/** Saves neighbors. */
 public void save() {
   xmlNeighbors.save();
 }
 /**
  * Gets the neighbor entities.
  *
  * @return neighbor entities
  */
 public IEntities<?> getEntities() {
   return xmlNeighbors.getEntities();
 }
 /** Loads neighbors. */
 public void load() {
   xmlNeighbors.load();
 }
 /**
  * Gets the persistent model.
  *
  * @return persistent model
  */
 public IPersistentModel getPersistentModel() {
   return xmlNeighbors.getPersistentModel();
 }