extremetablepage.java

来自「一个关于物流的管理系统」· Java 代码 · 共 59 行

package com.shunshi.ssh.entity;

import javax.servlet.http.HttpServletRequest;

import org.extremecomponents.table.context.Context;
import org.extremecomponents.table.context.HttpServletRequestContext;
import org.extremecomponents.table.core.TableConstants;
import org.extremecomponents.table.limit.Limit;
import org.extremecomponents.table.limit.LimitFactory;
import org.extremecomponents.table.limit.TableLimit;
import org.extremecomponents.table.limit.TableLimitFactory;

 public class ExtremeTablePage {  
	 
	     public static Limit getLimit(HttpServletRequest request) {  
	         Context context = new HttpServletRequestContext(request);  
	         LimitFactory limitFactory = new TableLimitFactory(context);  
	         TableLimit limit = new TableLimit(limitFactory);  
	         return limit;  
	     }  
	   
	     public static String getTableId(HttpServletRequest request) {  
	         return getTableId(request, null);  
	     }  
	   
	     public static int getTotalRowsFromRequest(HttpServletRequest request) {  
	         return getTotalRowsFromRequest(request, null);  
	     }  
	   
	     public static int getTotalRowsFromRequest(HttpServletRequest request, String cTableId) {  
	         int totalRows = -1;  
	         String tableId = getTableId(request, cTableId);  
	         tableId = tableId == null ? "" : tableId + "_";  
	         Integer totalRowsI = (Integer) request.getAttribute(tableId + TableConstants.TOTAL_ROWS);  
	         try {  
	             if (totalRowsI != null) {  
	                 totalRows = totalRowsI.intValue();  
	             } else {  
	                 String totalRowsS = request.getParameter(tableId + "totalrows");  
	                 totalRows = Integer.parseInt(totalRowsS);  
	             }  
	         } catch (Exception e) {  
	             totalRows = -1;  
	         }  
	         totalRows = totalRows < 0 ? -1 : totalRows;  
	         return totalRows;  
	     }  
	   
	     public static String getTableId(HttpServletRequest request, String cTableId) {  
	         if (cTableId != null) {  
	             return cTableId;  
	         }  
	         String tableId = request.getParameter(TableConstants.EXTREME_COMPONENTS_INSTANCE);  
	         if (tableId == null) {  
	             tableId = TableConstants.EXTREME_COMPONENTS;  
	         }  
	         return tableId;  
	     }  
	 }