managerdaoimpl.java

近几年来

package tarena.business;

import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

import org.hibernate.*;
import tarena.pojo.Manager;
import tarena.util.HibernateCallback;
import tarena.util.HibernateTemplate;

public class ManagerDAOImpl {
	public boolean save(final Session session, final Manager manager) {
		return new HibernateTemplate().save(session,new HibernateCallback() {
			public Object execute(Session session) throws HibernateException {
				
				session.save(manager);
				return null;
			};
		});
	}
	
	public boolean delete(final Session session,final Manager manager) {
		return new HibernateTemplate().delete(session,new HibernateCallback() {
			public Object execute(Session session) throws HibernateException {
				
				session.delete(manager);
				return null;
			};
		});		
	}
	
	public boolean update(final Session session, final Manager manager) {
		return new HibernateTemplate().update(session,new HibernateCallback() {
			public Object execute(Session session) throws HibernateException {
				
				session.update(manager);
				return null;
			};
		});		
	}	

	public Manager find(final Session session, final Integer id) {
		return (Manager)new HibernateTemplate().find(session,new HibernateCallback() {
			public Object execute(Session session) throws HibernateException {
				
				return session.load(Manager.class, id);
			};
		});		
	}

	public Manager find(final Session session, final String name) {
		return (Manager)new HibernateTemplate().find(session,new HibernateCallback() {
			public Object execute(Session session) throws HibernateException {
				
				Query query = session.createQuery("from Manager m where m.name='"+name+"'");
				//query.setString("name", name);
				query.setMaxResults(1);
				return query.uniqueResult();
			};
		});		
	}	
	
	public Map find(final Session session) {
		return (Map)new HibernateTemplate().find(session,new HibernateCallback() {
			public Object execute(Session session) throws HibernateException {
				
				Map results = new TreeMap();
				List list = session.createQuery("from Manager").list();
				for(Iterator it=list.iterator();it.hasNext();) {
					Manager manager = (Manager)it.next();
					results.put(manager.getId(), manager);
				}			
				return results;
			};
		});		
	}
}