探讨了在数据库设计中使用OneToMany关系的概念，以及如何在Perspective类中配置与PersistView类之间的映射关系。
public class Perspective{
@OneToMany(cascade=CascadeType.ALL,fetch=FetchType.EAGER)
@JoinColumn(name="perspectiveId")
public List<PersistView> getViews() {
return views;
}
}
public class PersistView{
private int perspectiveId;
}
OneToMany,其中的One指的是当前class,即Perspective,而Many是target entity,这里是PersistView，即One Perspective 对应many PersistView
@OneToMany(cascade=CascadeType.ALL,fetch=FetchType.EAGER)
@JoinColumn(name="perspectiveId")
public List<PersistView> getViews() {
return views;
}
}
public class PersistView{
private int perspectiveId;
}
OneToMany,其中的One指的是当前class,即Perspective,而Many是target entity,这里是PersistView，即One Perspective 对应many PersistView
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