데스나이트

<p>BooleanBuilder를 사용하면 간단하지 않을까요?</p><pre class="hljs"><code>@Test
void dynamicQueryWhereParamAll() {
    String usernameParam = "member1";
    Integer ageParam = 10;

    List<Member> result = searchMember3(usernameParam, ageParam);
    assertThat(result.size()).isEqualTo(1);
}

private List<Member> searchMember3(String usernameCond, Integer ageCond) {
    return query.selectFrom(member)
            .where(allEq(usernameCond, ageCond))
            .fetch();
}

private Predicate usernameEq(String usernameCond) {
    return usernameCond != null ? member.username.eq(usernameCond) : null;
}

private Predicate ageEq(Integer ageCond) {
    return ageCond != null ? member.age.eq(ageCond) : null;
}

private BooleanBuilder allEq(String usernameCond, Integer ageCond) {
    BooleanBuilder builder = new BooleanBuilder();
    return builder.and(usernameEq(usernameCond)).and(ageEq(ageCond));
}</code></pre>

소개

게시글