jsf validate two fields in one time

can I validate two interdependent fields in with one validator?

     <h:form>
            <h:inputText value="#{logRegBean.person.name}" >
                <f:validator validatorId="loginCorrectValidator" />
            </h:inputText>
            <h:inputSecret value="#{logRegBean.person.password}" />
            <h:commandButton action="#{logRegBean.login}" />
        </h:form>

I want to search for the user in the DB and if there is the user, I'll test if the passwords(in db and inputted) match. But how can I access even the password field in one validator? I tried to evaluate the value int the other field via createValueExpression(), but it looks like I can't access the value in that time since I always get empty strings.