bookhelper.java

一个免费wap站

package com.eline.wap.resource.client;

import com.eline.wap.common.model.Page;
import com.eline.wap.resource.dao.BookDAO;
import com.eline.wap.resource.dao.ResourceDAOFactory;
import com.eline.wap.resource.exceptions.ResourceDAOSysException;
import com.eline.wap.resource.exceptions.ResourceException;
import com.eline.wap.resource.model.Book;
import com.eline.wap.resource.model.BookChapter;
import com.eline.wap.resource.model.BookCondition;

/**
 * 
 * @author Lucifer
 *
 */
public class BookHelper {

	private BookDAO dao = null;
	
	/**
	 * 
	 * @param bookId
	 * @return
	 * @throws ResourceException
	 */
	public Book getBook(int bookId) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			return dao.getBook(bookId);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException(e.getMessage());
		}
	}

	/**
	 * 
	 * @param condition
	 * @param start
	 * @param count
	 * @return
	 * @throws ResourceException
	 */
	public Page searchBooks(BookCondition condition, int start, int count) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			return dao.searchBooks(condition, start, count);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException(e.getMessage());
		}
	}
	
	/**
	 * 
	 * @param item
	 * @throws ResourceException
	 */
	public void createBook(Book item) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			dao.createBook(item);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException(e.getMessage());
		}
	}
	
	/**
	 * 
	 * @param item
	 * @throws ResourceException
	 */
	public void updateBook(Book item) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			dao.updateBook(item);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException(e.getMessage());
		}
	}

	/**
	 * 
	 * @param bookId
	 * @throws ResourceException
	 */
	public void deleteBook(int bookId) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			dao.deleteBook(bookId);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException(e.getMessage());
		}
	}

	/**
	 * 
	 * @param item
	 * @throws ResourceException
	 */
	public void createBookChapter(BookChapter item) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			dao.createBookChapter(item);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException("ResourceDAOSysException - create book chapter failure : " + e.getMessage());
		}
	}
	
	/**
	 * 
	 * @param item
	 * @throws ResourceException
	 */
	public void updateBookChapter(BookChapter item) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			dao.updateBookChapter(item);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException("ResourceDAOSysException - update book chapter failure : " + e.getMessage());
		}
	}

	public void deleteBookChapter(int chapterId) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			dao.deleteBookChapter(chapterId);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException("ResourceDAOSysException - delete book chapter failure : " + e.getMessage());
		}
	}
	
	/**
	 * 
	 * @param bookId
	 * @param start
	 * @param count
	 * @return
	 * @throws ResourceException
	 */
	public Page getBookChapters(int bookId, int start, int count) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			return dao.getBookChapters(bookId, start, count);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException("ResourceDAOSysException - get book chapters failure : " + e.getMessage());
		}
	}
	
	/**
	 * 
	 * @param chapterId
	 * @return
	 * @throws ResourceException
	 */
	public BookChapter getBookChapter(int chapterId/*, int start, int count*/) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			return dao.getBookChapter(chapterId/*, start, count*/);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException("ResourceDAOSysException - get book chapter failure : " + e.getMessage());
		}
	}
	
	public void setBookChapterSortOrder(int chapterId, int sortOrder) throws ResourceException {
		try {
			if (dao == null)
				dao = ResourceDAOFactory.getBookDAO();
			dao.setBookChapterSortOrder(chapterId, sortOrder);
		} catch (ResourceDAOSysException e) {
			throw new ResourceException("ResourceDAOSysException - get book chapter failure : " + e.getMessage());
		}
	}
}