Question

Is there any way to register event listeners for components at a central point like the bean?

Is something like this possible?

@PostConstruct
public void setup() {
    FacesContext facesContext = FacesContext.getCurrentInstance();
    UIViewRoot view = facesContext.getViewRoot();
    view.getComponentByName("toolBar:save").addActionListener(com.sample.SaveListener);
    view.getComponentByName("form:save").addActionListener(com.sample.SaveListener);
}

Answer 1

Not all components are necessarily available during bean’s (post)construction. The bean will be constructed whenever EL needs to resolve #{bean} for the first time, which may be too early. Do it during the pre render view event instead.

Add the following tag to your view:

<f:event type="preRenderView" listener="#{bean.setup}" />

Then you can do the necessary job in that method:

public void setup() {
    UIViewRoot view = FacesContext.getCurrentInstance().getViewRoot();
    ((UICommand) view.findComponent("toolBar:save")).addActionListener(new com.sample.SaveListener());
    ((UICommand) view.findComponent("form:save")).addActionListener(new com.sample.SaveListener());
}