studentmanager.java

Extjs2增删改查

package com.tcg.demo;

import static com.tcg.core.AppService.getService;
import com.tcg.core.PaginationSupport;
import com.tcg.core.Utils.Condition;
import com.tcg.core.Utils.DwrBackParams;
import com.tcg.core.Utils.QueryTranslate;
import com.tcg.demo.bean.Student;

import java.util.List;

/**
 * Created by IntelliJ IDEA.
 * User: Administrator
 * Date: 2008-10-25
 * Time: 20:14:57
 * To change this template use File | Settings | File Templates.
 */
public class StudentManager {
    public StudentManager()
    {
    }
    public void  addStudent(Student student)
    {
        getService().save(student);
    }
    public void  deleteStudent(Student student)
    {
        getService().delete(Student.class,student.getId());
    }
    public void updateStudent(List <Student> list)
    {
        for (Student student : list) {
            getService().save(student);
        }
    }
    public PaginationSupport pageListStudent(DwrBackParams params)
    {
        String hql="from Student";
        int pageSize=params.getLimit();
        int currentPage=params.getStart()/pageSize+1;
        List<Condition> conditions = params.getConditions();
        if(null!=conditions&&conditions.size()>0)
        {
            QueryTranslate queryTranslate = new QueryTranslate(hql, conditions);
            hql = queryTranslate.toString();
        }
        PaginationSupport paginationSupport = getService().findPage(hql,currentPage ,pageSize );
        return paginationSupport;
    }

    public static void main(String[] args) {
        StudentManager s = new StudentManager();
    }
}