Basic Customization > User Interface Customization > Presenting Information in the UI > UI Validation > Solutions > Procedure – Pre-Validation > Implementing Validators for Pre-Validation > Creating a Validator
  
Creating a Validator
Creating a validator class should be fairly simple. All you need to do is create a class that extends com.ptc.core.ui.validation.DefaultUIComponentValidator.
The class below represents a skeleton for a simple validator class.
package com.ptc.windchill.enterprise.myPackage.validators;

import com.ptc.core.ui.validation.DefaultUIComponentValidator;

public class MyValidator extends DefaultUIComponentValidator{
//override one or more validation methods from
DefaultUIComponentValidator
}