Apache Struts 2 Documentation > Home > Guides > Core Developers Guide > Validation > expression validator
Added by tm_jee, last edited by Ted Husted on Sep 03, 2006  (view change)

Description

Content pulled from external source. Click here to refresh.

A Non-Field Level validator that validates based on regular expression supplied.

Parameters

Content pulled from external source. Click here to refresh.

  • expression - the Ognl expression to be evaluated against the stack (Must evaluate to a Boolean)

Examples

Content pulled from external source. Click here to refresh.
<validators>
      <validator type="expression">
         <param name="expression"> .... </param>
         <message>Failed to meet Ognl Expression  .... </message>
      </validator>
</validators>