net.roseindia.dao

net.roseindia.dao

This package is the part of  Spring and Hibernate JPA  integration application which contains DAO service interface and it's implementation class.

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ArticleDao.java

package net.roseindia.dao;

import java.util.List;
import net.roseindia.model.Article;


public interface ArticleDao {
// To Save the article detail
public void saveArticle ( Article Article );

// To get list of all articles
public List<Article> listArticles();
}

ArticleDaoImpl.java

package net.roseindia.dao;

import java.util.Date;
import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import net.roseindia.model.Article;

import org.hibernate.Session;
import org.springframework.stereotype.Repository;

@Repository("articleDao")
public class ArticleDaoImpl implements ArticleDao {

private EntityManager em;

@PersistenceContext
public void setEntityManager(EntityManager em) {
this.em = em;
}

// To Save the article detail
public void saveArticle(Article article) {
article.setAddedDate(new Date());
em.persist(article);
}

// To get list of all articles
@SuppressWarnings("unchecked")
public List<Article> listArticles() {
Session session = (Session) em.getDelegate();
return (List<Article>) session.createCriteria(Article.class).list();
}
}