Question

我在xml中有以下代码，我如何在下面的代码中使用注释

     <hibernate-mapping>
<class name="com.gf.DataDetail" table="DATADETAIL">

    <id name="DataId" type="java.lang.Long">
        <column name="DATA_ID" />
        <generator class="identity" />
    </id>
    <property name="recordId" type="java.lang.Long">
        <column name="RECORD_ID" />
    </property>
    <property name="recordName" type="java.lang.String">
        <column name="RECORD_NAME"></column>
    </property>

               <set name="detail" table="DETAIL" 
            inverse="true" lazy="true" fetch="select">
        <key>
            <column name="DATA_ID" not-null="true" />
        </key>
        <one-to-many class="com.gf.detail" />
    </set>

  <set name="loadErrors" table="LOADERRORS" 
            inverse="true" lazy="true" fetch="select">
        <key>
            <column name="DATA_ID" not-null="true" />
        </key>
        <one-to-many class="com.gf.loadErrors" />
    </set>
</class>

在java文件中我有

@Entity  
@Table(name = "DATADETAIL")

@JsonIgnoreProperties(ignoreUnknown = true)
public class BatchMetaData {

    @Id  
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "DATA_ID")  
    private Number DATA_ID;

    @Column(name = "RECORD_ID")  
    private Number RECORD_ID;

    @Column(name = "RECORD_NAME")  
    private String RECORD_NAME;         

@OneToMany(fetch = FetchType.LAZY, mappedBy = "DATADETAIL")
    private Set<DETAIL> detail = 
            new HashSet<DETAIL>(0);

    @OneToMany(fetch = FetchType.LAZY, mappedBy = "DATADETAIL")
    private Set<LOADERRORS> loadErrors = 
            new HashSet<LOADERRORS>(0);



    public Set<DETAIL> getDetail() {
        return detail;
    }
    public void setDetail(Set<DETAIL> detail) {
        this.detail = detail;
    }
    public Set<LOADERRORS> getLoadErrors() {
        return LoadErrors;
    }
    public void setLoadErrors(Set<LOADERRORS> LoadErrors) {
        this.LoadErrors = LoadErrors;
    }

我只是在这里从xml文件转换为注释文件。我在错误的地方应用oneto映射注释。对此提出了任何建议。

Answer 1

这应该有效：

@OneToMany(fetch = FetchType.LAZY, mappedBy = "parent name")

mappedBy应该是父对象名。

如何在hibernate java中使用给定xml的注释

1 个答案: