier implement ApplicationListener { /** notification address */ private String notificationAddress; public void setNotificationAddress(String notificationAddress)

foo, and the bob property of fred must both be non-null after the bean is constructed, or a null-pointer exception will be thrown. 3.3.4. Method Injection For most users, the majority of the beans in this.ctx = ctx; } public void sendEmail(String address, String text) { if (blackList.contains(address)) { BlackListEvent evt = new BlackListEvent(address, text); ctx.publishEvent(evt); return; } // send send email } } public class BlackListNotifier implement ApplicationListener { /** notification address */ private String notificationAddress; public void setNotificationAddress(String notificationAddress)