preferences.java

这个范例程序演示了利用j2me技术开发无线服务器支持的应用。这是一个电影票订购程序

/*
 * Copyright 2001, 2002, 2003 Sun Microsystems, Inc. All Rights Reserved.
 * Except for any files in PNG format (which are marked with the filename
 * extension ".png"), GIF format (which are marked with the filename
 * extension ".gif"), or JPEG format (which are marked with the filename
 * extension ".jpg"), redistribution and use in source and binary forms,
 * with or without modification, are permitted provided that the
 * following conditions are met:
 * - Redistribution of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * - Redistribution in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * You may compile, use, perform and display the following files with
 * original Java Smart Ticket Sample Application code obtained from Sun
 * Microsystems, Inc. only:
 * - files in PNG format and having the ".png" extension
 * - files in GIF format and having the ".gif" extension
 * - files in JPEG format and having the ".jpg" extension
 * You may not modify or redistribute .png, .gif, or .jpg files in any
 * form, in whole or in part, by any means without prior written
 * authorization from Sun Microsystems, Inc. and its licensors, if any.
 * Neither the name of Sun Microsystems, Inc., the 'Java Smart Ticket
 * Sample Application', 'Java', 'Java'-based names, or the names of
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
 * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
 * MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
 * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
 * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
 * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
 * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
 * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * You acknowledge that this software is not designed, licensed or
 * intended for use in the design, construction, operation or maintenance
 * of any nuclear facility.
 * $Id: Preferences.java,v 1.2 2003/04/11 22:52:07 zull Exp $
 */
package com.sun.j2me.blueprints.smartticket.client.midp.model;

import java.io.*;
import java.util.*;
import com.sun.j2me.blueprints.smartticket.shared.midp.ApplicationException;
import com.sun.j2me.blueprints.smartticket.shared.midp.model.Synchronizable;
import com.sun.j2me.blueprints.smartticket.client.midp.ui.UIConstants;

public class Preferences {
    public static final int ORDERING_NONE = 0;
    public static final int ORDERING_COLLABORATIVE_RATING = 1;
    public static final int ORDERING_CRITICS_RATING = 21;
    public static final int FILTERING_NONE = 0;
    public static final int FILTERING_ALREADY_SEEN = 1;
    private String defaultZipCode = "";
    private String secondZipCode = "";
    private int favoriteDay = UIConstants.PREF_SUN;
    private int favoriteSeat = UIConstants.PREF_CENTER_M;
    private int updateMovieSchedule = UIConstants.AUTOMATICALLY;
    private int listMovie = UIConstants.SUGGESTED_ORDER;
    private int defaultTicketNumber = 1;
    private int conflictResolutionStrategyId = 
        Synchronizable.STRATEGY_LAST_MODIFIED_WINS;
    private boolean caching = true;
    private boolean silentlyLoggingIn = false;
    private boolean silentlyUpdating = false;
    private boolean silentlySynchronizing = false;
    private Hashtable updatableTheaterScheduleKeys = new Hashtable();

    public Preferences() {}

    public String getDefaultZipCode() {
        return defaultZipCode;
    } 

    public void setDefaultZipCode(String defaultZipCode) {
        this.defaultZipCode = defaultZipCode;
    } 

    public String getSecondZipCode() {
        return secondZipCode;
    } 

    public void setSecondZipCode(String secondZipCode) {
        this.secondZipCode = secondZipCode;
    } 

    public int getDefaultTicketNumber() {
        return defaultTicketNumber;
    } 

    public void setDefaultTicketNumber(int defaultTicketNumber) {
        this.defaultTicketNumber = defaultTicketNumber;
    } 

    public int getFavoriteDay() {
        return favoriteDay;
    } 

    public void setFavoriteDay(int favoriteDay) {
        this.favoriteDay = favoriteDay;
    } 

    public int getUpdateMovieSchedule() {
        return updateMovieSchedule;
    } 

    public void setUpdateMovieSchedule(int updateMovieSchedule) {
        this.updateMovieSchedule = updateMovieSchedule;
    } 

    public int getConflictResolutionStrategyId() {
        return conflictResolutionStrategyId;
    } 

    public void setConflictResolutionStrategyId(int conflictResolutionStrategyId) {
        this.conflictResolutionStrategyId = conflictResolutionStrategyId;
    } 

    public int getListMovie() {
        return listMovie;
    } 

    public void setListMovie(int listMovie) {
        this.listMovie = listMovie;
    } 

    public int getFavoriteSeat() {
        return favoriteSeat;
    } 

    public void setFavoriteSeat(int favoriteSeat) {
        this.favoriteSeat = favoriteSeat;
    } 

    public boolean isCaching() {
        return caching;
    } 

    public void setCaching(boolean caching) {
        this.caching = caching;
    } 

    public boolean isSilentlyLoggingIn() {
        return silentlyLoggingIn;
    } 

    public void setSilentlyLoggingIn(boolean silentlyLoggingIn) {
        this.silentlyLoggingIn = silentlyLoggingIn;
    } 

    public boolean isSilentlyUpdating() {
        return silentlyUpdating;
    } 

    public void setSilentlyUpdating(boolean silentlyUpdating) {
        this.silentlyUpdating = silentlyUpdating;
    } 

    public boolean isSilentlySynchronizing() {
        return silentlySynchronizing;
    } 

    public void setSilentlySynchronizing(boolean silentlySynchronizing) {
        this.silentlySynchronizing = silentlySynchronizing;
    } 

    public Enumeration getUpdatableTheaterScheduleKeys() {
        return updatableTheaterScheduleKeys.elements();
    } 

    public void addUpdatableTheaterScheduleKey(String theaterScheduleKey) {
        updatableTheaterScheduleKeys.put(theaterScheduleKey, 
                                         theaterScheduleKey);

        return;
    } 

    public void removeUpdatableTheaterScheduleKey(String theaterScheduleKey) {
        updatableTheaterScheduleKeys.remove(theaterScheduleKey);

        return;
    } 

    public boolean isUpdatable(String theaterScheduleKey) {
        return updatableTheaterScheduleKeys.contains(theaterScheduleKey);
    } 

    public void copy(Preferences preferences) {
        this.defaultZipCode = preferences.defaultZipCode;
        this.secondZipCode = preferences.secondZipCode;
        this.defaultTicketNumber = preferences.defaultTicketNumber;
        this.conflictResolutionStrategyId = 
            preferences.conflictResolutionStrategyId;
        this.favoriteDay = preferences.favoriteDay;
        this.favoriteSeat = preferences.favoriteSeat;
        this.updateMovieSchedule = preferences.updateMovieSchedule;
        this.listMovie = preferences.listMovie;
        this.caching = preferences.caching;
        this.silentlyLoggingIn = preferences.silentlyLoggingIn;
        this.silentlyUpdating = preferences.silentlyUpdating;
        this.silentlySynchronizing = preferences.silentlySynchronizing;
        this.updatableTheaterScheduleKeys = 
            preferences.updatableTheaterScheduleKeys;

        return;
    } 

    public void serialize(DataOutputStream dataStream) 
            throws ApplicationException {
        try {
            dataStream.writeUTF(defaultZipCode);
            dataStream.writeUTF(secondZipCode);
            dataStream.writeByte(defaultTicketNumber);
            dataStream.writeByte(conflictResolutionStrategyId);
            dataStream.writeByte(favoriteDay);
            dataStream.writeByte(favoriteSeat);
            dataStream.writeByte(updateMovieSchedule);
            dataStream.writeByte(listMovie);
            dataStream.writeBoolean(caching);
            dataStream.writeBoolean(silentlyLoggingIn);
            dataStream.writeBoolean(silentlyUpdating);
            dataStream.writeBoolean(silentlySynchronizing);
            dataStream.writeInt(updatableTheaterScheduleKeys.size());

            for (Enumeration theaterScheduleKeys = getUpdatableTheaterScheduleKeys(); 
                    theaterScheduleKeys.hasMoreElements(); ) {
                dataStream.writeUTF((String) theaterScheduleKeys.nextElement());
            } 

            return;
        } catch (IOException ioe) {
            throw new ApplicationException(ioe);
        } 
    } 

    public static Preferences deserialize(DataInputStream dataStream) 
            throws ApplicationException {
        try {
            Preferences preferences = new Preferences();

            preferences.defaultZipCode = dataStream.readUTF();
            preferences.secondZipCode = dataStream.readUTF();
            preferences.defaultTicketNumber = dataStream.readByte();
            preferences.conflictResolutionStrategyId = dataStream.readByte();
            preferences.favoriteDay = dataStream.readByte();
            preferences.favoriteSeat = dataStream.readByte();
            preferences.updateMovieSchedule = dataStream.readByte();
            preferences.listMovie = dataStream.readByte();
            preferences.caching = dataStream.readBoolean();
            preferences.silentlyLoggingIn = dataStream.readBoolean();
            preferences.silentlyUpdating = dataStream.readBoolean();
            preferences.silentlySynchronizing = dataStream.readBoolean();

            int theaterScheduleKeyCount = dataStream.readInt();

            for (int i = 0; i < theaterScheduleKeyCount; i++) {
                preferences.addUpdatableTheaterScheduleKey(dataStream.readUTF());
            } 

            return preferences;
        } catch (IOException ioe) {
            throw new ApplicationException(ioe);
        } 
    } 

}