Validators

MatcherValidator is an extension to mx.validators.Validator that allows any matcher to be used to validate a value.

  <MatcherValidator 
    source="{ titleTextInput }"
    property="text"
    errorCode="error.title.leadingwhitespace"
    errorMessage="Must contain the word 'the' and not start with space or tabs.">
    <AllOf>
      <Not>
          <EmptyString />
      </Not>
      <ContainsString string="the" />
      <MatchesPattern expression="^\s+" />
    </AllOf>
  </MatcherValidator>