import sample.data.jpa.domain.Rating; //导入依赖的package包/类
@Test
public void executesQueryMethodsCorrectly() {
	City city = this.cityRepository
			.findAll(new PageRequest(0, 1, Direction.ASC, "name")).getContent()
			.get(0);
	assertThat(city.getName()).isEqualTo("Atlanta");

	Page<HotelSummary> hotels = this.repository.findByCity(city,
			new PageRequest(0, 10, Direction.ASC, "name"));
	Hotel hotel = this.repository.findByCityAndName(city,
			hotels.getContent().get(0).getName());
	assertThat(hotel.getName()).isEqualTo("Doubletree");

	List<RatingCount> counts = this.repository.findRatingCounts(hotel);
	assertThat(counts).hasSize(1);
	assertThat(counts.get(0).getRating()).isEqualTo(Rating.AVERAGE);
	assertThat(counts.get(0).getCount()).isGreaterThan(1L);
}
 

import sample.data.jpa.domain.Rating; //导入依赖的package包/类
@Test
public void executesQueryMethodsCorrectly() {
	City city = this.cityRepository
			.findAll(new PageRequest(0, 1, Direction.ASC, "name")).getContent()
			.get(0);
	assertThat(city.getName(), is("Atlanta"));

	Page<HotelSummary> hotels = this.repository.findByCity(city,
			new PageRequest(0, 10, Direction.ASC, "name"));
	Hotel hotel = this.repository.findByCityAndName(city,
			hotels.getContent().get(0).getName());
	assertThat(hotel.getName(), is("Doubletree"));

	List<RatingCount> counts = this.repository.findRatingCounts(hotel);
	assertThat(counts, hasSize(1));
	assertThat(counts.get(0).getRating(), is(Rating.AVERAGE));
	assertThat(counts.get(0).getCount(), is(greaterThan(1L)));
}
 

import sample.data.jpa.domain.Rating; //导入依赖的package包/类
@Override
public long getNumberOfReviewsWithRating(Rating rating) {
	Long count = this.ratingCount.get(rating);
	return count == null ? 0 : count;
}
 

import sample.data.jpa.domain.Rating; //导入依赖的package包/类
public ReviewsSummaryImpl(List<RatingCount> ratingCounts) {
	this.ratingCount = new HashMap<Rating, Long>();
	for (RatingCount ratingCount : ratingCounts) {
		this.ratingCount.put(ratingCount.getRating(), ratingCount.getCount());
	}
}
 

import sample.data.jpa.domain.Rating; //导入依赖的package包/类
long getNumberOfReviewsWithRating(Rating rating);