Hibernate保存子表更新父表

0 0

Hibernate保存子表更新父表0

现在有两个对象一个是模型对象一个模型属性对象他们的关系是1对多的关系

模型对象如下:

public class Model implements java.io.Serializable {

    private String modelId; //模型ID
    private String modelName; //模型名称
    private Set mapRelation = new HashSet(0); //映射关系
    private Set modelProperties = new HashSet(0); //模型属性

    public Model() {
    }

    public Model(String modelId) {
        this.modelId = modelId;
    }

    public Model(String modelId,  String modelName,
            Set mapRelation, Set modelProperties) {
        this.modelId = modelId;
        this.modelName = modelName;
        this.mapRelation = mapRelation;
        this.modelProperties = modelProperties;
    }

    public String getModelId() {
        return modelId;
    }

    public void setModelId(String modelId) {
        this.modelId = modelId;
    }

    public String getModelName() {
        return modelName;
    }

    public void setModelName(String modelName) {
        this.modelName = modelName;
    }

    public Set getMapRelation() {
        return mapRelation;
    }

    public void setMapRelation(Set mapRelation) {
        this.mapRelation = mapRelation;
    }

    public Set getModelProperties() {
        return modelProperties;
    }

    public void setModelProperties(Set modelProperties) {
        this.modelProperties = modelProperties;
    }
}

模型属性:

public class ModelProperties implements java.io.Serializable {

    private String modelPropertId; //模型属性ID
    private Model model;  //模型
    private String propertName; //属性名
    private String propertType; //属性类型

    public ModelProperties() {
    }

    public ModelProperties(String modelPropertId) {
        this.modelPropertId = modelPropertId;
    }

    public ModelProperties(String modelPropertId, Model model, String propertName,
            String propertType) {
        this.modelPropertId = modelPropertId;
        this.model = model;
        this.propertName = propertName;
        this.propertType = propertType;
        
    }

    public String getModelPropertId() {
        return modelPropertId;
    }

    public void setModelPropertId(String modelPropertId) {
        this.modelPropertId = modelPropertId;
    }

    public Model getModel() {
        return model;
    }

    public void setModel(Model model) {
        this.model = model;
    }

    public String getPropertName() {
        return propertName;
    }

    public void setPropertName(String propertName) {
        this.propertName = propertName;
    }

    public String getPropertType() {
        return propertType;
    }

    public void setPropertType(String propertType) {
        this.propertType = propertType;
    }

}

他们的hbm.xml文件如下

<hibernate-mapping>
    <class name="com.carnation.domain.Model" table="T_QO_MODEL" >
        <id name="modelId" type="java.lang.String" unsaved-value="null">
            <column name="MODELID" length="64" />
           <generator class="uuid.hex"></generator>
        </id>
        <many-to-one name="rule" cascade="all"  class="com.carnation.domain.Rule" fetch="select">
            <column name="RULEID" length="64" />
        </many-to-one>
        <property name="modelName" type="java.lang.String" >
            <column name="NAME" length="20" />
        </property>
        <set name="mapRelation" inverse="true">
            <key>
                <column name="MODELID" length="64" />
            </key>
            <one-to-many class="com.carnation.domain.MapRelation" />
        </set>
        <set name="modelProperties" inverse="false">
            <key>
                <column name="MODELID" length="64" />
            </key>
            <one-to-many class="com.carnation.domain.ModelProperties" />
        </set>
    </class>
</hibernate-mapping>

<hibernate-mapping>
    <class name="com.carnation.domain.ModelProperties" table="T_QO_PROPERTIES" >
        <id name="modelPropertId" type="java.lang.String" unsaved-value="null">
            <column name="MODELPROID" length="64" />
          <generator class="uuid.hex"></generator>
        </id>
        <many-to-one name="model" cascade="all" class="com.carnation.domain.Model" fetch="select">
            <column name="MODELID" length="64" />
        </many-to-one>
        <property name="propertName" type="java.lang.String">
            <column name="NAME" length="20" />
        </property>
        <property name="propertType" type="java.lang.String">
            <column name="TYPE" length="20" />
        </property>
        <set name="propertSqlcolMap" inverse="true">
            <key>
                <column name="MODELPROID" length="64" />
            </key>
            <one-to-many class="com.carnation.domain.PropertSqlcolMap" />
        </set>
    </class>
</hibernate-mapping>

我想在保存模型属性对象的时候设置模型属性对象表的模型ID为8a8080a637ab74950137ab7499c30002，其中模型表已经存在id为8a8080a637ab74950137ab7499c30002的记录也就是我想保存模型属性对象的时候不需要更新模型表因为如果更新模型表的话会导致模型表id为8a8080a637ab74950137ab7499c30002的记录别的字段为空我应该怎么写才能到达效果或者怎么配置，下面是我的测试代码

public void testSave() {
    
        ModelProperties mp = new ModelProperties();
        mp.setPropertName("用户名");
        Model model = new Model();
        model.setModelId("8a8080a637ab74950137ab7499c30002");
        //model = (Model)ruleDao.load("8a8080a637ab74950137ab7499c30002");  //难道只能用这种方式吗？这样感觉不太适合吧
        mp.setModel(model);
        ruleDao.saveEntity(mp);
    }