What is the specific validation error when validationError=true in an openFaces component

Question

I'm using openFaces' dateChooser and I set a pattern. If I put in it a wrong value (like: 33/33/33) and try to submit the validationError is set to true because of the wrong format but I don't know how to get the specific error message or component that caused the validation error.

Here is a part of my code:

<o:dateChooser 
    id="DateColBtnGeneralView" 
    pattern="#{configurationController.defaultDateFormat}"
    value="#{homeController.firstDate}">
    <f:convertDateTime pattern="#{configurationController.defaultDateFormat}"/>   
</o:dateChooser>

<o:commandButton
    action="#{homeController.submitDates}"
    onsuccess="contractClientDialogValidation(event)
    value="Submit" />

function contractClientDialogValidation (event) {
    if (event.validationError) {
        alert("I want to show you the right error message according to the wrong value and component");
    }
}

The validationError is set to true in case a required component is left empty or in case of an incorrect date format or in case an input number is too long or etc.

Answer 1

The validation errors are primarily related to the UpdateModelValues and InvokeApplication phases within the JSF lifecycle.

Inside your <h:form/> element you can choose to have a <h:messages id="errorMessages"/> tag.

When the ajax request/response lifecycle is complete, render the <h:messages/> tag.

See point 3 of this link