code: public static RequestParameter matches(final String name, final String value)
     {
        return new RequestParameter(name, value) {
           @Override
           public String toString()
           {
              return "RequestParameter.matches(\"" + name + "\", \"" + value + "\")";
           }
        };
     }
docs: Create a {@link Condition} that matches against both request parameter names and values.
  <p>
  Parameter name and value expressions may be parameterized:
  <p>
  <code>
  RequestParameter.matches("username", "guest")<br/>
  RequestParameter.matches("username", "{name}")<br/>
  RequestParameter.matches("{anything}", "{value}")<br/>
  </code>
  
  @param name {@link ParameterizedPattern} matching the request parameter name.
  @param value {@link ParameterizedPattern} matching the request parameter value.
  
  @see ConfigurationRuleParameterBuilder#where(String) {@link HttpServletRequest#getParameterMap()}