How to use Visit Methods in OTK Java?

Hello!

In Java OTK it is possible to use Visit Methods (Creo 7 JavaUser’s Guide page 52).

I'm don't understand how to implement interface com.ptc.wfc.wfcClient.VisitingClient to past it to one of Visit Methods.

Anybody has experiences with this? Can you provide shot sample of code?

My NOT working code

class VC implements com.ptc.wfc.wfcClient.VisitingClient
{
 @Override
 public Status ApplyAction (com.ptc.pfc.pfcObject.Object pfcobject, Status filter_status) throws jxthrowable
 {
 int i = 0;
 return Status.TK_NO_ERROR;
 }
 
 @Override
 public Status ApplyFilter (com.ptc.pfc.pfcObject.Object pfcobject) throws jxthrowable
 {
 return Status.TK_NO_ERROR; 
 }
}
class SaveButtontListener extends DefaultUICommandActionListener
 {
 public Session session;
 
 public SaveButtontListener (Session currentSession)
 {
	session = currentSession;
 }
	
 public void toAssy()
 {
	try 
	{
 Model model = session.GetCurrentModel();
 WModel wmodel = (WModel) model; 
 VisitingClient vc = new VC(); 
 Status err = wmodel.VisitItems(vc, ModelItemType.ITEM_FEATURE);
}
.........