how to set custom message for specific field

Question

Hi using JSF 1 (not JSF 2).

<h:inputText id="myElem"
         value="#{backingBean.myElem}"
         required="true"/>
<h:message id="myElemMsg" styleClass="errorMsg" for="myElem"/>

<h:inputText id="myElem2"
         value="#{backingBean.myElem2}"
         required="true"/>
<h:message id="myElem2Msg" styleClass="errorMsg" for="myElem2"/>

My message properties is:

javax.faces.component.UIInput.REQUIRED=A value is required.

Now the I get A value is required whenever anything is missing, however i want a custom message for myElem2 to say something else.

Answer 1

I understand that you're using JSF 1.0/1.1. You've then basically 2 options:

1. Create a custom validator.

   <h:inputText id="myElem2" 
       value="#{backingBean.myElem2}"
       validator="customRequiredValidator" />
   

   Wherein you just throw a ValidatorException with therein the desired message.

   if (isEmpty(value)) {
       throw new ValidatorException(new FacesMessage("Your message here"));
   }
   

2. Or, simply upgrade to JSF 1.2. It introduces the requiredMessage attribute.

   <h:inputText id="myElem2" 
       value="#{backingBean.myElem2}"
       required="true" requiredMessage="Your message here" />