JSF access html element value in bean class

Question

I have a JSF application in which I have a combo box.

Answer 1

Because Process Events happens before Update Model Values you can retrieve the value from the component, from the UIViewRoot like this:

HtmlSelectOneMenu collectorTypeSelectMenu = (HtmlSelectOneMenu) FacesContext.getCurrentInstance().getViewRoot().findComponent("editForm:collectorType");
String collectorType = (String) collectorTypeSelectMenu.getValue();

Answer 2

try put the attributes process and partialSubmit in your ajax call with the values you need process like this:

<f:ajax event="change" 
   execute="@this" 
   render="dsTransformationRule dsCorrelationRule"
   process="@this, collectorType"
   partialSubmit="true"
   listener="#{activityDataSource.handleCollectorTypeChange}" />

In the process atrribute you can put all ids you need to process with the updated values (like you see in the screen.