adminmusiclist.java

tbuy1.1.5是在netbeans环境下用JSF技术编写的一个论坛tbuy1.1.5是在netbeans环境下用JSF技术编写的一个论坛

/*
 * 作者: 胡李青
 * qq: 31703299
 * Copyright (c) 2007 huliqing
 * 主页 http://www.tbuy.biz/
 * 你可以免费使用该软件，未经许可请勿作用于任何商业目的,如有技术问题请与本人联系！
 */

package biz.tbuy.bbs.bean;

import biz.tbuy.bbs.MusicAction;
import biz.tbuy.bbs.MusicModel;
import biz.tbuy.common.Constants;
import biz.tbuy.common.Utils;
import biz.tbuy.common.page.DataPage;
import biz.tbuy.common.page.PagedListDataModel;
import java.util.ArrayList;
import java.util.List;
import javax.faces.component.UIData;
import javax.faces.model.DataModel;

/**
 * @author huliqing
 * <p><b>qq：</b>31703299
 * <p><b>E-mail：</b><a href="mailto:[e-mail]">[e-mail]</a>
 * <p><b>Homepage：</b><a href="http://www.tbuy.biz/">http://www.tbuy.biz/</a>
 */
public class AdminMusicList extends BaseBean{
    private DataModel _musics;  // 所有未被激活的用户
    private int _pageSize = 12; // 默认的分页显示数目
    private UIData _uiMusics;   //
    
    /** Creates a new instance of AdminMusicList */
    public AdminMusicList() {
    }

    public void setMusics(DataModel musics) {
        _musics = musics;
    }
    
    public DataModel getMusics() {
        if (_musics == null) {
            _musics = new LocalDataModel(_pageSize);
        }
        return _musics;
    }
    
    public void setPageSize(int pageSize) {
        _pageSize = pageSize;
    }
    
    public int getPageSize() {
        return _pageSize;
    }
    
    public void setUiMusics(UIData uiMusics) {
        _uiMusics = uiMusics;
    }
    
    public UIData getUiMusics() {
        return _uiMusics;
    }
    
    /**
     * 删除单个选择的music信息
     */
    public String revoke() {
        MusicModel music = (MusicModel)_uiMusics.getRowData();
        if (MusicAction.revoke(music)) {
            Utils.addInfoMessage(getBundle(), "回收音乐信息成功！如果需要恢复，请到回收筒!");
            _musics = new LocalDataModel(_pageSize);
            getBBSApplication().reloadBgsounds();   // 重新载入音乐列表
            return Constants.OUT_SUCCESS;
        } else {
            Utils.addErrorMessage(getBundle(), "回收音乐信息时遇到问题！");
            return Constants.OUT_FAILURE;
        }
    }
    
    // -------------------------------------------------- page about
    
    private  DataPage getDataPage(int startRow, int pageSize) {
        int total;
        List<MusicModel> dataList = new ArrayList<MusicModel>();
        total = MusicAction.getTotalMusics();
        dataList = MusicAction.getMusicsForPage(startRow, pageSize);
        return new DataPage(total, startRow, dataList);
    }
    
    private class LocalDataModel extends PagedListDataModel {
        public  LocalDataModel(int pageSize) {
             super (pageSize);
        }
        
        public DataPage fetchPage(int startRow,int pageSize) {
             // call enclosing managed bean method to fetch the data 
             return getDataPage(startRow, pageSize);
        }
    }
}