item.java

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/*
 * Created on 2005-9-4
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package com.bid.domain;

import java.io.Serializable;
import java.util.Date;
import java.util.Set;
import java.math.BigDecimal;

import com.bid.exceptions.*;

/**
 * @author Ma Dou
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class Item implements Serializable {

	private long id;

	private Date endDate;
	
	private String itemName;

	/**
	 * @return Returns the itemName.
	 */
	public String getItemName() {
		return itemName;
	}
	/**
	 * @param itemName The itemName to set.
	 */
	public void setItemName(String itemName) {
		this.itemName = itemName;
	}
	private Set bids;

	/**
	 *  
	 */
	public Item() {
		super();
	}

	/**
	 * @return Returns the bids.
	 */
	public Set getBids() {
		return bids;
	}

	/**
	 * @param bids
	 *            The bids to set.
	 */
	public void setBids(Set bids) {
		this.bids = bids;
	}

	/**
	 * @return Returns the endDate.
	 */
	public Date getEndDate() {
		return endDate;
	}

	/**
	 * @param endDate
	 *            The endDate to set.
	 */
	public void setEndDate(Date endDate) {
		this.endDate = endDate;
	}

	/**
	 * @return Returns the id.
	 */
	public long getId() {
		return id;
	}

	/**
	 * @param id
	 *            The id to set.
	 */
	public void setId(long id) {
		this.id = id;
	}

	public Bid placeBid(User bidder, BigDecimal bidAmount,BigDecimal maxAmount)
			throws BusinessException {
		//	 Auction still valid
		if (this.getEndDate().before(new Date())) {
			throw new BusinessException("Auction.already.ended.");
		}
//		 Auction still valid
		if (!(bidAmount.compareTo(maxAmount)>0)) {
			throw new BusinessException("Bidamount.lower.than.current");
		}
		//	 Create new Bid
		Bid newBid = new Bid(bidAmount, this, bidder);
		//	 Place bid for this Item
		this.addBid(newBid);
		return newBid;
	}

	private void addBid(Bid bid) {
		this.bids.add(bid);
	}
}