休眠：收集標準

Question

我有一個休眠和標準的問題。我有兩個職業：

public class Place{ 
    long id; 
    String name; 
    Set<Street> streets; 
} 

public class Street{ 
    long id; 
    String name; 
    Place place; 
} 

我現在想寫像在給定的參數和參數給定一個名爲像街道返回的地點清單與名稱的方法。

public List<Place> findPlaces(String name, String streetname){ 
    //getSession() gives me a hibernate session 
    Criteria crit = getSession().createCriteria(Place.class, "place"); 
    crit.add(Restrictions.like("name", name+"%")); 
    //Everything works fine until here 
    //Last step: Sort out all places not containing a street named like streetname + "%" 
} 

我嘗試了最後一步不同的方式：

//streetList is a list of all streets named like streetname 
crit.add(Restrictions.in("streets", streetList)); 

另一種方式：

DetachedCriteria strasseCrit = DetachedCriteria.forClass(Street.class, "street"); 
streetCrit.add(Restrictions.like("street.name", streetname + "%")); 
streetCrit.createAlias("street.place", "streetPlace"); 
streetCrit.add(Restrictions.eqProperty("streetPlace.id", "place.id")); 
streetCrit.setProjection(Projections.property("street.name")); 
crit.add(Subqueries.exists(streetCrit)); 

最後一種方法：

crit.createAlias("place.streets", "street"); 
crit.add(Restrictions.like("street.name", streetname + "%")); 
crit.setResultTransformer(DistinctResultTransformer.INSTANCE); 

我希望你能理解我的問題並抱歉我的英語不好:(

我搜索了兩天一個解決方案，我不知道如何去...

問候形成德國:) 菲利普

Answer 1

public List<Place> findPlaces(String name, String streetname){ 
    Criteria crit = getSession().createCriteria(Place.class, "place"); 
    criteria.createAlias("streets", "s"); // Create alias for streets 
    crit.add(Restrictions.like("s.name", name+"%")); 
    // continue method 
}