diff --git a/ServiceDefinition/Dumper/DumperInterface.php b/ServiceDefinition/Dumper/DumperInterface.php
index 4ae8701..f957435 100644
--- a/ServiceDefinition/Dumper/DumperInterface.php
+++ b/ServiceDefinition/Dumper/DumperInterface.php
@@ -14,5 +14,5 @@ use Bundle\WebServiceBundle\ServiceDefinition\ServiceDefinition;
 
 interface DumperInterface
 {
-    function dumpServiceDefinition(ServiceDefinition $definition);
+    function dumpServiceDefinition(ServiceDefinition $definition, array $options = array());
 }
\ No newline at end of file
diff --git a/ServiceDefinition/Dumper/FileDumper.php b/ServiceDefinition/Dumper/FileDumper.php
deleted file mode 100644
index 577e8c6..0000000
--- a/ServiceDefinition/Dumper/FileDumper.php
+++ /dev/null
@@ -1,30 +0,0 @@
-<?php
-/*
- * This file is part of the WebServiceBundle.
- *
- * (c) Christian Kerl <christian-kerl@web.de>
- *
- * This source file is subject to the MIT license that is bundled
- * with this source code in the file LICENSE.
- */
-
-namespace Bundle\WebServiceBundle\ServiceDefinition\Dumper;
-
-use Bundle\WebServiceBundle\ServiceDefinition\Dumper\DumperInterface;
-use Bundle\WebServiceBundle\Util\Assert;
-
-/**
- *
- * @author Christian Kerl <christian-kerl@web.de>
- */
-abstract class FileDumper implements DumperInterface
-{
-    protected $file;
-
-    public function __construct($file)
-    {
-        Assert::thatArgumentNotNull('file', $file);
-
-        $this->file = $file;
-    }
-}
diff --git a/ServiceDefinition/Dumper/WsdlFileDumper.php b/ServiceDefinition/Dumper/WsdlDumper.php
similarity index 96%
rename from ServiceDefinition/Dumper/WsdlFileDumper.php
rename to ServiceDefinition/Dumper/WsdlDumper.php
index 45746bf..3bccef6 100644
--- a/ServiceDefinition/Dumper/WsdlFileDumper.php
+++ b/ServiceDefinition/Dumper/WsdlDumper.php
@@ -22,11 +22,11 @@ use Zend\Soap\Wsdl;
  *
  * @author Christian Kerl <christian-kerl@web.de>
  */
-class WsdlFileDumper extends FileDumper
+class WsdlDumper implements DumperInterface
 {
     private $definition;
-
-    public function dumpServiceDefinition(ServiceDefinition $definition)
+    
+    public function dumpServiceDefinition(ServiceDefinition $definition, array $options = array())
     {
         Assert::thatArgumentNotNull('definition', $definition);
 
@@ -75,13 +75,11 @@ class WsdlFileDumper extends FileDumper
             $wsdl->addSoapOperation($bindingOperation, $this->getSoapOperationName($method));
         }
 
-        $wsdl->dump($this->file);
-
         $this->definition = null;
 
-        return $this->file;
+        return $wsdl->toXml();
     }
-
+    
     protected function getPortTypeName()
     {
         return $this->definition->getName() . 'PortType';