hibernate search 嵌套索引-优快云博客

本文介绍Hibernate Search模块的基本配置及如何与Lucene集成实现全文检索。通过具体示例展示了如何将一对多关联关系的实体类Book和Author进行索引，并使用Lucene进行高效搜索。

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官方文档
[img]http://docs.jboss.org/hibernate/stable/search/reference/en/html/ch01s03.html[/img]

[b]最基本配置[/b]

<property name="hibernate.search.default.directory_provider" 
   value="org.hibernate.search.store.FSDirectoryProvider"/> 

<property name="hibernate.search.default.indexBase" value="/var/lucene/indexes"/>

[b]一个一对多关联的例子[/b]
[color=red]配置前[/color]

package example;
...
@Entity
public class Book {

  @Id
  @GeneratedValue
  private Integer id; 

  private String title;  

  private String subtitle; 

  @ManyToMany 
  private Set<Author> authors = new HashSet<Author>();

  private Date publicationDate;

  public Book() {
  } 

  // standard getters/setters follow here
  ...
}

package example;
...
@Entity
public class Author {

  @Id
  @GeneratedValue
  private Integer id;

  private String name;

  public Author() {
  } 

  // standard getters/setters follow here
  ...
}

配置后

package example;
...
@Entity
@Indexed
public class Book {

  @Id
  @GeneratedValue
  @DocumentId
  private Integer id;

  @Field(index=Index.TOKENIZED, store=Store.NO)
  private String title;

  @Field(index=Index.TOKENIZED, store=Store.NO)
  private String subtitle; 

  @IndexedEmbedded
  @ManyToMany 
  private Set<Author> authors = new HashSet<Author>();

  @Field(index = Index.UN_TOKENIZED, store = Store.YES)
  @DateBridge(resolution = Resolution.DAY)
  private Date publicationDate;

  public Book() {
  } 

  // standard getters/setters follow here
  ... 
}

package example;
...
@Entity
public class Author {

  @Id
  @GeneratedValue
  private Integer id;

  @Field(index=Index.TOKENIZED, store=Store.NO)
  private String name;

  public Author() {
  } 

  // standard getters/setters follow here
  ...
}