Hi There is maybe something I missed, but I thought that  should be controlled  by an submit action on a form. In my case, the validation is fired on an every ajax request,  long before a user has completed a form.  Take a look on this example :

     <h:form >
                <rich:tabPanel switchType="ajax" id="orderlisteTab"  >
                    <rich:tab label="#{txt.tab_search}" id="tab1" >
                                    <fieldset>
                                        <rich:message for="fodselsnr" showSummary="true" showDetail="false" />
                                        <div>
                                            <label for="fodselsnr">#{txt.lblBirthnumberWithExplanation}</label>
                                            <h:inputText id="fodselsnr" value="#{pointing to a field in a bean with JSR 303 validation...}" >
                                                <rich:beanValidator />
                                            </h:inputText>
                                        </div>
                                    </fieldset>
                                    ...
                                  <div >
                                    <a4j:commandButton actionListener="#{...}"  />
                                  </div>
                    </rich:tab>
                   
                    <rich:tab label="#{txt.tab_search_advanced}" id="tab2" >
                        ...
                    </rich:tab>                   
           </h:form>

BeanValidation concern only one value which is pointing to a bean with a field with validation like this :

@NotEmpty

@Length(min=11,max=11)

@Pattern(regexp="\\d{11}")

When I try to change tab and go to tab2, with empty "fodselsnr", validation executes which give me a error and stop me to perform this action.

What I want, is to execute a validation when   is executed, not before.

How to get this behavior ?