如何使用空间注释? [英] How to use spatial annotation?
问题描述
我在冬眠搜索中使用弹性搜索.我需要在kibana中构建图块地图.为此,我需要具有经度和纬度值的geo_point数据.我在冬眠中发现我们有@spatial注解做到这一点,但是当我使用的时候,我却遇到了异常.
I am using elastic search with hibernate search.I am having a requirement where I have to build tiles map in kibana.For that I need to have geo_point data with latitude and longitude value.I found in hibernate we have @spatial annotation to do this,but when I am using I am getting below exception.
java.lang.NullPointerException at org.hibernate.search.engine.metadata.impl.TypeMetadata$Builder.getAnalyzerReference(TypeMetadata.java:631)
我有两个模型实体,我在下面写.我正在使用休眠搜索5.7.0.Final.
I am having two model entity and I am writing it below.I am using hibernate search 5.7.0.Final.
@Entity
@Table(name = "actors", catalog = "twitter")
public class Actors implements java.io.Serializable {
Set<ActorsLocation> actorsLocation;
@OneToMany(fetch = FetchType.LAZY, mappedBy = "actors")
@Cascade(CascadeType.SAVE_UPDATE)
@IndexedEmbedded
public Set<ActorsLocation> getActorsLocation() {
return actorsLocation;
}
public void setActorsLocation(Set<ActorsLocation> actorsLocation) {
this.actorsLocation = actorsLocation;
}
}
@Entity
@Spatial
@Table(name = "actors_location", catalog = "twitter")
public class ActorsLocation implements java.io.Serializable {
private static final long serialVersionUID = 3585685166633868737L;
Long id;
@Id
@Column(name = "id",nullable = false)
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Latitude
@Field
Double lat;
@Longitude
@Field
Double lon;
@ContainedIn
Actors actors;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "user_id", nullable = false)
public Actors getActors() {
return actors;
}
public void setActors(Actors actors) {
this.actors = actors;
}
}
任何建议如何解决?
推荐答案
如我的评论中所述,NPE是一个错误: https://hibernate.atlassian.net/browse/HSEARCH-2858
As mentioned in my comment, the NPE is a bug: https://hibernate.atlassian.net/browse/HSEARCH-2858
我们应该很快修复它,但是即使上面的错误得到修复,仍然会存在另一个错误,并阻止您存储多值位置(单个"Actor"具有多个"ActorLocations"): https://hibernate.atlassian.net/browse/HSEARCH-2859 .不幸的是,该错误很难修复,我们可能需要等待主要版本.
We should fix it fairly quickly, but even if the bug above gets fixed, another one will still remain and prevent you from storing multi-valued locations (multiple "ActorLocations" for a single "Actor"): https://hibernate.atlassian.net/browse/HSEARCH-2859 . That bug is unfortunately harder to fix, we may need to wait for a major version.
解决这两个问题的一种方法是反向索引嵌入:将actor嵌入到ActorLocations中,而不是相反.然后,针对ActorLocations而不是针对Actor执行所有搜索查询.我知道这不是理想的解决方案,但是应该可以.
One way to work around both issues would be to reverse index embedding: embed the actor in your ActorLocations and not the opposite. Then, execute all your search queries against ActorLocations and not against Actor. Not an ideal solution, I know, but it should work.
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