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Java 如何在hibernate中映射联接类

java hibernate mapping

Java 如何在hibernate中映射联接类,java,hibernate,mapping,Java,Hibernate,Mapping,我想映射类节点、单元和模块以执行此选择： select n.nid, n.nnm, n.nhwtype, u.unnr, u.unhwtype, u.unslot, m.mpos, m.mhwtype from node n, unit u, module m where n.nid*=u.nid and n.nid*=m.nid and u.nid*=m.nid and u.unnr*=m.unnr and n.nhwtype in (10020, 10021, 10022, 10023, 1

我想映射类节点、单元和模块以执行此选择：

select n.nid, n.nnm, n.nhwtype, u.unnr, u.unhwtype, u.unslot, m.mpos, m.mhwtype from node n, unit u, module m where n.nid*=u.nid and n.nid*=m.nid and u.nid*=m.nid and u.unnr*=m.unnr and n.nhwtype in (10020, 10021, 10022, 10023, 10002, 10017, 10001) and m.mpos not between 11 and 10000
（一）节点->单元（多个）

（一）单元->模块（多个）

我试了很多次，但都没有成功。

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