gistfile1.txt

    private <T extends EDoc<T>> Specification<T> findByPaymentDocumentNumber(String payDocNum) {
        log.debug("findByPaymentDocumentNumber() - start: payDocNum = {}", payDocNum);
        Specification<T> result = null;
        if (StringUtils.isNotEmpty(payDocNum)) {
            result = (root, query, criteriaBuilder) ->
                    criteriaBuilder.like(root.join("requestDocumentAttachmentList").get("paymentNumber"), "%" + payDocNum + "%");
        }
        log.debug("findByPaymentDocumentNumber() - end");
        return result;
    }

    private <T extends EDoc<T>> Specification<T> findByPaymentDocumentDateTo(Date payDocDateTo, Integer offset) {
        log.debug("findByPaymentDocumentDateTo() - start: payDocDateTo = {}, offset = {}", payDocDateTo, offset);
        Specification<T> result = null;
        if (payDocDateTo != null) {
            final Date date = addDays(addMinutes(payDocDateTo, offset), 1);
            result = (root, query, criteriaBuilder) -> criteriaBuilder.lessThanOrEqualTo(
                    root.join("requestDocumentAttachmentList").get("paymentDate"), date);
        }
        log.debug("findByPaymentDocumentDateTo() - end");
        return result;
    }