Hibernate search的@ContainedIn跟@IndexedEmbedded

Hibernate search的@ContainedIn和@IndexedEmbedded
       IndexedEmbedded用此注解标注的对象为被嵌入对象，比如我在Blog类中有一个Auther auther的属性，当用@IndexedEmbedded标注此属性时，表示可以用auther.(Auther的属性)进行搜索。当@IndexedEmbedded标注的为一个对象，则在此对象中进行搜索，最终返回的是一个对象。当其标注的是一个集合(如Set<Auther> authers)时，则在所有是集合中搜索，返回的可能是多个对象。

       @ContainedIn根据官方API的解释是用于维护被嵌入对象的一致性，也就是说，为了维护当上面例子上auther改变时Blog中对应于auther的索引也更新，但在实际运用中，并不会产生这样的效果。

        比如当我添加一篇blog时，指定的auther为admin，此时可以根据auther.name为admin搜索出这篇blog。但如果此时把admin改为admins，理论上应该用admins把这篇blog搜索出来，但实际上还是用admin才能把这篇blog搜索出来。所以把admin改为admins只是在Auther中更新了索引，但在Blog中未更新索引，此时的索引需要我们手动去更新此auther对应的所有的Blog。

        至此，好像添加@ContainedIn没有启动应有的作用，根据去Hibernate Search官方论坛了解到，即使添加了@ContainedIn也需要开发者去维护双方的索引的一致性。

下面是我用到了两个实体类

@Indexed
@Entity
@Table(name="blog")
public class Blog {

	private String id;
	private String title;
	private String content;
	private Date createDate;
	private int sort;
	
	private Set<BlogType> blogTypes;
	private Auther auther;
	
	@Id
	@GeneratedValue(generator = "system-uuid")
	@GenericGenerator(name="system-uuid", strategy="uuid")
	@DocumentId
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	@Column
	@Field(name="title",index=Index.TOKENIZED,store=Store.YES)
	public String getTitle() {
		return title;
	}
	public void setTitle(String title) {
		this.title = title;
	}
	@Column
	@Field(name="content",index=Index.TOKENIZED,store=Store.NO)
	public String getContent() {
		return content;
	}
	public void setContent(String content) {
		this.content = content;
	}
	@Column
	@Field(name="date",index = Index.UN_TOKENIZED, store = Store.YES)
	@DateBridge(resolution = Resolution.DAY)
	public Date getCreateDate() {
		return createDate;
	}
	public void setCreateDate(Date createDate) {
		this.createDate = createDate;
	}
	@Field(name="sort",index = Index.UN_TOKENIZED, store = Store.YES)
	@NumericField
	@Column
	public int getSort() {
		return sort;
	}
	public void setSort(int sort) {
		this.sort = sort;
	}
	@OneToMany(mappedBy="blog")
	public Set<BlogType> getBlogTypes() {
		return blogTypes;
	}
	public void setBlogTypes(Set<BlogType> blogTypes) {
		this.blogTypes = blogTypes;
	}
	@ManyToOne
	@JoinColumn(name="autherId")
	@IndexedEmbedded
	public Auther getAuther() {
		return auther;
	}
	public void setAuther(Auther auther) {
		this.auther = auther;
	}
}

@Indexed
@Entity
@Table(name="auther")
public class Auther {

	
	private String id;
	private String name;
	private Set<Blog> blogs;
	
	@Id
	@GeneratedValue(generator = "system-uuid")
	@GenericGenerator(name="system-uuid", strategy="uuid")
	@DocumentId
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	@Column
	@Field(name="authername",index=Index.TOKENIZED,store=Store.YES)
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	@ContainedIn
	@OneToMany(mappedBy="auther",cascade = CascadeType.ALL)
	public Set<Blog> getBlogs() {
		return blogs;
	}
	public void setBlogs(Set<Blog> blogs) {
		this.blogs = blogs;
	}
}

Hibernate search的@ContainedIn跟@IndexedEmbedded

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