@Override
    public int hashCode() {
	final int prime = 31;
	int result = 1;
	result = prime * result + (active ? 1231 : 1237);
	result = prime * result + ((age == null) ? 0 : age.hashCode());
	result = prime * result + ((books == null) ? 0 : books.hashCode());
	result = prime * result + ((id == null) ? 0 : id.hashCode());
	result = prime * result
		+ ((idsBooksForGet == null) ? 0 : idsBooksForGet.hashCode());
	result = prime * result
		+ ((idsBooksForRej == null) ? 0 : idsBooksForRej.hashCode());
	result = prime * result + ((name == null) ? 0 : name.hashCode());
	return result;
    }