Apple WebObjects 5 - Manual (Page 39)

C H A P T E R 4
HTML-Based Applications
A Programmer’s View of WebObjects 39
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Apple Computer, Inc. January 2002
Figure 4-1 The files of a WebObjects component
Dynamic Elements
The template file in Figure 4-1 looks like any other HTML file except for the element
with the
tag. In this example, this tag represents a dynamic element.
Dynamic elements are the basic building blocks of a WebObjects HTML application.
They link an application’s behavior with the HTML page shown in the Web
browser, and their contents are defined at runtime. A dynamic element appears in
the template as a
tag with a corresponding closing tag.
Greeting
Hello !
import com.webobjects.appserver.*;
public class Greeting extends WOComponent {
protected String userName;
public Greeting(WOContext context) {
super(context);
}
public String userName() {
return userName;
}
public void setUserName(String newUserName) {
userName = newUserName;
}
}
String1 : WOString {
value = userName;
}
Component (Greeting.wo)
Template (Greeting.html)
Code (Greeting.java)
Bindings (Greeting.wod)