I'm trying to use auditing to save dateCreated
and dateUpdated
in my objects, but since I set ID
manually, there's some additional work.
Following Oliver Gierke's suggestion in DATAMONGO-946 I'm trying to figure out how to correctly implement it.
As original poster in Jira task above, I've downloaded example from here https://github.com/spring-guides/gs-accessing-data-mongodb.git and modified it a bit:
package hello;
import org.springframework.data.annotation.CreatedDate;
import org.springframework.data.annotation.Id;
import org.springframework.data.annotation.LastModifiedDate;
import org.springframework.data.domain.Persistable;
import java.util.Date;
public class Customer implements Persistable<String> {
@Id
private String id;
@CreatedDate
private Date createdDate;
@LastModifiedDate
private Date lastModifiedDate;
private String firstName;
private String lastName;
private boolean persisted;
public Customer() {
}
public Customer(String firstName, String lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
public void setPersisted(boolean persisted) {
this.persisted = persisted;
}
@Override
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
@Override
public boolean isNew() {
return !persisted;
}
@Override
public String toString() {
return String.format(
"Customer[id=%s, createdDate=%s, lastModifiedDate=%s, firstName='%s', lastName='%s']",
id, createdDate, lastModifiedDate, firstName, lastName);
}
}
and
package hello;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.mongodb.config.EnableMongoAuditing;
@SpringBootApplication
@EnableMongoAuditing
public class Application implements CommandLineRunner {
@Autowired
private CustomerRepository repository;
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@Override
public void run(String... args) throws Exception {
repository.deleteAll();
// create a customer
Customer c = new Customer("Alice", "Smith");
c.setId("test_id");
// save a customer
repository.save(c);
// fetch all customers
System.out.println("Customers found with findAll():");
System.out.println("-------------------------------");
for (Customer customer : repository.findAll()) {
System.out.println(customer);
}
System.out.println();
// create another customer with same id
c = new Customer("Bob", "Smith");
c.setId("test_id");
c.setPersisted(true);
repository.save(c);
// fetch all customers
System.out.println("Customers found with findAll():");
System.out.println("-------------------------------");
for (Customer customer : repository.findAll()) {
System.out.println(customer);
}
System.out.println();
}
}
and a result of execution is this:
Customers found with findAll():
-------------------------------
Customer[id=test_id, createdDate=Wed Feb 24 00:43:47 WITA 2016, lastModifiedDate=Wed Feb 24 00:43:47 WITA 2016, firstName='Alice', lastName='Smith']
Customers found with findAll():
-------------------------------
Customer[id=test_id, createdDate=null, lastModifiedDate=Wed Feb 24 00:43:47 WITA 2016, firstName='Bob', lastName='Smith']
createdDate
becomes null
after object update.
What am I missing here? And how to correctly implement Persistable
to make auditing work properly?
Add @EnableMongoAuditing
to the main method in your spring boot application.
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