sortableroomlist.java

基于JSF开发的一个洒店管理系,具有中文

/*
 * @(#)SortableOrderList.java	1.0 05/10/10
 *
 * Copyright 2005 HUST Hotel, Inc. All rights reserved.
 */

package net.husthotel.sort;

import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
// import java.util.List;

// import javax.faces.model.ArrayDataModel;

import net.husthotel.beans.Administrator;
import net.husthotel.beans.Room;
import net.husthotel.datebase.AdminDAO;

/**
 * 用于房间表格排序的类.
 * 
 * @author icerain
 * @version 1.0
 */
public class SortableRoomList extends SortableList {

	private ArrayList<Room> roomList = null;

	private boolean markedForEdite = false;

	private boolean markedForDelete = false;

	private boolean isSortable = true;

	public SortableRoomList() {
		super("roomNum");
		try {
			roomList = new AdminDAO().queryRoomInfo();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public String flashDataAction() {
		try {
			roomList = new AdminDAO().queryRoomInfo();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;
		}
		return null;
	}

	@Override
	protected void sort(final String column, final boolean ascending) {
		// TODO Auto-generated method stub
		Comparator<Room> comparator = new Comparator<Room>() {
			public int compare(Room r1, Room r2) {
				if (column == null) {
					return 0;
				}
				if (column.equals("roomNum")) {
					return ascending ? r1.getRoomNum().compareTo(
							r2.getRoomNum()) : r2.getRoomNum().compareTo(
							r1.getRoomNum());
				}
				if (column.equals("roomType")) {
					return ascending ? r1.getRoomStyle().compareTo(
							r2.getRoomStyle()) : r2.getRoomStyle().compareTo(
							r1.getRoomStyle());
				}
				if (column.equals("roomState")) {
					return ascending ? r1.getRoomState().compareTo(
							r2.getRoomState()) : r2.getRoomState().compareTo(
							r1.getRoomState());
				} else
					return 0;
			}
		};
		Collections.sort(roomList, comparator);
	}

	@Override
	protected boolean isDefaultAscending(String s) {
		// TODO Auto-generated method stub
		return true;
	}

	public ArrayList getRoomList() {
		if (isSortable) {// ---------------
			sort(getSort(), isAscending());
		}
		isSortable = true;
		return roomList;
	}

	// ///////////////////////////////////////////////////////////////////////////////

	/**
	 * 调用AdminDAO.modifyRoomInfo(newRoom...):boolean修改房间信息.
	 * 修改成功返回"modifyRoomInfoSuccess" or 返回"modifyRoomInfoFail"
	 * 
	 * @return a string 修改成功返回"modifyRoomInfoSuccess" or 返回"modifyRoomInfoFail".
	 */
	public boolean modifyRoomInfo(Room r) {
		// Add DAO code
		try {
			if (new AdminDAO().modifyRoomInfo(r)) {
				return true;
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return false;
	}

	public String modifyRoomInfoAction() {
		for (Room r : roomList) {
			if (r.isEditable()) {
				if (!modifyRoomInfo(r))
					return "aOperateFail";
			}
		}
		return "aOperateSuc";
	}

	public String deleteRoomsAction() {
		isSortable = false; // -----------判断是否调用Sort方法
		if (!getAnyRoomsMarkedForDeletion())
			return null;

		System.out.println("SortableRoomList:0");
		int j = 0;
		ArrayList<Room> newRoomList = new ArrayList<Room>();
		Administrator admin = new Administrator();
		for (Room r : roomList) {
			if (r.isDeletable()) { // 标记为删除
				if (!admin.deleteRoom(r.getRoomNum())) {// 在数据库中删除数据
					return "aOperateFail";
				}
			} else {
				newRoomList.add(j++, r);
			}
		}
		roomList = newRoomList;

		return "aOperateSuc";
	}

	public int getNumOfRoomsMarkerForDeletion() {
		int cnt = 0;

		for (Room r : roomList) {
			if (r.isDeletable())
				++cnt;
		}
		return cnt;
	}

	public boolean getAnyRoomsMarkedForDeletion() {
		for (Room r : roomList) {
			if (r.isDeletable())
				return true;
		}
		return false;
	}

	public boolean getAnyRoomsMarkedForEditable() {
		for (Room r : roomList) {
			if (r.isEditable())
				return true;
		}
		return false;
	}

	public boolean isMarkedForDelete() {
		return markedForDelete;
	}

	public void setMarkedForDelete(boolean markedForDelete) {
		this.markedForDelete = markedForDelete;
	}

	public boolean isMarkedForEdite() {
		return markedForEdite;
	}

	public void setMarkedForEdite(boolean markedForEdite) {
		this.markedForEdite = markedForEdite;
	}

}