pagesortmodel.java

基于java的组号查询模块

/* $RCSfile: PageSortModel.java,v $
* Created on 2006-9-23 by zouxuemo
* $Source: /LilyDAPCVS/myAppfuse/src/web/com/lily/dap/webapp/extremecomponents/PageSortModel.java,v $
* $Id: PageSortModel.java,v 1.1 2006/11/25 02:30:28 zxm Exp $
* Copyright (c) 2005 Jiffle Ltd.  All rights reserved.
*/ 
package com.lily.dap.webapp.extremecomponents;

import java.io.Serializable;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang.StringUtils;
import org.extremecomponents.table.context.Context;
import org.extremecomponents.table.context.HttpServletRequestContext;
import org.extremecomponents.table.core.TableConstants;
import org.extremecomponents.table.filter.ExportFilterUtils;
import org.extremecomponents.table.limit.Limit;
import org.extremecomponents.table.limit.LimitFactory;
import org.extremecomponents.table.limit.Sort;
import org.extremecomponents.table.limit.TableLimit;
import org.extremecomponents.table.limit.TableLimitFactory;
import org.springframework.web.util.WebUtils;

/** 
 * 读取EC组件的参数设置，并计算需要显示的页和记录数
 * 
 * @author zouxuemo
 * @version $Revision: 1.1 $
 */
public class PageSortModel implements Serializable{
	/** Comment for <code>serialVersionUID</code> */
	private static final long serialVersionUID = -3685053210866076621L;
	
	private int pageSize = 20;				//页面大小 
	private int pageNo = 1;				//页号
	private transient int totalRows = 0;	//总记录数
	private transient int pageCount = 0;	//总页数 
	private boolean all = false;
	private Map orderMap = null;
	private Limit limit;
	private HttpServletRequest request;
	
	public PageSortModel(HttpServletRequest request, String tableId){
		this.request=request;

		if(tableId == null) tableId="ec";

		Context context = new HttpServletRequestContext(request);
		LimitFactory limitFactory = new TableLimitFactory(context, tableId);
		limit = new TableLimit(limitFactory);

		this.pageNo = limit.getPage();
		
		String rcdStr = context.getParameter(tableId + "_" + TableConstants.CURRENT_ROWS_DISPLAYED);
		if(StringUtils.isNotBlank(rcdStr)){
			this.pageSize=Integer.parseInt(rcdStr);
		}

		if(ExportFilterUtils.isExported(context)) {
			all = true;
			pageSize = 0;
		}

		orderMap = WebUtils.getParametersStartingWith(request, tableId + "_" + TableConstants.SORT);
	}

	public PageSortModel(int pageNo) {
		this.pageNo = pageNo;
	}

	public Map getOrderMap() {
		return orderMap;
	} 

	public int getPageCount() {
		return pageCount;
	}

	public void setPageCount(int pageCount) {
		this.pageCount = pageCount;
	}

	public int getPageNo() {
		return pageNo;
	}

	public void setPageNo(int pageNo) {
		this.pageNo = pageNo;
	}

	public int getPageSize() {
		return pageSize;
	}

	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}

	/** @return Returns the sort.
	 */
	public Sort getSort() {
		Sort sort = limit.getSort();
		
		if (sort == null || sort.getProperty() == null)
			return null;
		else
			return sort;
	}

	public int getTotalRows() {
		return totalRows;
	}

	public void setTotalRows(int totalRows) {
		this.totalRows = totalRows;
		if(limit != null){
			limit.setRowAttributes(totalRows, pageSize);
		}

		request.setAttribute("totalRows", new Integer(totalRows)); 
	}

	public int getRowStart() {
		return (pageNo - 1) * pageSize;
	}

	public boolean isAll() {
		return all;
	}

	public void setAll(boolean all) {
		this.all = all;
	}
}