private void setECResponseControl( SearchResultEntry response, ChangeOperationContext opContext, ChangeType type ) { if ( psearchControl.isReturnECs() ) { EntryChange ecControl = new EntryChangeImpl(); ecControl.setChangeType( type ); if ( opContext.getChangeLogEvent() != null ) { ecControl.setChangeNumber( opContext.getChangeLogEvent().getRevision() ); } if ( opContext instanceof RenameOperationContext || opContext instanceof MoveOperationContext ) { ecControl.setPreviousDn( opContext.getDn() ); } response.addControl( ecControl ); } }