/**
  * The methods <CODE>
  *     getHandle
  *     hasMatchingHandle
  * </CODE> are used by Presentation Objects that need to populate
  * HTML select lists with <CODE>EmployerCandidateBDO</CODE> objects as options.
  *
  * The <CODE>getHandle()</CODE> method is used
  * to set the value for each option,
  * and the <CODE>hasMatchingHandle()<CODE>
  * methods are used to lookup the Data Object when the selection has
  * been made.
  *
  * This EmployerCandidateBDO object holds a reference to a EmployerCandidateDO object.
  * The id of this EmployerCandidateBDO is the id of its EmployerCandidateDO.
  * @exception DatabaseManagerException
  *   If a connection to the database cannot be established, etc.
  * @return id of this BDO as a string
  *   If an object id can't be allocated for this object.
  */
 public String getHandle() throws DatabaseManagerException {
   return DO.getHandle();
 }