Teneo在OneToMany中忽略mappedBy并创建ForeignKey

时间：2014-07-01 23:30:41

标签： hibernate nhibernate many-to-many hibernate-mapping teneo

我正在尝试关注this example并在模型中使用复合键和使用Teneo的其他列在单独的表中创建多对多关系。我的模型处于休眠状态，这就是ecore文件对模型部分的喜欢：

<?xml version="1.0" encoding="UTF-8"?>
<ecore:EPackage xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="my" nsURI="test.my" nsPrefix="test">
  <eClassifiers xsi:type="ecore:EClass" name="Resource">
    <eAnnotations source="teneo.jpa">
      <details key="appinfo" value="@Table(uniqueConstraints={@UniqueConstraint(columnNames={&quot;ip&quot;,&quot;name&quot;, &quot;revision&quot;,  &quot;type&quot;})})"/>
    </eAnnotations>
    <eStructuralFeatures xsi:type="ecore:EAttribute" name="type" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
    <eStructuralFeatures xsi:type="ecore:EAttribute" name="name" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
    <eStructuralFeatures xsi:type="ecore:EAttribute" name="id" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EInt"
        iD="true">
      <eAnnotations source="teneo.jpa">
        <details key="appinfo" value="@Id&#xD;&#xA;    @GeneratedValue(strategy=GenerationType.AUTO)"/>
      </eAnnotations>
    </eStructuralFeatures>
    <eStructuralFeatures xsi:type="ecore:EReference" name="resourceTags" ordered="false"
        upperBound="-1" eType="#//ResourceTag" resolveProxies="false" eOpposite="#//ResourceTag/resource">
      <eAnnotations source="teneo.jpa">
        <details key="appinfo" value="@OneToMany ( indexed = false, fetch=FetchType.EAGER, mappedBy = &quot;resourceId&quot;,  cascade=CascadeType.ALL)"/>
      </eAnnotations>
    </eStructuralFeatures>
  </eClassifiers>
  <eClassifiers xsi:type="ecore:EClass" name="Tag">
    <eAnnotations source="teneo.jpa">
      <details key="appinfo" value="@Table(uniqueConstraints={@UniqueConstraint(columnNames={ &quot;name&quot;})})&#xD;&#xA;@NoAuditing"/>
    </eAnnotations>
    <eStructuralFeatures xsi:type="ecore:EAttribute" name="name" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
    <eStructuralFeatures xsi:type="ecore:EAttribute" name="id" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EInt"
        iD="true">
      <eAnnotations source="teneo.jpa">
        <details key="appinfo" value="@Id&#xD;&#xA;    @GeneratedValue(strategy=GenerationType.AUTO)"/>
      </eAnnotations>
    </eStructuralFeatures>
    <eStructuralFeatures xsi:type="ecore:EReference" name="resourceTags" ordered="false"
        upperBound="-1" eType="#//ResourceTag" resolveProxies="false" eOpposite="#//ResourceTag/tag">
      <eAnnotations source="teneo.jpa">
        <details key="appinfo" value="@OneToMany (indexed=false, fetch=FetchType.EAGER, mappedBy = &quot;pk.tagid&quot;, cascade=CascadeType.ALL)"/>
      </eAnnotations>
    </eStructuralFeatures>
  </eClassifiers>
  <eClassifiers xsi:type="ecore:EClass" name="ResourceTag">
    <eAnnotations source="teneo.jpa">
      <details key="appinfo" value="@Table(name = &quot;ResourceTag&quot;)&#xD;&#xA;"/>
    </eAnnotations>
    <eStructuralFeatures xsi:type="ecore:EAttribute" name="date" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EDate"/>
    <eStructuralFeatures xsi:type="ecore:EReference" name="pk" eType="#//ResourceTagId"
        resolveProxies="false">
      <eAnnotations source="teneo.jpa">
        <details key="appinfo" value="@EmbeddedId"/>
      </eAnnotations>
    </eStructuralFeatures>
    <eStructuralFeatures xsi:type="ecore:EAttribute" name="comment" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
    <eStructuralFeatures xsi:type="ecore:EReference" name="tag" eType="#//Tag" eOpposite="#//Tag/resourceTags">
      <eAnnotations source="teneo.jpa">
        <details key="appinfo" value="@Transient"/>
      </eAnnotations>
    </eStructuralFeatures>
    <eStructuralFeatures xsi:type="ecore:EReference" name="resource" eType="#//Resource"
        eOpposite="#//Resource/resourceTags">
      <eAnnotations source="teneo.jpa">
        <details key="appinfo" value="@Transient"/>
      </eAnnotations>
    </eStructuralFeatures>
  </eClassifiers>
  <eClassifiers xsi:type="ecore:EClass" name="ResourceTagId">
    <eAnnotations source="teneo.jpa">
      <details key="appinfo" value="@Embeddable"/>
    </eAnnotations>
    <eStructuralFeatures xsi:type="ecore:EReference" name="tag" eType="#//Tag">
      <eAnnotations source="teneo.jpa">
        <details key="appinfo" value="@ManyToOne&#xD;&#xA;@JoinColumns({&#xD;&#xA;&#x9;@JoinColumn(name=&quot;tagId&quot;, referencedColumnName = &quot;id&quot;)&#xD;&#xA;})"/>
      </eAnnotations>
    </eStructuralFeatures>
    <eStructuralFeatures xsi:type="ecore:EReference" name="resource" eType="#//Resource">
      <eAnnotations source="teneo.jpa">
        <details key="appinfo" value="@ManyToOne&#xD;&#xA;@JoinColumns({&#xD;&#xA;&#x9;@JoinColumn(name=&quot;resourceId&quot;, referencedColumnName = &quot;id&quot;)&#xD;&#xA;})"/>
      </eAnnotations>
    </eStructuralFeatures>
  </eClassifiers>
</ecore:EPackage>

此模型的生成映射是

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping auto-import="false">
    <typedef name="model.EIllegalStateException" class="org.eclipse.emf.teneo.hibernate.mapping.DefaultToStringUserType">
        <param name="epackage">http://www.qualcomm.com/qti/qsip/designbook/model</param>
        <param name="edatatype">EIllegalStateException</param>
    </typedef>
    <class name="test.my.ResourceImpl" entity-name="Resource" abstract="false" lazy="false" discriminator-value="Resource" table="`resource`">
        <meta attribute="eclassName" inherit="false">Resource</meta>
        <meta attribute="epackage" inherit="false">http://www.qualcomm.com/qti/qsip/designbook/model</meta>
        <id name="id" type="int" unsaved-value="0">
            <column not-null="true" unique="false" name="`id`"/>
            <generator class="native"/>
        </id>
        <discriminator type="string">
            <column name="`dtype`" index="resourcedtype" length="255" not-null="true"/>
        </discriminator>
        <version name="revision" type="int">
            <column not-null="true" unique="false" name="`revision`" unique-key="c0"/>
        </version>
        <property name="type" lazy="false" insert="true" update="true" not-null="false" unique="false" type="java.lang.String">
            <column not-null="false" unique="false" name="`type`" unique-key="c0"/>
        </property>
        <property name="name" lazy="false" insert="true" update="true" not-null="false" unique="false" type="java.lang.String">
            <column not-null="false" unique="false" name="`name`" unique-key="c0"/>
        </property>
        <bag name="resourceTags" inverse="true" lazy="false" cascade="all,delete-orphan">
            <key update="true">
                <column name="`resourcetag_resource_id`" unique="false"/>
            </key>
            <one-to-many entity-name="ResourceTag"/>
        </bag>
    </class>
    <class name="test.my.TagImpl" entity-name="Tag" abstract="false" lazy="false" discriminator-value="Tag" table="`tag`">
        <meta attribute="eclassName" inherit="false">Tag</meta>
        <meta attribute="epackage" inherit="false">http://www.qualcomm.com/qti/qsip/designbook/model</meta>
        <id name="id" type="int" unsaved-value="0">
            <column not-null="true" unique="false" name="`id`"/>
            <generator class="native"/>
        </id>
        <discriminator type="string">
            <column name="`dtype`" index="tagdtype" length="255" not-null="true"/>
        </discriminator>
        <property name="name" lazy="false" insert="true" update="true" not-null="false" unique="false" type="java.lang.String">
            <column not-null="false" unique="false" name="`name`" unique-key="c0"/>
        </property>
        <bag name="resourceTags" inverse="true" lazy="false" cascade="all,delete-orphan">
            <key update="true">
                <column name="`resourcetag_tag_id`" unique="false"/>
            </key>
            <one-to-many entity-name="ResourceTag"/>
        </bag>
    </class>
    <class name="test.my.ResourceTagImpl" entity-name="ResourceTag" abstract="false" lazy="false" discriminator-value="ResourceTag" table="`resourcetag`">
        <meta attribute="eclassName" inherit="false">ResourceTag</meta>
        <meta attribute="epackage" inherit="false">http://www.qualcomm.com/qti/qsip/designbook/model</meta>
        <composite-id name="pk" class="test.my.ResourceTagIdImpl" access="org.eclipse.emf.teneo.hibernate.mapping.property.EReferencePropertyHandler">
            <meta attribute="eclassName" inherit="false">ResourceTagId</meta>
            <meta attribute="epackage" inherit="false">http://www.qualcomm.com/qti/qsip/designbook/model</meta>
            <key-many-to-one name="tag" entity-name="Tag" lazy="false">
                <column not-null="false" unique="false" name="`tagid`"/>
            </key-many-to-one>
            <key-many-to-one name="resource" entity-name="Resource" lazy="false">
                <column not-null="false" unique="false" name="`resourceid`"/>
            </key-many-to-one>
        </composite-id>
        <discriminator type="string">
            <column name="`dtype`" index="ResourceTagdtype" length="255" not-null="true"/>
        </discriminator>
        <property name="date" lazy="false" insert="true" update="true" not-null="false" unique="false" type="timestamp">
            <column not-null="false" unique="false" name="`date`"/>
        </property>
        <property name="comment" lazy="false" insert="true" update="true" not-null="false" unique="false" type="java.lang.String">
            <column not-null="false" unique="false" name="`comment`"/>
        </property>
    </class>
</hibernate-mapping>

正如您所看到的，从Resource到ResourceTag的oneToMany映射由新的外键映射，因此ResourceTag表重复了名为resourcetag_tag_id和resourcetag_resource_id的列，而不是复合主键'resourceId'和'tagid'。

我的hibernate perisitent选项如下：

props.setProperty(PersistenceOptions.CASCADE_POLICY_ON_NON_CONTAINMENT,
                "PERSIST,REFRESH");
props.setProperty(PersistenceOptions.CASCADE_POLICY_ON_CONTAINMENT,
                "ALL");

props.setProperty(PersistenceOptions.MAP_ALL_LISTS_AS_IDBAG, "false");
props.setProperty(PersistenceOptions.ALWAYS_MAP_LIST_AS_BAG, "false");

props.setProperty(PersistenceOptions.ID_FEATURE_AS_PRIMARY_KEY, "false");
props.setProperty(PersistenceOptions.ALWAYS_VERSION, "false");
props.setProperty(PersistenceOptions.JOIN_TABLE_FOR_NON_CONTAINED_ASSOCIATIONS, "false");
props.setProperty(PersistenceOptions.SET_FOREIGN_KEY_NAME, "false");
props.setProperty(PersistenceOptions.FEATUREMAP_AS_COMPONENT, "true");

我在resource.resourceTags中的@OnetoMany关系的mappedby属性中尝试了很多不同的组合，但teneo / hibernate都忽略了它们。我也尝试使用@AssociationOverride，如示例中所述，但这对映射也没有任何影响。

我想要实现标签和资源之间的双向多对多关系，这种关系具有一些额外的属性。因此，当我加载资源时，我可以自动获取标记，当我加载标记时，我可以自动获取资源。但是，使用此映射时，ResourceTag表中的额外外键列为null，并且不会因此获取关系。

这是模型的一个子集，我删除的这些类中包含了许多其他引用。许多配置都是根据其他要求定义的。

1 个答案:

答案 0 :(得分：0)

使用joinColumn而不是mappedby实际上解决了这个问题。您可以点击信息here。

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