public void migrateTo(DTMManager mgr)
   {
     m_mgr = mgr;
     if(mgr instanceof DTMManagerDefault)
       m_mgrDefault=(DTMManagerDefault)mgr;     
   }
public void migrateTo ( DTMManager mgr ) { m_mgr = mgr ; if ( mgr instanceof DTMManagerDefault ) m_mgrDefault = ( DTMManagerDefault ) mgr ; }
Migrate a DTM built with an old DTMManager to a new DTMManager.
After the migration, the new DTMManager will treat the DTM as
one that is built by itself.
This is used to support DTM sharing between multiple transformations.
@param mgr the DTMManager