package memento;
 
import java.util.Date;
 
public class OrderForm {
	private int clientID;
	private int productID;
	private String clientComment;
	private Date orderDate;
 
	private OrderState state;
 
	/**
	 * Класс Memento применительно к данной
	 * сущности OrderForm
	 */
	private class OrderState {
		private String comment;
		private int productID;
 
		public OrderState(String comment, int productID) {
			super();
			this.comment = comment;
			this.productID = productID;
		}
 
		public String getComment() {
			return comment;
		}
 
		public int getProductID() {
			return productID;
		}
 
	}
 
	public OrderForm(int clientID, int productID, String clientComment, Date orderDate) {
		super();
		this.clientID = clientID;
		this.productID = productID;
		this.clientComment = clientComment;
		this.orderDate = orderDate;
	}
 
	public void UpdateOrder(String comment, int prodID) {
		state = new OrderState(clientComment, productID);
 
		/* Изменения >> */
		setClientComment(comment);
		setProductID(prodID);
	}
 
	/**
	 * Восстанавливаем величины
	 */
	public void RollbackChanges() {
		setClientComment(state.getComment());
		setProductID(state.getProductID());
	}
 
 
	/* Getters / Setters >> */
	public String getClientComment() {
		return clientComment;
	}
 
	public void setClientComment(String clientComment) {
		this.clientComment = clientComment;
	}
 
	public int getProductID() {
		return productID;
	}
 
	public void setProductID(int productID) {
		this.productID = productID;
	}
 
	public int getClientID() {
		return clientID;
	}
 
	public Date getOrderDate() {
		return orderDate;
	}
 
}