readerlogic.java

图书借阅系统

package com.lib.logic;

import com.lib.dao.HbmDAO;
import com.lib.actionform.ReaderActionForm;
import java.util.List;
import com.lib.vo.Reader;
import java.util.Iterator;
import com.lib.dao.DAOException;

public class ReaderLogic {
    private HbmDAO dao;
    private ReaderActionForm form;
    public ReaderLogic() {
        dao = new HbmDAO();
        dao.setAutoClose(false);
    }
    public void getReaders()
    {
      String str = "from Reader";
      List readers = dao.list(str);
      form.setReaders(readers);
  }
  public void addReader()
  {
     Reader reader = new Reader();
     reader.setQty(new Integer(0));
     reader.setReaderAddress("");
     reader.setReaderName("");
     reader.setReaderUID(null);
     form.getReaders().add(reader);
  }
  public void saveReader()
  {
    List readers = form.getReaders();
    for (Iterator iter = readers.iterator(); iter.hasNext(); ) {
      Reader item = (Reader)iter.next();
      if(item.getReaderUID().equals(new Long(0)))
      {
        item.setReaderUID(null);
      }
      try {
        dao.store(item);
      }
      catch (DAOException ex) {
        ex.printStackTrace();
      }
    }
  }
  public void deleteReader()
  {
    Long uid = form.getDeleteUID();
    try {
      dao.remove(Reader.class, uid);
    }
    catch (DAOException ex) {
      ex.printStackTrace();
    }
  }

    public void closeDAO()
    {
      dao.closeSession();
    }
  public ReaderActionForm getForm() {
    return form;
  }
  public void setForm(ReaderActionForm form) {
    this.form = form;
  }


}