BookData.java

package com.springapp.mvc;

public class BookData {
    private final Book book;
    private boolean loaned;

    public BookData(Book book) {
        this.book = book;
        this.loaned = false;
    }

    public Book getBook() {
        return book;
    }

    public boolean isLoaned() {
        return loaned;
    }

    public void setLoaned(boolean loaned) {
        this.loaned = loaned;
    }
}