4장 결과 조회

1)

    @Test
    public void resultFetch(){

        // List
        List<Member> fetch = queryFactory
                .selectFrom(member)
                .fetch();

        // 단건
        Member findMember1 = queryFactory
                .selectFrom(member)
                .fetchOne();

        // 처음 한 건 조회
        Member findMember2 = queryFactory
                .selectFrom(member)
                .fetchFirst();

        // 페이징에서 사용
        QueryResults<Member> results = queryFactory
                .selectFrom(member)
                .fetchResults();
        results.getTotal();
        List<Member> content = results.getResults();


        // count 쿼리로 변경
        long count = queryFactory
                .selectFrom(member)
                .fetchCount();
    }