Hibernate中CascadeType的默认值

Question

我正在使用Hibernate来持久化这个bean.

import javax.persistence.*;

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

有什么CascadeType用addr？

Answer 1

CascadeType 默认为空数组.请参阅注释类型OneToOne中的CascadeType

默认情况下,不会级联任何操作.

Answer 2

你可以@OneToOne在这里查看来源.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 {};

阅读更多:http://kickjava.com/src/javax/persistence/OneToOne.java.htm#ixzz1d6ZWMM2y