From max.andersen at jboss.com Sun Sep 10 12:31:45 2006
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From: Max Rydahl Andersen <max.andersen at jboss.com>
To: hibernate-dev at lists.jboss.org
Subject: Re: [hibernate-dev] many-to-one association no persists
Date: Sun, 10 Sep 2006 18:31:30 +0200
Message-ID: <op.tfn76semsj49yt@xam>
In-Reply-To: 2f2ae9520609100909t3e98eb2dif235890fcaeb52fc@mail.gmail.com

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http://forum.hibernate.org

> Hello,
>
> I am having a problem to insert or update the Exam object, as follow:
>
> Exam.hbm.xml
> [code]
>
> <!DOCTYPE hibernate-mapping PUBLIC
>      "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
>      "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
>
>  <hibernate-mapping>
>  <!--
>      Created by the Middlegen Hibernate plugin 2.2
>
>      <a href=3D"http://boss.bekk.no/boss/middlegen/" target=3D"_blank"
> rel=3D"nofollow">http://boss.bekk.no/boss/middlegen/</a>
>      <a href=3D"http://www.hibernate.org/" target=3D"_blank"
> rel=3D"nofollow">http://www.hibernate.org/</a>
>  -->
>
>  <class
>      name=3D"Exam"
>      table=3D"exam"
>  >
>
>      <composite-id name=3D"comp_id" class=3D"ExamPK">
>          <key-property
>              name=3D"cdUnit"
>              column=3D"cd_unit"
>              type=3D"java.lang.Integer"
>              length=3D"4"
>          />
>          <key-property
>              name=3D"cdExam"
>              column=3D"cd_exam"
>              type=3D"java.lang.Integer"
>              length=3D"4"
>          />
>      </composite-id>
>
>      <many-to-one
>          name=3D"pacient"
>          class=3D"Pacient"
>          not-null=3D"true"
>          update=3D"false"
>  	insert=3D"false"
>      >
>          <column name=3D"cd_pacient" />
>          <column name=3D"cd_unit" />
>      </many-to-one>
>
>  </class>
>  </hibernate-mapping>
>
>  [/code]
>
> The problem is that the association with pacient is not pesisting in
> the database, due to update=3D"false" insert=3D"false" configuration.
> But without this configuration, occour a mapping error:
> org.hibernate.MappingException: Repeated column in mapping for entity:
> Exam column: cd_unit (should be mapped with insert=3D"false"  =

> update=3D"false").
>
> The exam table have as PK (cd_exam and cd_unit) e the pacient table PK
> (cd_pacient and cd_unit).
> But I need to persist the reference to pacient when I am insert or
> update the exam objet in the database.
>
> Please could anyone help me?
>
> Thanks,
> Rufino.



-- =

--
Max Rydahl Andersen
callto://max.rydahl.andersen

Hibernate
max(a)hibernate.org
http://hibernate.org

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max.andersen(a)jboss.com


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