update mongodb document using java object - mongodb

Question

I have one User class like this:
#Document(collection = "users")
public class User {
#Id
private String id;
String username;
String password;
String description;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
#Override
public String toString() {
return "User[id=" + id + ", username=" + username + ", password=" + password + ", description"
+ description + "]";
}
}
I am able to perform limited update. Like:
Query searchQuery = new Query(Criteria.where("id").is("shashi"));
mongoDBClient.updateFirst(searchQuery, Update.update("password", "newpassword"), User.class);
Now if I want to update rest other fields(username and description) of User class, I need to call updateFirst method so many times.
I want to avoid this and pass the entire object to updateFirst method. Something like:
mongoDBClient.updateFirst(searchQuery, Update.update(userObject), User.class);
Basically, I want to edit all/multiple fields in one call using java POJO object. How I can achieve this?

Answer 1

Edit/All multiple fields in one call using java POJO object, can be done as shown below
1) Query the document which need to be updated --> we get the java object
2) Do all modifications in the java object
3) Save the object
Code:
Query query = new Query();
query.addCriteria(Criteria.where("id").is("shashi"));
User user = mongoOperation.findOne(query, User.class);
//modify the user object with the properties need to be updated
//Modify password and other fields
user.setPassword("newpassword");
user.setDescription("new description");
user.setUsername("NewUserName");
//save the modified object
mongoOperation.save(user);