title: Expression to validate Password in Oracle ADF using af:validateRegExp
body: <p>I would like to validate a inputtext for password validation:</p>
  
  <p>Atleast one number
  Atleast one special character
  Atleast one uppercase letter 
  Minimum 8 characters </p>
  
  <p>Does anyone know how I can declare a string with the expression for the above. Thanks.</p>