articledaoimpl.java

Jaoso新闻文章发布系统 0.9.1final 程序架构: Struts+Spring+Hibernate 主要功能： ·新闻采用在线编辑器,可以象使用word一样编辑新闻,可简繁

package jaoso.news.dao.hibernate;

import jaoso.framework.dao.BaseDAO;
import jaoso.framework.dao.MyQuery;

import jaoso.framework.exception.DAOException;

import jaoso.framework.util.MyUtils;

import jaoso.news.dao.ArticleDAO;

import jaoso.news.domain.Article;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.Serializable;

/**
 * @author Administrator
 * @version 0.9.1
 * @since 2004-5-29 Article DAO, persistent Article.
 */
public class ArticleDAOImpl implements ArticleDAO {
	/** log */
	private static Log log = LogFactory.getLog(ArticleDAOImpl.class);

	/** baseDAO */
	private BaseDAO baseDAO;

	/**
	 * Creates a new ArticleDAOImpl object.
	 */
	public ArticleDAOImpl() {
		super();
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#getArticle(java.io.Serializable)
	 */
	public final Article getArticle(final Serializable id) {
		return (Article) baseDAO.loadEntity(Article.class, id);
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#getArticleByName(java.lang.String)
	 */
	public final Article getArticleByDesc(final String name) {
		if (MyUtils.isBlank(name)) {
			return null;
		}

		Article[] articles = findArticle("from Article a where a.desc='" + name
				+ "' order by a.desc");

		if (MyUtils.isBlank(articles)) {
			return null;
		}

		return articles[0];
	}

	/**
	 * @param dao
	 *            dao
	 */
	public final void setBaseDAO(final BaseDAO dao) {
		baseDAO = dao;
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#isExist(java.lang.String)
	 */
	public final boolean isExist(final String name) {
		boolean flage = false;

		if (MyUtils.isBlank(name)) {
			return flage;
		}

		try {
			// flage = getArticleByDesc(name) != null;
			flage = ((Integer) baseDAO
					.findEntity("select count(*) from Article a where a.artTitle='"
							+ name + "'")[0]).intValue() > 0;
		} catch (DAOException e) {
			log.error("Article isExist error: ", e);
		}

		return flage;
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#isExist(java.lang.String,
	 *      java.io.Serializable)
	 */
	public final boolean isExist(final String name, final Serializable id) {
		boolean flage = false;

		if (MyUtils.isBlank(name) || (id == null)) {
			return flage;
		}

		try {
			/*
			 * Article article = getArticleByDesc(name); flage = (article !=
			 * null) && !article.getId() .equals(id);
			 */
			flage = ((Integer) baseDAO
					.findEntity("select count(*) from Article a where a.artTitle='"
							+ name + "' and a.artId<>'" + id + "'")[0])
					.intValue() > 0;
		} catch (DAOException e) {
			log.error("Article isExist error: ", e);
		}

		return flage;
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.news.dao.ArticleDAO#count(jaoso.framework.dao.MyQuery)
	 */
	public final int count(final MyQuery query) {
		return ((Integer) baseDAO.findEntity(query)[0]).intValue();
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#createArticle(jaoso.framework.domain.Article)
	 */
	public final void createArticle(final Article article) {
		baseDAO.saveEntity(article);
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#findAllArticle()
	 */
	public final Article[] findAllArticle() {
		return (Article[]) findArticle("from Article a order by a.desc");
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#findArticle(java.lang.String)
	 */
	public final Article[] findArticle(final String query) {
		MyQuery myquery = new MyQuery();
		myquery.setQueryString(query);

		return findArticle(myquery);
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#findArticle(jaoso.framework.baseDAO.MyQuery)
	 */
	public final Article[] findArticle(final MyQuery query) {
		Object[] os = baseDAO.findEntity(query);

		if (MyUtils.isBlank(os)) {
			return null;
		}

		Article[] entitys = new Article[os.length];
		System.arraycopy(os, 0, entitys, 0, os.length);

		return entitys;
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#removeArticle(jaoso.framework.domain.Article)
	 */
	public final void removeArticle(final Article article) {
		article.getCatalog().getArticles().remove(article);
		baseDAO.removeEntity(article);
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#removeArticle(java.io.Serializable)
	 */
	public final void removeArticle(final Serializable id) {
		if (id == null) {
			throw new DAOException("id can't be null");
		}

		removeArticle(getArticle(id));
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#removeArticle(java.io.Serializable[])
	 */
	public final void removeArticle(final Serializable[] ids) {
		if (ids == null) {
			throw new DAOException("id can't be null");
		}

		for (int i = 0, n = ids.length; i < n; i++) {
			removeArticle(getArticle(ids[i]));
		}
	}

	/**
	 * (non-Javadoc)
	 * 
	 * @see jaoso.framework.baseDAO.ArticleDAO#updateArticle(jaoso.framework.domain.Article)
	 */
	public final void updateArticle(final Article article) {
		baseDAO.updateEntity(article);
	}
}