我正在做hibernate lucene搜索。它與獲得整個域對象工作正常。但我的要求是預測。它只獲得OneToMany關聯域的單一值。所以我怎麼能得到所有@IndexedEmbedded字段的值與projection.Please協助您的建議。 下面的片段是我的代碼如何使用預測與休眠lucene搜索
@Indexed(index="Skills")
@AnalyzerDef(name = "skillAnalyzer",
tokenizer = @TokenizerDef(factory = StandardTokenizerFactory.class),
filters = {
@TokenFilterDef(factory = LowerCaseFilterFactory.class),
@TokenFilterDef(factory = SnowballPorterFilterFactory.class, params = {
@Parameter(name = "language", value = "English")
})
})
@Entity
@Table(name = "skills")
public class Skills {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "skill_id")
@Field(name="skillIdPk",index=Index.YES, analyze=Analyze.YES, store=Store.YES)
private int skillId;
@Field(index=Index.YES, analyze=Analyze.YES, store=Store.YES)
@Column(name = "skill")
private String skill;
@Column(name = "skill_type")
private String skillType = "default";
//setters & getters
}
@Indexed(index = "JobSeeker")
@AnalyzerDef(name = "jobSeekerAnalyzer", tokenizer = @TokenizerDef(factory = StandardTokenizerFactory.class), filters = {
@TokenFilterDef(factory = LowerCaseFilterFactory.class),
@TokenFilterDef(factory = SnowballPorterFilterFactory.class, params = {
@Parameter(name = "language", value = "English") }) })
@Entity
@Table(name = "jobseeker")
@Component
public class JobSeeker {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "jobseeker_id")
private long jobSeekerId;
@Column(name = "email_id", unique = true)
private String emailId;
@Column(name = "first_name")
private String firstName;
@Column(name = "middle_name")
private String middleName;
@Column(name = "last_name")
private String lastName;
@Column(name = "password")
private String password;
@IndexedEmbedded
private Set<JobSeekerSkills> jobSeekerSkills = new HashSet<JobSeekerSkills>();
//setters & getters
}
@Indexed(index="JobSeekerSkills")
@AnalyzerDef(name = "jobseekerSkillAnalyzer",
tokenizer = @TokenizerDef(factory=StandardTokenizerFactory.class),
filters = {
@TokenFilterDef(factory = LowerCaseFilterFactory.class),
@TokenFilterDef(factory = SnowballPorterFilterFactory.class, params = {
@Parameter(name = "language", value = "English")
})
})
@Entity
@Table(name="jobseeker_skills")
public class JobSeekerSkills
{
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name="jobseeker_skill_id")
private long jobSeekerSkillId;
@ManyToOne
@JoinColumn(name="jobseeker_jobseeker_id")
private JobSeeker jobSeeker;
@ManyToOne
@JoinColumn(name="skills_skill_id")
@IndexedEmbedded
private Skills skills;
//setters & getters
}
//=======================================================================
//This is my Dao code
FullTextSession fullTextSession = Search.getFullTextSession(session);
fullTextSession.createIndexer().startAndWait();
QueryBuilder qb = fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(JobSeeker.class).get();
Query query = null;
for (String string : skills) {
query = qb.keyword().onField("jobSeekerSkills.skills.skillIdPk").matching(Integer.parseInt(string)).createQuery();
}
org.hibernate.search.FullTextQuery query1 =
fullTextSession.createFullTextQuery(query, JobSeeker.class);
query1.setProjection("jobSeekerId", "jobSeekerSkills.skills.skill");
List results = query1.list();
for (int i = 0; i < results.size(); i++) {
Object[] object = (Object[]) results.get(i);
System.out.println(object[0]);
System.out.println(object[1]);
}
// List<Skills> authorName1 = (List<Skills>) firstResult[1];
// System.out.println(authorName1);
return results;
我解決了上面的問題。但現在我也遇到了同樣的錯誤,就像我在帖子中提到的那樣。我沒有找到求職者所有的技能,它只爲每位求職者提供單一技能。即使與多種技能相關聯,它也會像one-to-one一樣提供單一記錄。是否有任何方法可以使用Hibernate lucene投影獲取所有Indexembedded實體的值? –
不,您不能擁有包含求職者ID和全文查詢結果的技能集合的元組列表。你可以得到的最好的是包含求職者ID和其技能之一的元組列表,然後你必須發佈這個過程來按求職者ID對技能進行分組。如果這不是你想要的,就像我上面所說的那樣,你最好使用簡單的JPQL/HQL查詢,因爲在這種情況下你不需要全文搜索。 –