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Java EE 6 @javax.annotation.ManagedBean vs. @javax.inject.Named vs. @javax.faces.ManagedBean
...a ee we have many containers that manage life cycle of their objects, like JSF container, EJB container, CDI container, Servlet container, etc.
All of these containers work kind of independent, they boot in application server initialization and scan classes of all artifacts including jar, ejb-jar,...
Why JSF saves the state of UI components on server?
Now, it is no longer necessary to save state while using JSF. A high performance Stateless JSF implementation is available for use. See this blog & this question for relevant details & discussion. Also, there is an open issue to include in JSF specs, an option to provide stateless mode for JSF...
Difference between JSP EL, JSF EL and Unified EL [closed]
...tailed difference between the Expression Languages (EL).
There is JSP EL, JSF EL and Unified EL.
2 Answers
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Why JSF calls getters multiple times
...Expression#getValue().
This will normally be invoked one or two times per JSF request-response cycle, depending on whether the component is an input or output component (learn it here). However, this count can get up (much) higher when used in iterating JSF components (such as <h:dataTable> a...
Get JSF managed bean by name in any Servlet related class
...s @WebServlet, @WebFilter and @WebListener, you can grab a "plain vanilla" JSF @ManagedBean @RequestScoped by:
Bean bean = (Bean) request.getAttribute("beanName");
and @ManagedBean @SessionScoped by:
Bean bean = (Bean) request.getSession().getAttribute("beanName");
and @ManagedBean @ApplicationSco...
javax.faces.application.ViewExpiredException: View could not be restored
...ariables and multithreading.
There is also a limit on the amount of views JSF will store in the session. When the limit is hit, then the least recently used view will be expired. See also com.sun.faces.numberOfViewsInSession vs com.sun.faces.numberOfLogicalViews.
With the state saving method set t...
What components are MVC in JSF MVC framework?
In JSF MVC framework who is Model, View, and Controller?
4 Answers
4
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commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
... when you configure an ajax exception handler as per Exception handling in JSF ajax requests, nor when you set below context parameter in web.xml,
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</cont...
Performing user authentication in Java EE / JSF using j_security_check
...roach is regarding user authentication for a web application making use of JSF 2.0 (and if any components do exist) and Java EE 6 core mechanisms (login/check permissions/logouts) with user information hold in a JPA entity. The Oracle Java EE tutorial is a bit sparse on this (only handles servlets)....
How do you get the length of a list in the JSF expression language?
How would I get the length of an ArrayList using a JSF EL expression?
7 Answers
7
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