以下是我的代码的基本概要:
@Entity
@Indexed
public class Document {
@IndexedEmbedded
@OneToMany(cascade = { PERSIST, MERGE }, mappedBy = "owner")
private final Set<Issue> issues = new LinkedHashSet<Issue>();
}
@Entity
public class Issue {
@ManyToOne
@JoinColumn(name = "owner_id")
@ContainedIn
private final Document owner;
@IndexedEmbedded
@OneToOne(cascade = ALL, optional = false)
@JoinColumn(name = "name_id")
@ForeignKey(name = "FK_issue__name_id__text_element")
private final TextElement name = new TextElement();
}
@Entity
public class TextElement {
@OneToMany(cascade = { CascadeType.ALL })
@JoinTable(
name = "text_element_paragraph",
joinColumns = { @JoinColumn(name = "text_element_id") },
inverseJoinColumns = { @JoinColumn(name = "paragraph_id") },
uniqueConstraints = {
@UniqueConstraint(
name = "UX_text_element_paragraph__paragraph_id",
columnNames = "paragraph_id"
)
}
)
@ForeignKey(
name = "FK_text_element_paragraph__text_element_id__text_element",
inverseName = "FK_text_element_paragraph__paragraph_id__paragraph"
)
@IndexedEmbedded
private List<Paragraph> paragraphs = new LinkedList<Paragraph>();
}
@Entity
public class Paragraph {
@Field(name = "data", analyze = Analyze.YES)
@Column(name = "s_data", nullable = false)
private String data;
}
我原以为lucene会对Paragraph中的数据进行索引,但当我打开Luke时,它显示"issues.name.id"(id来自Documentextends类)。为什么不对数据编制索引?谢谢:)
我还应该注意,我刚刚从CRUD服务的更新方法中删除了一个手动索引器。在那之后,一切都停止了工作,这可能是我的配置造成的吗?
通过在TextElement中添加以下内容,我可以进行搜索:
@ContainedIn
private Document owner
我认为所有实体都必须注释为@Indexed
,否则@IndexEmbedded
将无法识别要索引的实体。
顺便说一句:深度遍历可能会导致重新索引的问题。你需要回到@ContainedIn
。。。