Question

I feel a little dumb: I am using Primefaces on Tomcat 7 and would like to use those fancy new EL expressions to reduce some code clutter. I figured out how to do this in datatables but I can’t get it to work otuside recurring structures which have those handy var attributes. How would I declare the EL parameter for grantRole(String) to be the value of the inputText?

<h:panelGrid columns="3">
    <h:outputText value="Name" />
    <p:inputText/>
    <p:commandButton value="Add" update="associatedPlayers" 
       action="#{permissionRoleDetailBean.grantRole(associatePlayerName)}" />
</h:panelGrid>

Answer 1

You could do so:

<h:panelGrid columns="3">
    <h:outputText value="Name" />
    <p:inputText binding="#{playerName}" />
    <p:commandButton value="Add" update="associatedPlayers" 
       action="#{permissionRoleDetailBean.grantRole(playerName.value)}" />
</h:panelGrid>

However, this makes no sense. The normal approach is the following:

<h:panelGrid columns="3">
    <h:outputText value="Name" />
    <p:inputText value="#{permissionRoleDetailBean.playerName}" />
    <p:commandButton value="Add" update="associatedPlayers" 
       action="#{permissionRoleDetailBean.grantRole}" />
</h:panelGrid>

with

private String playerName; // +getter+setter

public void grantRole() {
    System.out.println(playerName); // Look, it's already set by JSF.
}