package com.lib.logic;import com.lib.dao.HbmDAO;import com.lib.actionform.ReaderActionForm;import java.util.List;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 addBook()  {     Book book = new Book();        book.setBookName("");        book.setQty(new Integer(0));        book.setTotalQty(new Integer(0));        book.setBookUID(null);        form.getBooks().add(book);  }  public void saveBook()  {    List books = form.getBooks();    for (Iterator iter = books.iterator(); iter.hasNext(); ) {      Book item = (Book)iter.next();      if(item.getBookUID().equals(new Long(0)))      {        item.setBookUID(null);      }      try {        dao.store(item);      }      catch (DAOException ex) {        ex.printStackTrace();      }    }  }  public void deleteBook()  {    Long uid = form.getDeleteUID();    try {      dao.remove(Book.class, uid);    }    catch (DAOException ex) {      ex.printStackTrace();    }  }    public void closeDAO()    {      dao.closeSession();    }}