Whatever I do, I can't make sense of the listener attribute of the f:ajax tag. The method won't get invoked. I don't get any error messages. Here's an example:
test.xhtml
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html">
<h:head>
<title>
Example
</title>
</h:head>
<h:body>
<h:form>
<h:selectOneMenu value="#{testBean.value}">
<f:selectItem itemLabel="1" itemValue="1" />
<f:selectItem itemLabel="2" itemValue="2" />
<f:ajax render="messages" listener="#{testBean.processAjaxBehaviour}" onevent="test" />
</h:selectOneMenu>
<h:messages id="messages" />
</h:form>
<script type="text/javascript">
function test(event)
{
alert(event.status);
}
</script>
</h:body>
</html>
TestBean.java
package test;
import java.io.Serializable;
import javax.annotation.PostConstruct;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.event.AjaxBehaviorEvent;
import javax.faces.event.AbortProcessingException;
@ManagedBean
@ViewScoped
public class TestBean implements Serializable
{
int value = 2;
public int getValue()
{
return value;
}
public void setValue(int value)
{
value = value;
}
@PostConstruct
public void init()
{
System.out.println("Done constructing testBean.");
}
public void processAjaxBehaviour(AjaxBehaviorEvent event) throws AbortProcessingException
{
System.out.println("Processing AJAX behaviour.");
}
}
The function test
is called three times, as expected, and I get the status "success". The listener processAjaxBehaviour
isn't called however.
The init
method is called. The second option
element rendered by the f:selectItem
gets selected as expected.