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JPA Specification in

Posted at 2019-03-17

    private Specification<User> getUserIdsSpecification(List<String> userIds) {
        return (root, criteriaQuery, criteriaBuilder) -> {
            In<String> in = criteriaBuilder.in(root.get("userId"));
            userIds.forEach(userId-> in.value(userId));
            return in;
        };
    }

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