This is comparable with a request scope. For exampe a page with a backing bean 
that can submit data, the backing bean can give feedback, but the data is not 
saved after that.

Example:


  | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
  |                       
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
  | <html xmlns="http://www.w3.org/1999/xhtml";
  |     xmlns:s="http://jboss.com/products/seam/taglib";
  |     xmlns:ui="http://java.sun.com/jsf/facelets";
  |     xmlns:f="http://java.sun.com/jsf/core";
  |     xmlns:h="http://java.sun.com/jsf/html";
  |     xmlns:c="http://java.sun.com/jstl/core";>
  | <body>
  | <ui:define name="body">
  |     <h:form id="frm_Hello">
  |     Please fill in your name: <h:inputText id="txt_Name"
  |                     value="#{hello.name}" />
  |             <h:commandButton id="btn_sayHello" value="Say Hello!"
  |                     action="#{hello.sayHello}" />
  |             <br/>
  |             <h:outputText id="greeting" value="Hello #{hello.name}"
  |                     rendered="#{not empty hello.name}" />
  |     </h:form>
  | </ui:define>
  | </body>
  | </html>
  | 


  | package seamdemo.hello.backingbeans;
  | 
  | import javax.ejb.Remove;
  | import javax.ejb.Stateful;
  | 
  | import org.jboss.seam.ScopeType;
  | import org.jboss.seam.annotations.Destroy;
  | import org.jboss.seam.annotations.Name;
  | import org.jboss.seam.annotations.Scope;
  | 
  | @Stateful
  | @Scope(ScopeType.EVENT)
  | @Name("hello")
  | public class HelloBean implements Hello {
  |     private String name;
  |     
  |     public String getName() {
  |             return name;
  |     }
  | 
  |     public String sayHello() {
  |             return "";
  |     }
  | 
  |     public void setName(String name) {
  |             this.name = name;
  |     }
  | 
  |     @Remove @Destroy
  |     public void destory() {
  |     }
  | }
  | 

After showing the entered name, the name is not saved. So if you reload the 
page, the textfield is empty again.

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