<configure
    xmlns="http://namespaces.zope.org/zope"
    i18n_domain="z3c.form">

  <!-- Validators -->
  <adapter
      factory=".validator.SimpleFieldValidator"
      />
  <adapter
      factory=".validator.FileUploadValidator"
      />
  <adapter
      factory=".validator.InvariantsValidator"
      />

</configure>
