chapterdao.java.svn-base

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package StoryManage.Dal;

import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

/**
 * A data access object (DAO) providing persistence and search support for
 * Chapter entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see StoryManage.Dal.Chapter
 * @author MyEclipse Persistence Tools
 */

public class ChapterDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(ChapterDAO.class);
	// property constants
	public static final String CHAPTER_TITLE = "chapterTitle";
	public static final String CONTENT = "content";
	public static final String NEXT_CHAPTER_ID = "nextChapterId";
	public static final String IS_VIP = "isVip";
	public static final String STORY_ID = "storyId";
	public static final String IS_RELEASE = "isRelease";

	protected void initDao() {
		// do nothing
	}

	public void save(Chapter transientInstance) {
		log.debug("saving Chapter instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Chapter persistentInstance) {
		log.debug("deleting Chapter instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Chapter findById(java.lang.Integer id) {
		log.debug("getting Chapter instance with id: " + id);
		try {
			Chapter instance = (Chapter) getHibernateTemplate().get(
					"StoryManage.Dal.Chapter", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Chapter instance) {
		log.debug("finding Chapter instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Chapter instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Chapter as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByChapterTitle(Object chapterTitle) {
		return findByProperty(CHAPTER_TITLE, chapterTitle);
	}

	public List findByContent(Object content) {
		return findByProperty(CONTENT, content);
	}

	public List findByNextChapterId(Object nextChapterId) {
		return findByProperty(NEXT_CHAPTER_ID, nextChapterId);
	}

	public List findByIsVip(Object isVip) {
		return findByProperty(IS_VIP, isVip);
	}

	public List findByStoryId(Object storyId) {
		return findByProperty(STORY_ID, storyId);
	}

	public List findByIsRelease(Object isRelease) {
		return findByProperty(IS_RELEASE, isRelease);
	}

	public List findAll() {
		log.debug("finding all Chapter instances");
		try {
			String queryString = "from Chapter";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Chapter merge(Chapter detachedInstance) {
		log.debug("merging Chapter instance");
		try {
			Chapter result = (Chapter) getHibernateTemplate().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Chapter instance) {
		log.debug("attaching dirty Chapter instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Chapter instance) {
		log.debug("attaching clean Chapter instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static ChapterDAO getFromApplicationContext(ApplicationContext ctx) {
		return (ChapterDAO) ctx.getBean("ChapterDAO");
	}
}