private boolean isWatermarkExists ( ) { if ( ! Strings . isNullOrEmpty ( this . state . getProp ( ConfigurationKeys . EXTRACT_DELTA_FIELDS_KEY ) ) && ! Strings . isNullOrEmpty ( this . state . getProp ( ConfigurationKeys . SOURCE_QUERYBASED_WATERMARK_TYPE ) ) ) { return true ; } return false ; }
true if water mark columns and water mark type provided