*                    assumed that this Entity already exists.
     * @return true if the attribute was successfully added. 
   */
  public boolean createAttribute(final String rulesetname, final REntityEntry attribute) {
        IREntity entity = session.getEntityFactory().findRefEntity(attribute.attribute);
        entity.addAttribute(attribute);
        return true;
    }
    /**
     * Given a Rule Set and an Entity, returns the list of EntityEntry objects