Hibernate中CascadeType的默认值

Question

我正在使用Hibernate来持久保存这个bean。

import javax.persistence.*;

@Entity
public class Person {
    @Id @GeneratedValue
    private int id;
    @Column
    private String name;
    @OneToOne
    private Address addr;
}

CascadeType的{​​{1}}是什么？

Answer 1

CascadeType 默认为空数组。见CascadeType in Annotation Type OneToOne

  

默认情况下，不会级联任何操作。

Answer 2

您可以在here查看@OneToOne的来源。默认情况下，不会级联任何操作

  /**
     * (Optional) The operations that must be cascaded to
      * the target of the association.
     *
     * <p> By default no operations are cascaded.
     */
   CascadeType[] cascade() default {};

了解详情：http://kickjava.com/src/javax/persistence/OneToOne.java.htm#ixzz1d6ZWMM2y