booklogic.java

来自「图书借阅系统」· Java 代码 · 共 73 行

package com.lib.logic;

import com.lib.dao.HbmDAO;
import com.lib.actionform.BookActionForm;
import java.util.List;
import com.lib.vo.Book;
import java.util.Iterator;
import com.lib.dao.DAOException;

public class BookLogic {
  private HbmDAO dao;
    private BookActionForm form;
    public BookLogic() {
        dao = new HbmDAO();
        dao.setAutoClose(false);
    }
    public void getBooks()
    {
      String str = "from Book";
      List books = dao.list(str);
      form.setBooks(books);
  }
  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();
    }
  public BookActionForm getForm() {
    return form;
  }
  public void setForm(BookActionForm form) {
    this.form = form;
  }


}