[jpa] 조회된 목록이 없는 경우 빈 Page 만들기

출처 : stackoverflow.com/questions/37136679/how-to-convert-a-list-of-enity-object-to-page-object-in-spring-mvc-jpa

 

  public Page<?> toPage(List<?> list, Pageable pageable) {
        int start = (int) pageable.getOffset();
        int end = Math.min((start + pageable.getPageSize()), list.size());
        if(start > list.size())
            return new PageImpl<>(new ArrayList<>(), pageable, list.size());
        return new PageImpl<>(list.subList(start, end), pageable, list.size());
    }