Ashwant Manikoth :
In this code I need the id to be the primary key and also it must be incremented.
is getter and setter required for id ?
@Entity
public class Contact {
@Id
private Integer id;
private String firstName;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
Vlad Mihalcea :
Although you could use GenerationType.AUTO
, it's not a very good idea for MySQL and Hibernate 5 because it will default to TABLE generator which is bad for performance.
So, although it will disable JDBC batch inserts, you should use IDENTITY
:
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
or you can use native
identifier generator which falls back to IDENTITY
on MySQL:
@Id
@GeneratedValue(
strategy= GenerationType.AUTO,
generator="native"
)
@GenericGenerator(
name = "native",
strategy = "native"
)
private Long id;
Guess you like
Origin http://10.200.1.11:23101/article/api/json?id=464165&siteId=1