class ServiceFacadeImpl {
  public void createPortalAccount(Contact contact) {
    // here the contact is implicitly saved
    this.portalService.createPortalAccount(contact);
  }
}

class ServiceFacadeImpl {
  public void createPortalAccount(Contact contact) {
    // here contact is implicitly modified
    this.portalService.createPortalAccount(contact);
    this.contactDAO.save(contact);
  }
}

class ServiceFacadeImpl {
  public void CreatePortalAccountAndSaveContact(Contact contact) {
    try
    {
      contact.portalAccount = this.portalService.createPortalAccount(contact);
      this.contactDAO.save(contact);
    }
    catch(...)
    {
      // do cleanup, for example do you need to delete account from remote
      // portal if it couldn't be saved locally?
      // If yes, delete it from portal and set contact.portalAccount = null;
    }
  }
}