How do I use the feature onUpdate="cascade" with Torque?

[Tomasz Dre�ler]

Hi!
I have the tables 'server' and 'file'.
How can I update the 'server.serveradress' (PK) and 'file.serverAdress' 
(FK) with Torque?
The attribute 'file.serverAdress' have the flag onUpdate="cascade".

I try folowing:
   Criteria crit = new Criteria();
   crit.add(ServerPeer.SERVERADRESS, "oldServerAdress");
   List v = ServerPeer.doSelect(crit)
   Iterator iteratorServer = v.iterator();
   Server server;
   if(iteratorServer.hasNext()){
           server = (Server) iteratorServer.next();
   }
   server.setServeradress("newServerAdress");

   ServerPeer.doUpdate(server);    // don't work
   server.save();                             // don't work, too
Thanks for your attention

Greetings 
Tomek

[------------------------- schema.xml 
--------------------------------------]
<table name="server" description="Server Tabelle" idMethod="none">
  <column name="serverAdress" primaryKey="true"
      required="true" type="VARCHAR" size="255"
      description="Server Adresse"  />
  <column name="serverName"
    required="true" type="VARCHAR"
    size="128" description="Server Name" />
</table>

<table name="file" description="File Tabelle" idMethod="native">
  <column name="fileId" required="true" primaryKey="true"
    type="INTEGER" autoIncrement="true"
    description="File ID" />
  <column name="serverAdress" required="true"
    type="VARCHAR" size="255"
    description="FK Server Adresse" />
  <column name="filePath" required="true"
    type="LONGVARCHAR"
    description="File Pfad" />
   <column name="fileName" required="true"
    type="VARCHAR" size="255"
    description="File Name" />
  <foreign-key foreignTable="server" onUpdate="cascade">
      <reference local="serverAdress" foreign="serverAdress"/>
  </foreign-key>
</table>


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