basedaoimpl.java

java实现安全系统的开源代码 java实现安全系统的开源代码

package com.starit.DAO.Impl;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.util.Assert;

import com.starit.DAO.BaseDao;

public class BaseDaoImpl extends HibernateDaoSupport implements BaseDao  {
    private static final Log log = LogFactory.getLog(BaseDaoImpl.class);
    
    /* (non-Javadoc)
	 * @see com.starit.DAO.AccountDao#save(com.starit.model.Account)
	 */
    public void save(Object transientInstance) {
        log.debug("saving Account instance");
        Assert.notNull(this.getHibernateTemplate(),"hibernateTemplate:������");
        try {
        	this.getHibernateTemplate().save(transientInstance);
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }
    
	/* (non-Javadoc)
	 * @see com.starit.DAO.AccountDao#delete(com.starit.model.Account)
	 */
	public void delete(Object persistentInstance) {
        log.debug("deleting Account instance");
        try {
        	this.getHibernateTemplate().delete(persistentInstance);
            //getSession().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }
    
    /* (non-Javadoc)
	 * @see com.starit.DAO.AccountDao#findById(java.lang.Integer)
	 */
    public Object findById( java.lang.Integer id) {
        log.debug("getting Account instance with id: " + id);
        try {
        	Object instance = (Object) this.getHibernateTemplate().get("com.starit.model.Account", id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }
    
    
    /* (non-Javadoc)
	 * @see com.starit.DAO.AccountDao#findByExample(com.starit.model.Account)
	 */
    public List findByEntity(Object instance) {
        log.debug("finding Account instance by example");
        try {
            List results = getSession()
                    .createCriteria("com.starit.model.Account")
                    .add(Example.create(instance))
            .list();
            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 findAll(Class clazz) {
        log.debug("finding Account instance by example");
        try {
            List results = this.getHibernateTemplate().loadAll(clazz);
            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.starit.DAO.AccountDao#findByProperty(java.lang.String, java.lang.Object)
	 */
    public List findByProperty(String propertyName, Object value) {
      log.debug("finding Account instance with property: " + propertyName
            + ", value: " + value);
      try {
         String queryString = "from Account as model where model." 
         						+ propertyName + "= ?";
         Query queryObject = getSession().createQuery(queryString);
		 queryObject.setParameter(0, value);
		 return queryObject.list();
      } catch (RuntimeException re) {
         log.error("find by property name failed", re);
         throw re;
      }
	}

    /* (non-Javadoc)
	 * @see com.starit.DAO.AccountDao#merge(com.starit.model.Account)
	 */
    public Object merge(Object detachedInstance) {
        log.debug("merging Account instance");
        try {
        	Object result = (Object) getSession()
                    .merge(detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) {
            log.error("merge failed", re);
            throw re;
        }
    }

    /* (non-Javadoc)
	 * @see com.starit.DAO.AccountDao#attachDirty(com.starit.model.Account)
	 */
    public void attachDirty(Object instance) {
        log.debug("attaching dirty Account instance");
        try {
            getSession().saveOrUpdate(instance);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
    
    /* (non-Javadoc)
	 * @see com.starit.DAO.AccountDao#attachClean(com.starit.model.Account)
	 */
    public void attachClean(Object instance) {
        log.debug("attaching clean Account instance");
        try {
            getSession().lock(instance, LockMode.NONE);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
}