Question

我配置了hibernate-search批注（4.1.1版本库）我的班级Intervento。所以，我正在使用jpa，在我的情况下，我可以省略@DocumentId，但我有一个复合主键...



@IdClass(it.domain.InterventoPK.class)
@Entity
@Indexed
@AnalyzerDef(name = "interventongram", tokenizer = @TokenizerDef(factory = StandardTokenizerFactory.class),
filters = {
     @TokenFilterDef(factory = LowerCaseFilterFactory.class),
     @TokenFilterDef(factory = StopFilterFactory.class, params = {
         @Parameter(name = "words", value = "lucene/dictionary/stopwords.txt"),
         @Parameter(name = "ignoreCase", value = "true"),
         @Parameter(name = "enablePositionIncrements", value = "true")
     }),
     @TokenFilterDef(factory = ItalianLightStemFilterFactory.class),
     @TokenFilterDef(factory = SynonymFilterFactory.class, params = {
         @Parameter(name = "synonyms", value = "lucene/dictionary/synonyms.txt"),
         @Parameter(name = "expand", value = "true")
     }),
     @TokenFilterDef(factory = SnowballPorterFilterFactory.class, params = {
            @Parameter(name = "language", value = "Italian")
     })
})



@Table(name = "intervento", catalog = "gestionale")
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(namespace = "Clinigo/it/domain", name = "Intervento")
@XmlRootElement(namespace = "Clinigo/it/domain")
public class Intervento implements Serializable {

    private static final long serialVersionUID = 1L;

    /**
     */

    @Column(name = "idintervento", nullable = false)
    @Basic(fetch = FetchType.EAGER)
    @Id
    @XmlElement
    Integer idintervento;
    /**
     */

    @Column(name = "lingua_idlingua", nullable = false)
    @Basic(fetch = FetchType.EAGER)
    @Id
    @XmlElement
    Integer linguaIdlingua;
    /**
     */
    @Temporal(TemporalType.TIMESTAMP)
    @Column(name = "version", nullable = false)
    @Basic(fetch = FetchType.EAGER)
    @XmlElement
    Calendar version;

@IdClass(it.domain.InterventoPK.class) @Entity @Indexed @AnalyzerDef(name = "interventongram", tokenizer = @TokenizerDef(factory = StandardTokenizerFactory.class), filters = { @TokenFilterDef(factory = LowerCaseFilterFactory.class), @TokenFilterDef(factory = StopFilterFactory.class, params = { @Parameter(name = "words", value = "lucene/dictionary/stopwords.txt"), @Parameter(name = "ignoreCase", value = "true"), @Parameter(name = "enablePositionIncrements", value = "true") }), @TokenFilterDef(factory = ItalianLightStemFilterFactory.class), @TokenFilterDef(factory = SynonymFilterFactory.class, params = { @Parameter(name = "synonyms", value = "lucene/dictionary/synonyms.txt"), @Parameter(name = "expand", value = "true") }), @TokenFilterDef(factory = SnowballPorterFilterFactory.class, params = { @Parameter(name = "language", value = "Italian") }) }) @Table(name = "intervento", catalog = "gestionale") @XmlAccessorType(XmlAccessType.FIELD) @XmlType(namespace = "Clinigo/it/domain", name = "Intervento") @XmlRootElement(namespace = "Clinigo/it/domain") public class Intervento implements Serializable { private static final long serialVersionUID = 1L; /** */ @Column(name = "idintervento", nullable = false) @Basic(fetch = FetchType.EAGER) @Id @XmlElement Integer idintervento; /** */ @Column(name = "lingua_idlingua", nullable = false) @Basic(fetch = FetchType.EAGER) @Id @XmlElement Integer linguaIdlingua; /** */ @Temporal(TemporalType.TIMESTAMP) @Column(name = "version", nullable = false) @Basic(fetch = FetchType.EAGER) @XmlElement Calendar version; ...

我正在......你能帮助我吗？

错误：HSEARCH000058：HSEARCH000116：MassIndexer操作期间出现意外错误 java.lang.ClassCastException：it.domain.InterventoPK无法强制转换为java.lang.Integer 在org.hibernate.type.descriptor.java.IntegerTypeDescriptor.unwrap（IntegerTypeDescriptor.java:36）在org.hibernate.type.descriptor.sql.IntegerTypeDescriptor $ 1.doBind（IntegerTypeDescriptor.java:57）在org.hibernate.type.descriptor.sql.BasicBinder.bind（BasicBinder.java:92） at org.hibernate.type.AbstractStandardBasicType.nullSafeSet（AbstractStandardBasicType.java:305） at org.hibernate.type.AbstractStandardBasicType.nullSafeSet（AbstractStandardBasicType.java:300）在org.hibernate.loader.Loader.bindPositionalParameters（Loader.java:1891）在org.hibernate.loader.Loader.bindParameterValues（Loader.java:1862）在org.hibernate.loader.Loader.prepareQueryStatement（Loader.java:1737）在org.hibernate.loader.Loader.doQuery（Loader.java:828）在org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections（Loader.java:289）在org.hibernate.loader.Loader.doList（Loader.java:2447）在org.hibernate.loader.Loader.doList（Loader.java:2433）在org.hibernate.loader.Loader.listIgnoreQueryCache（Loader.java:2263）在org.hibernate.loader.Loader.list（Loader.java:2258）在org.hibernate.loader.criteria.CriteriaLoader.list（CriteriaLoader.java:122）在org.hibernate.internal.SessionImpl.list（SessionImpl.java:1535）在org.hibernate.internal.CriteriaImpl.list（CriteriaImpl.java:374） at org.hibernate.search.batchindexing.impl.IdentifierConsumerEntityProducer.loadList（IdentifierConsumerEntityProducer.java:150） at org.hibernate.search.batchindexing.impl.IdentifierConsumerEntityProducer.loadAllFromQueue（IdentifierConsumerEntityProducer.java:117） at org.hibernate.search.batchindexing.impl.IdentifierConsumerEntityProducer.run（IdentifierConsumerEntityProducer.java:94）在org.hibernate.search.batchindexing.impl.OptionallyWrapInJTATransaction.run（OptionalWrapInJTATransaction.java:84） at java.util.concurrent.ThreadPoolExecutor $ Worker.runTask（ThreadPoolExecutor.java:886） at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:908）在java.lang.Thread.run（Thread.java:619）

Answer 1

Hibernate Search不处理与 @IdClass 一起使用的复合id类。解决方法是使用 @EmbeddedId 并将 idintervento 和 linguaIdlingua 放入 InterventoPK 。

似乎您在Hibernate搜索论坛上提出了同样的问题 - https://forum.hibernate.org/viewtopic.php?f=9&t=1024512

Answer 2

您可以使用网桥将自定义对象/复合键转换为Lucene可理解格式。例如，对于一个类

@Entity
@Indexed
public class Person {
@EmbeddedId @DocumentId Embedded id
@FieldBridge(impl=PersonPkBridge.class)
private PersonPK id;
...
}

您可以将桥写为like this。这些代码来自“Hibernate Search In Action”一书。我发现它非常有帮助。

Answer 3

您的类声明为复合键（it.domain.InterventoPK.class，通过@IdClass类级别注释声明）是否只包含两个整数字段？由于您还在Intervento类上使用@Id注释了两个此类Integer字段，因此复合键类必须仅包含这些字段，并且它们必须具有相同的名称。此复合PK类也需要是Serializable。来自文档：

“将多个属性映射为@Id属性，并将外部类声明为标识符类型。此类需要是Serializable，通过@IdClass注释在实体上声明。标识符类型必须包含相同的属性作为实体的标识符属性：每个属性名称必须相同，如果实体属性是基本类型，则其类型必须相同，其类型必须是关联实体的主键类型（如果entity属性是一个关联（@OneToOne或@ManyToOne）。“

http://docs.jboss.org/hibernate/annotations/3.5/reference/en/html_single/

（在页面中搜索“复合标识符”）

Answer 4

我已经在Hibernate论坛上回答了你的问题，但是要完成我的建议：

更改映射的另一种方法是在新的getter上添加 @DocumentId ，并返回任何对象 - 甚至是字符串 - 这是两个id组件的唯一组合。（但这需要在getter和setter上定义映射）

使用JPA时，您可以避免指定@DocumentId，但您不必这样做，您仍然可以使用注释来覆盖要在索引映射上应用的标识的定义。

Hibernate Search不能使用@IdClass使用复合主键

4 个答案: