Struts2:Conditional visitor validator not conditional

[Kev Adams]

I'm having a little trouble with the "conditionalvisitor" validator in Struts2. The "conditionalvisitor" validator is supposed to redirect the validation to the model, based on a condition. In my case, it is performing both sets of validation. This is causing false validation errors in my form.

My form has two radio buttons like so:

<s:radio list="#{'single':'Single'}" name="divisionFrequency" onclick="enableSingle()"/>

<s:radio list="#{'multiple':'Multiple'}" name="divisionFrequency" onclick="enableMultiple()"/>

The "enableSingle()" and "enableMultiple()" call javascript functions to enable the fields of the radio button that is currently selected and disable the fields of the button that is not selected.

I'm using the ModelDriven approach and I have a single CRUD action (a la the Struts 2 In Action book). Inside that action, I have a "save" method, and my action alias looks like "CrudAction-save-validation.xml"

Here is the snippet from my CrudAction-save-validation.xml.

<field name="model">
     <field-validator type="conditionalvisitor">
          <param name="appendPrefix">false</param>
          <param name="expression">divisionFrequency == 'multiple'</param>
          <param name="context">add-multiple</param>
          <message />
     </field-validator>
     <field-validator type="conditionalvisitor">
          <param name="appendPrefix">false</param>
          <param name="expression">divisionFrequency == 'single'</param>
          <param name="context">add-single</param>
          <message />
     </field-validator>
 </field>      
 

Normally, I'd never use the "==" to compare two strings, but this is how it is described on the Struts2 site here

I'm running this on a Websphere 6.1 server.

Has anyone encountered this before, and if so, what did you do? Unfortunately, there's not a lot of information about the "conditionalvisitor" validator from Google searches.