如何解决休眠使一对多关系成为可能
我现在已经创建了3张桌子。学生,电话和student_phone
Student.java
@Entity
@Table(name = "STUDENT")
public class Student {
private long studentId;
private Set<Phone> studentPhoneNumbers = new HashSet<Phone>(0);
@Id
@GeneratedValue
@Column(name = "STUDENT_ID")
public long getStudentId() {
return this.studentId;
}
public void setStudentId(long studentId) {
this.studentId = studentId;
}
@OneToMany(cascade = CascadeType.ALL)
@JoinTable(name = "STUDENT_PHONE",joinColumns = { @JoinColumn(name = "STUDENT_ID") },inverseJoinColumns = { @JoinColumn(name = "PHONE_ID") })
public Set<Phone> getStudentPhoneNumbers() {
return this.studentPhoneNumbers;
}
public void setStudentPhoneNumbers(Set<Phone> studentPhoneNumbers) {
this.studentPhoneNumbers = studentPhoneNumbers;
}
}
Phone.java
@Entity
@Table(name = "PHONE")
public class Phone {
private long phoneId;
private String phoneType;
private String phoneNumber;
@Id
@GeneratedValue
@Column(name = "PHONE_ID")
public long getPhoneId() {
return this.phoneId;
}
public void setPhoneId(long phoneId) {
this.phoneId = phoneId;
}
@Column(name = "PHONE_TYPE",nullable = false,length=10)
public String getPhoneType() {
return this.phoneType;
}
public void setPhoneType(String phoneType) {
this.phoneType = phoneType;
}
@Column(name = "PHONE_NUMBER",length=15)
public String getPhoneNumber() {
return this.phoneNumber;
}
public void setPhoneNumber(String phoneNumber) {
this.phoneNumber = phoneNumber;
}
}
在上述示例中,如何审核student_phone表?
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。