projectdao.java

icome

package com.icome.dao;

import java.util.Date;
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.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.criterion.Example;

import com.icome.entity.Project;

/**
 * Data access object (DAO) for domain model class Project.
 * @see com.icome.dao.Project
 * @author MyEclipse - Hibernate Tools
 */
public class ProjectDAO extends BaseHibernateDAO {

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

	//property constants
	public static final String NAME = "name";
	public static final String STATE = "state";
	public static final String DEVELOPER = "developer";
	public static final String ABOUT = "about";

    
    public void save(Project transientInstance) {
        log.debug("saving Project instance");
        try {
        	Session s = getSession();
        	Transaction t=s.beginTransaction();
            s.save(transientInstance);
            t.commit();
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }
    
	public void delete(Project persistentInstance) {
        log.debug("deleting Project instance");
        try {
        	Session s = getSession();
        	Transaction t=s.beginTransaction();
            s.delete(persistentInstance);
            t.commit();
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }
    
    public Project findById( java.lang.Integer id) {
        log.debug("getting Project instance with id: " + id);
        try {
            Project instance = (Project) getSession()
                    .get("com.icome.entity.Project", id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }
    
    
    public List findByExample(Project instance) {
        log.debug("finding Project instance by example");
        try {
            List results = getSession()
                    .createCriteria("com.icome.entity.Project")
                    .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 findByProperty(String propertyName, Object value) {
      log.debug("finding Project instance with property: " + propertyName
            + ", value: " + value);
      try {
         String queryString = "from Project 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;
      }
	}

	public List findByName(Object name) {
		return findByProperty(NAME, name);
	}
	
	public List findByState(Object state) {
		return findByProperty(STATE, state);
	}
	
	public List findByDeveloper(Object developer) {
		return findByProperty(DEVELOPER, developer);
	}
	
	public List findByAbout(Object about) {
		return findByProperty(ABOUT, about);
	}
	
    public Project merge(Project detachedInstance) {
        log.debug("merging Project instance");
        try {
            Project result = (Project) getSession()
                    .merge(detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) {
            log.error("merge failed", re);
            throw re;
        }
    }

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