Book model

Book.java

package com.knoldus;

import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Value;

import javax.annotation.concurrent.Immutable;

@Value
@Builder
@Immutable
@JsonDeserialize
@AllArgsConstructor
public final class Book {
    String isbn;
    String bookName;
    String authorName;
    float price;
}