我有休眠状态,它是这样的。

String queryString = "from MFunction as mFunction where mFunction.functionKey in "
            + "((select mRole.enterprise  from MRole as mRole where mRole.roleKey=:role), "
            + "(select mRole2.project from MRole as mRole2 where mRole2.roleKey=:role ), "
            + "(select mRole3.technology  from MRole  as mRole3 where mRole3.roleKey=:role ))";


但是休眠查询只接受第一个值。

Hibernate: select mfunction0_.FunctionKey as Function1_73_, mfunction0_.`Add` as Add2_73_, mfunction0_.`Audit` as Audit3_73_, mfunction0_.ClientKey as ClientKey73_, mfunction0_.CreatedBy as CreatedBy73_, mfunction0_.CreatedTs as CreatedTs73_, mfunction0_.`Delete` as Delete7_73_, mfunction0_.`Edit` as Edit8_73_, mfunction0_.`Financial` as Financial9_73_, mfunction0_.FunctionName as Functio10_73_, mfunction0_.`General` as General11_73_, mfunction0_.Level as Level73_, mfunction0_.LevelKey as LevelKey73_, mfunction0_.LogicalDeleteTms as Logical14_73_, mfunction0_.UpdatedBy as UpdatedBy73_, mfunction0_.UpdatedTs as UpdatedTs73_, mfunction0_.`View` as View17_73_ from appanalytixdb.M_Function mfunction0_ where mfunction0_.FunctionKey in (select mrole1_.Enterprise from appanalytixdb.M_Role mrole1_ where mrole1_.RoleKey=?)


休眠版本:4.1.8.Final

最佳答案

您的问题是您创建了一个列表列表,并且应该创建一个功能键列表。

我只看到2个选项:


将一个“ in”更改为与或相关的3条语句。


String queryString =“来自MFunction,作为mFunction,其中mFunction.functionKey输入(从MRole选择mRole.enterprise作为mRole,其中mRole.roleKey =:role)或mFunction.functionKey输入(从MRole选择mRole2.project作为mRole2,其中mRole2.roleKey =:角色)或mFunction.functionKey(从MRole中选择mRole3.technology作为mRole3,其中mRole3.roleKey =:role)”;


最好的解决方案是预先选择所有项目,技术,企业,并将它们结合在一起(以避免重复)。但是根据这篇文章Hibernate Union alternatives,休眠状态还不支持联合。
如果您的表中没有那么多条目,那么我将创建一个视图,并在其上使用查询。在这种情况下,视图可能非常便宜且易于使用。

07-27 13:50