Prototype Pattern

Real-World Example

• Remember Dolly? The sheep that was cloned! Let’s not get into the details but the key point here is that it is all about cloning

Code Example

public interface Prototype<T> {
    T prototype();
}

@Data
@Builder
public class ExamplePojo implements Prototype<ExamplePojo> {
    private String field1;
    private String field2;

    @Override
    public ExamplePojo prototype() {
        return ExamplePojo.builder()
                .field1(field1)
                .field2(field2)
                .build();
    }
}

public static void main(String[] args) {
    ExamplePojo examplePojo = ExamplePojo.builder()
            .field1("hello")
            .field2("hello")
            .build();
    ExamplePojo prototype = examplePojo.prototype();
}

Resources

• https://java-design-patterns.com/patterns/prototype/