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多個連接可以成爲條件嗎?JPA Criteria API多重集合連接
final CriteriaBuilder builder = entityManager.getCriteriaBuilder();
CriteriaQuery<Game> query = builder.createQuery(Game.class);
final Root<Game> game = query.from(Game.class);
final ListJoin<Game, Store> store = game.join(Game_.stores);
final ListJoin<Game, Category> category = game.join(Game_.categories);
即使沒有謂詞,第二次連接(catetory)也會使結果不同。
這段代碼有什麼問題?