forumdao.java

来自「spring+hibernate+struts开发的校务oa系统」· Java 代码 · 共 176 行

package com.yondor.oa.db.forum.dao;

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

import com.yondor.oa.db.forum.iface.IForum;

/**
 * Data access object (DAO) for domain model class Forum.
 * @see com.yondor.oa.db.Forum
 * @author MyEclipse - Hibernate Tools
 */
public class ForumDAO extends HibernateDaoSupport implements IForum {

    private static final Log log = LogFactory.getLog(ForumDAO.class);

	protected void initDao() {
		//do nothing
	}
    
    /* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#save(com.yondor.oa.db.forum.dao.Forum)
	 */
    public void save(Forum transientInstance) {
        log.debug("saving Forum instance");
        try {
            getHibernateTemplate().save(transientInstance);
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }
    
	/* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#delete(com.yondor.oa.db.forum.dao.Forum)
	 */
	public void delete(Forum persistentInstance) {
        log.debug("deleting Forum instance");
        try {
            getHibernateTemplate().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }
	/* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#getCriteria(org.hibernate.criterion.DetachedCriteria)
	 */
	public List getCriteria(DetachedCriteria detachedCriteria) throws DataAccessException{
		return getHibernateTemplate().findByCriteria(detachedCriteria);
	}
	/* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#findByHql(java.lang.StringBuffer)
	 */
	public List findByHql(StringBuffer hql){
		return getHibernateTemplate().find(hql.toString());
	}
    
    /* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#findById(java.lang.Long)
	 */
    public Forum findById( java.lang.Long id) {
        log.debug("getting Forum instance with id: " + id);
        try {
            Forum instance = (Forum) getHibernateTemplate()
                    .get(Forum.class, id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }
    
    
    /* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#findByExample(com.yondor.oa.db.forum.dao.Forum)
	 */
    public List findByExample(Forum instance) {
        log.debug("finding Forum 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;
        }
    }    
    
    /* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#findByProperty(java.lang.String, java.lang.Object)
	 */
    public List findByProperty(String propertyName, Object value) {
      log.debug("finding Forum instance with property: " + propertyName
            + ", value: " + value);
      try {
         String queryString = "from Forum as model where model." 
         						+ propertyName + "= ?";
		 return getHibernateTemplate().find(queryString, value);
      } catch (RuntimeException re) {
         log.error("find by property name failed", re);
         throw re;
      }
	}

	/* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#findByForumname(java.lang.Object)
	 */
	public List findByForumname(Object forumname) {
		return findByProperty(FORUMNAME, forumname);
	}
	
	/* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#findByState(java.lang.Object)
	 */
	public List findByState(Object state) {
		return findByProperty(STATE, state);
	}
	
    /* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#merge(com.yondor.oa.db.forum.dao.Forum)
	 */
    public Forum merge(Forum detachedInstance) {
        log.debug("merging Forum instance");
        try {
            Forum result = (Forum) getHibernateTemplate()
                    .merge(detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) {
            log.error("merge failed", re);
            throw re;
        }
    }

    /* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#attachDirty(com.yondor.oa.db.forum.dao.Forum)
	 */
    public void attachDirty(Forum instance) {
        log.debug("attaching dirty Forum instance");
        try {
            getHibernateTemplate().saveOrUpdate(instance);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
    
    /* (non-Javadoc)
	 * @see com.yondor.oa.db.forum.dao.IForum#attachClean(com.yondor.oa.db.forum.dao.Forum)
	 */
    public void attachClean(Forum instance) {
        log.debug("attaching clean Forum instance");
        try {
            getHibernateTemplate().lock(instance, LockMode.NONE);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }

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