/**
  * Method to retrieve an object
  *
  * @param o Object to retrieve
  */
 public void retrieve(Object o) {
   checkStatus();
   pm.retrieve(o);
 }
 /**
  * Method to retrieve an object
  *
  * @param o Object to retrieve
  * @param fgOnly Whether to include only fields in current fetch group
  */
 public void retrieve(Object o, boolean fgOnly) {
   checkStatus();
   pm.retrieve(o, fgOnly);
 }