Get the validation message for a specific component

Answer 1

The problem you will have with what you're planning is that a single component can have more than one message queued. What are you going to do then? For demonstration purposes, you can use

EDIT : You should just move the logic into your backing bean:

1. Implement a method that'll pull the detail from an available FacesMessage list, given a clientId

   public String getComponentMessageDetail(String clientId) {
       String detail = null;
       FacesContext ctxt = FacesContext.getCurrentInstance();
       List componentMessages = ctxt.getMessages(clientId);
   
       if (componentMessages != null && componentMessages.isEmpty() == false) {
           //returns the detail, from only the first message!
           detail = componentMessages.get(0).getDetail();
       }
   
       return detail;
   }
   

2. Use the utility method in your view