placardmanager.java

SSH 的分页...是新手的一个不错例子.

package com.placard.usermanage.controller.dwr;

import java.util.HashSet;
import java.util.List;

import com.placard.usermanage.model.Module;
import com.placard.usermanage.model.Placard;
import com.placard.usermanage.page.Page;
import com.placard.usermanage.page.PageUtil;
import com.placard.usermanage.service.ModuleService;
import com.placard.usermanage.service.PlacardService;
import com.placard.usermanage.service.impl.ModuleServiceImpl;
import com.placard.usermanage.service.impl.PlacardServiceImpl;

public class PlacardManager {
	private PlacardService placardService= new PlacardServiceImpl();
	private ModuleService moduleService= new ModuleServiceImpl();
	public List<Module> getAllModules(){
		return moduleService.getAllModules();
	}
	public List<Placard> getPlacardByPage(int startIndex , int length, Placard placardExample, int moduleId){
		if(moduleId!=0){
			placardExample.setModules(new HashSet(0));
			Module module = new Module();
			module.setId(moduleId);
			placardExample.getModules().add(module);
		}
		return placardService.getPlacardByPage(startIndex, length, placardExample);
	}
	
	public Page getPage(Placard placardExample, int moduleId, int currentPage,int pageSize,String pagerMethod){
		if(moduleId!=0){
			placardExample.setModules(new HashSet(0));
			Module module = new Module();
			module.setId(moduleId);
			placardExample.getModules().add(module);
		}
		int totalRows = placardService.getPlacardLength(placardExample);
		
		Page page = PageUtil.getPage(totalRows, currentPage, pagerMethod, pageSize);
		return page;
	}
}