private function addPortOperations()
    {
        $methods = $this->getClassMethods();

        foreach ($methods as $method) {
            $data = $this->getMethodIO($method->name);

            $input         = false;
            $output        = false;
            $bindingInput  = false;
            $bindingOutput = false;

            if (array_key_exists("params", $data)) {
                $input = $this->targetNsPrefix.":".$method->name.$this->requestSuffix;
            }

            if (array_key_exists("return", $data)) {
                $output = $this->targetNsPrefix.":".$method->name.$this->responseSuffix;
            }

            $this->wsdl->addPortOperation($this->portType,
                                          $method->name,
                                          $input,
                                          $output);
        }
    }