Raje Raje - 1 year ago 201
Java Question

How to create DTO class

I want to create DTO class for User. my input to program is
firstname, lastname,lastname.role,group1,group2,group3.

so for each user role consist of group_1,group_2,group_3.....

In database i want to store in following format
demo,demo,demo,roleId, gorup_1_name group_1_Id
demo,demo,demo,roleId, gorup_2 and group_2_Id
demo,demo,demo,roleId, gorup_3 and group_3_Id

I was able separate all this things , but i want to assign this value to userDTO class and stored into database. basically im new to core java part. so how can create structure for this?

Answer Source

A Data Transfer Object (DTO) class is a java-bean like artifact that holds the data that you want to share between layer in your SW architecture.

For your usecase, it should look more or less like this:

public class UserDTO {
    String firstName;
    String lastName;
    List<String> groups;

    public String getFirstName() {
        return firstName;
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    public String getLastName() {
        return lastName;
    public void setLastName(String lastName) {
        this.lastName = lastName;

    public List<String> getGroups() {
        return groups;
    public void setGroups(List<String> groups) {
        this.groups = groups;
    // Depending on your needs, you could opt for finer-grained access to the group list

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