Java hibernate-投影组件
我有一个地址bean,它有一个LatLng组件。请告诉我如何投影该组件并将其转换为新类Java hibernate-投影组件,java,hibernate,Java,Hibernate,我有一个地址bean,它有一个LatLng组件。请告诉我如何投影该组件并将其转换为新类 谢谢。据我所知,您希望为LatLng创建一个单独的类,如下所示 public class LatLng { } public class Address { private LatLng latLng; } 然后将其包含在实体地址bean中,如下所示 public class LatLng { } public class Address { private LatLng latLng; }
谢谢。据我所知,您希望为LatLng创建一个单独的类,如下所示
public class LatLng {
}
public class Address {
private LatLng latLng;
}
然后将其包含在实体地址bean中,如下所示
public class LatLng {
}
public class Address {
private LatLng latLng;
}
现在,看一看和。作为示例,您可以使用以下条件:
Criteria criteria = session.createCriteria(Cat.class);
criteria.add(Restrictions.like(“description”, “Pap”)
.addOrder(Order.asc(“description”);
Criteria subCriteria = criteria.createCriteria("kind", "kind");
subCriteria.add(Restrictions.eq("description", "persa"));
Criteria anotherSubCriteria = subCriteria.createCriteria("anAssociation","anAssociation");
anotherSubCriteria.add(Restrictions.eq("attribute", "anything"));
criteria.setResultTransformer(new AliasToBeanResultTransformer(Cat.class));
criteria.crateAlias(“kind.anAssociation”, “kind_anAssociation”);
criteria.setProjections(Projections.projectionList()
.add(Projections.alias(Projections.property(“id”), “id”))
.add(Projections.alias(Projections.property(“kind.id”, “kind.id”))
.add(Projections.alias(Projections.property(“kind.anAssocation.attribute”, “kind.anAssociation.attribute”))
List cats = criteria.list();
但是如果你想保存一些代码,你可以使用Seimos和代码
Filters filters = new Filters();
filters.add(new Filters(“description”, “Pap”)
.add(new Filter(“description”))
.add(new Filter("kind.description", "persa"))
.add(new Filter("kind.anAssociation.attribute", "anything"));
List<Cat> cats = dao.find(filters);
Filters=newfilters();
过滤器。添加(新过滤器(“说明”、“Pap”)
.添加(新过滤器(“说明”))
.add(新过滤器(“种类说明”、“个人”))
.add(新过滤器(“kind.anasociation.attribute”、“anything”);
List cats=dao.find(过滤器);
<>请考虑使用< /P>