subjectmanager.java

OA典型例子

package com.sure.oa.dict;

import com.sure.businessmodel.Page;
import com.sure.businessmodel.UpdateException;
import com.sure.businesslogic.AlreadyExistsException;
import com.sure.businesslogic.NotFoundException;
import com.sure.dataabstraction.DBManager;
import com.sure.dataabstraction.DBPoolException;
import com.sure.util.StringUtils;

import java.sql.SQLException;
import java.sql.Connection;
import java.util.Vector;
/**
 * <p>Title: OA</p>
 * <p>Description: 国办项目</p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: sure</p>
 * @author mengzy
 * @version 1.0
 */

public class subjectManager {

  public subjectManager() {
  }

  /**
   * 根据unitId获得主题信息详情
   */
  public Subject getSubject(int unitId) throws SQLException,DBPoolException, NotFoundException {
      Connection cn = DBManager.getConnection();
      try {
          String where = "Where subId = " + unitId;
          Vector beans = SubjectPersistent.load(cn, where);
          Subject bean = (Subject)beans.firstElement();
          return bean;
      }catch (SQLException sqle) {
          throw new NotFoundException();
      } finally {
          cn.close();
      }
  }



  public Page getSubjectList(int start,int unitId) throws SQLException,DBPoolException {
      Connection cn = DBManager.getConnection();
      try{
          String where = "where  unitId=" + unitId + "  order by subId";
          Page p = SubjectPersistent.load(cn, start, 10, where);
          return p;
      }finally {
          cn.close();
      }
  }


  /**
   * 显示某个单位的所有主题信息（不是分页形式）
   */
  public static  Vector getSubjectList(int unitId) throws SQLException,
          DBPoolException {
      Connection cn = DBManager.getConnection();
      try{
          String where = "where  unitId=" + unitId + "";
          Vector v = SubjectPersistent.load(cn, where);
          return v;
      }finally {
          cn.close();
      }
  }

  /**
   * 保存主题信息
   */
  public int saveSubject(Subject p) throws SQLException,DBPoolException, UpdateException, NotFoundException {
      Connection cn = DBManager.getConnection();
      String subject = StringUtils.getSQLencode(p.getSubject());
      String where = "Where  Subject = '" + subject + "'  and unitId=" +
                     p.getUnitId() + " and subId<>" + p.getSubId();
      int intResult = SubjectPersistent.getCount(cn, where);
      if (intResult > 0){
          throw new UpdateException("本单位中已经存在" + subject + "这个主题信息!");
      }
      int pId = p.getSubId().intValue();
      int retval = 0;
      try{
          SubjectPersistent pb = new SubjectPersistent(p);
          if (pId == 0){
            retval = 2;
          }else{
            pb.setRecordExists(true);
            retval = 3;
          }
          pb.persist(cn);
      }finally {
          cn.close();
      }
    return retval;
  }

  /**
   * 删除主题信息
   */
  public void  delSubject(int subId) throws SQLException, DBPoolException, NotFoundException {
        Connection cn = DBManager.getConnection();
        try {
           String where = "Where subId = " + subId;
           SubjectPersistent.delete(cn, where);
        }catch (SQLException sqle) {
            throw new  NotFoundException();
        } finally {
            cn.close();
        }
    }

}