CODEWITHSUNDEEP
javajsfjsf-2
ChuongPham
ChuongPham

Reputation: 4801

JSF 2 - Ajax Property not found

I got this error:

execute="#{localeManager.changeLocale}": Property 'changeLocale' not found on type xyz.com.i18n.LocaleManager

where LocaleManager is:

@ManagedBean
@ViewScoped
public class LocaleManager implements Serializable
{
    // other codes here

    public static void changeLocale(AjaxBehaviorEvent event) {
       newLocale = (Locale) new Locale((String) event.toString());
       FacesContext.getCurrentInstance().getExternalContext().getSessionMap().put("selectedLocale", newLocale); 
    }
}

and I'm calling the bean's method here:

<h:selectOneMenu id="selectLang" immediate="true" value="#{langListing.language}">
    <f:ajax event="change" execute="#{localeManager.changeLocale}" />
    <f:selectItems value="#{langListing.languages}" />
</h:selectOneMenu>

I'm learning AJAX by experimenting with this code. But I don't understand how Ajax evaluates bean's method. Is this a straightforward issue to resolve?

Upvotes: 2

Views: 1391

Answers (1)

BalusC
BalusC

Reputation: 1108762

As per the <f:ajax> tag documentation the execute attribute should refer to a collection of client IDs which are to be processed at the server side. This should not refer to some bean action method. The exception is coming because it's expecting a getter method which returns a collection of client IDs.

You want to use the listener attribute instead.

<f:ajax listener="#{localeManager.changeLocale}" />

Note that the default event for h:selectOneMenu is already valueChange. You can just omit it.

Upvotes: 1

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