我有下面的模型,我试图使用Hibernate Search进行全文搜索。
我需要搜索关于"关于"具有UserRole.PROFESSIONIST角色的所有用户的字段。
这是模型:
@Entity
@Indexed
public class User
{
@Id
@GeneratedValue
Long id;
...
String about;
@IndexedEmbedded
@Enumerated(EnumType.STRING)
@ElementCollection(targetClass = UserRole.class, fetch = FetchType.EAGER)
@JoinTable(name = "user_roles", joinColumns = {@JoinColumn(name = "user_id")})
List<UserRole> roles = new ArrayList<>();
}
这是查询:
List results = new ArrayList<>();
org.apache.lucene.search.Query containText = queryBuilder
.keyword()
.onField("about")
.matching(text)
.createQuery();
org.apache.lucene.search.Query isProfessionist = queryBuilder
.keyword()
.onFields("roles")
.matching(UserRole.PROFESSIONIST.toString())
.createQuery();
org.apache.lucene.search.Query query = queryBuilder
.bool()
.must(containText)
.must(isProfessionist)
.createQuery();
org.hibernate.search.jpa.FullTextQuery jpaQuery = fullTextEntityManager.createFullTextQuery(query, User.class);
results = jpaQuery.getResultList();
当我执行查询时,我收到此错误:
org.hibernate.search.exception.SearchException: Unable to find field roles in com.plusimple.core.models.User
我正在尝试做什么?如果是的话,我做错了什么?
答案 0 :(得分:3)
由于目标类是枚举,因此您必须向要搜索的属性添加@Field
注释(嵌入完整实体时不需要这样做,因为它们有自己的子项可搜索的属性。)
示例:
@IndexedEmbedded
@Field(name="roles", analyze=Analyze.NO, index=Index.YES)
@Enumerated(EnumType.STRING)
@ElementCollection(targetClass = UserRole.class, fetch = FetchType.EAGER)
@JoinTable(name = "user_roles", joinColumns = {@JoinColumn(name = "user_id")})
List<UserRole> roles = new ArrayList<>();