未在bean中设置h：inputText值

Question

The <h:inputText> value is not been set in a request scoped bean. If the value is preserved from DB, it works fine.

view:

<h:inputText id="receipient" size="90" styleClass="text" readonly="#{!bean.enable}" value="#{bean.recipient}" />

bean:

public class Bean {
    private String recipient;
    Bean(){
        recipient = //load from db
    }
    //set 
    //get
}

What is the problem and how can I solve this?

Answer 1

Ensure that readonly="#{!bean.enable}" evaluates the same as it was in initial view. If it evaluates true during apply request values phase of the form submit, then the component's value won't be processed (because it is marked as read only).

An easy test is to put the bean in session scope. If that fixes it, then you know the culprit. If you're using JSF 2.0, just put bean in view scope by using @ViewScoped instead of @RequestScoped . If you're still on JSF 1.x, use Tomahawk's <t:saveState> component to let the bean act like the JSF 2.0 view scoped one.

<t:saveState value="#{bean}" />