Builder Pattern Archives - Huong Dan Java

Builder Pattern with Project Lombok

Normally, when we need to create an object with a lot of its information, we can use the Builder Pattern for that purpose. For example, I have a Student class as below:

package com.huongdanjava.lombok;

public class Student {

    private String firstName;
    private String middleName;
    private String lastName;
    private String country;

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    public String getMiddleName() {
        return middleName;
    }

    public void setMiddleName(String middleName) {
        this.middleName = middleName;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    public String getCountry() {
        return country;
    }

    public void setCountry(String country) {
        this.country = country;
    }

    @Override
    public String toString() {
        return "Student{" +
                "firstName='" + firstName + '\'' +
                ", middleName='" + middleName + '\'' +
                ", lastName='" + lastName + '\'' +
                ", country='" + country + '\'' +
                '}';
    }
}

package com.huongdanjava.lombok;

public class Student {

private String firstName;

private String middleName;

private String lastName;

private String country;

public String getFirstName() {

return firstName;

}

public void setFirstName(String firstName) {

this.firstName = firstName;

}

public String getMiddleName() {

return middleName;

}

public void setMiddleName(String middleName) {

this.middleName = middleName;

}

public String getLastName() {

return lastName;

}

public void setLastName(String lastName) {

this.lastName = lastName;

}

public String getCountry() {

return country;

}

public void setCountry(String country) {

this.country = country;

}

@Override

public String toString() {

return "Student{" +

"firstName='" + firstName + '\'' +

", middleName='" + middleName + '\'' +

", lastName='" + lastName + '\'' +

", country='" + country + '\'' +

'}';

}

To build this object with all information using the Builder Pattern, we… Read More