0

在 EclipseLink 2.5 (JPA 2.1) 中,我试图将本机查询的结果映射到 POJO,根据这些链接应该是可能的:

...使用这种语法(直接取自 EclipseLink 2.5 api 文档):

Query q = em.createNativeQuery(
      "SELECT c.id, c.name, COUNT(o) as orderCount, AVG(o.price) AS avgOrder " +
      "FROM Customer c, Orders o " +
      "WHERE o.cid = c.id " +
      "GROUP BY c.id, c.name",
      "CustomerDetailsResult");

@SqlResultSetMapping(
       name="CustomerDetailsResult",
       classes={
          @ConstructorResult(
               targetClass=com.acme.CustomerDetails.class,
                 columns={
                    @ColumnResult(name="id"),
                    @ColumnResult(name="name"),
                    @ColumnResult(name="orderCount"),
                    @ColumnResult(name="avgOrder", type=Double.class)
                    }
          )
       }
      )

但是,找不到@SqlResultSetMapping 的“类”属性。我尝试使用 Eclipselink 2.5.2 和 2.6。我必须使用另一个(可选)EclipseLink jar 来获得该功能吗?

4

0 回答 0