Running the Advanced Contexts and Dependency Injection Examples - The Java EE 6 Tutorial: Advanced Topics - page 289

} catch (Exception e) {
throw new EJBException(e.getMessage());
}
}
}
The producerfields Facelets Pages and Managed Bean
The producerfields example has two Facelets pages, index.xhtml and todol-
ist.xhtml . The simple form on the index.xhtml page asks the user only for the
task. When the user clicks the Submit button, the listBean.createTask method is
called. When the user clicks the Show Items button, the action specifies that the todol-
ist.xhtml file should be displayed:
Click here to view code image
<h:body>
<h2>To Do List</h2>
<p>Type a task to be completed.</p>
<h:form id="todolist">
<p><h:outputLabel value="Type a string: "
for="inputString"/>
<h:inputText id="inputString"
value="#{listBean.inputString}"/></p>
<p><h:commandButton value="Submit"
action="#{listBean.createTask()}"/></p>
<p><h:commandButton value="Show Items"
action="todolist"/></p>
</h:form>
...
</h:body>
The managed bean, web.ListBean , injects the ejb.RequestBean session bean. It
declares the entity.ToDo entity and a list of the entity, along with the input string that
it passes to the session bean. The inputString is annotated with the @NotNull Bean
Validation constraint, so an attempt to submit an empty string results in an error.
Click here to view code image
@Named
@ConversationScoped
public class ListBean implements Serializable {
...
@EJB
private RequestBean request;