hibernatedao.java

来自「servlet做的学员管理系统的软代码大家咄咄支持」· Java 代码 · 共 52 行

package com.allan.ums.util;

import org.hibernate.Session;

public class HibernateDao {
	protected HibernateTemplate hibernateTemplate;

	public HibernateDao() {
		hibernateTemplate = new HibernateTemplate();
	}

	public void insert(final Object entity) {
		hibernateTemplate.execute(new HibernateCallback() {
			@Override
			public Object execute(Session session) {
				session.save(entity);
				return null;
			}
		});
	}

	public void update(final Object entity) {
		hibernateTemplate.execute(new HibernateCallback() {
			@Override
			public Object execute(Session session) {
				session.update(entity);
				return null;
			}
		});
	}

	public void delete(final Class entityClass, final int id) {
		hibernateTemplate.execute(new HibernateCallback() {
			@Override
			public Object execute(Session session) {
				Object entity = session.get(entityClass, id);
				session.delete(entity);
				return null;
			}
		});
	}

	public Object selectById(final Class entityClass, final int id) {
		return hibernateTemplate.execute(new HibernateCallback() {
			@Override
			public Object execute(Session session) {
				return session.get(entityClass, id);
			}
		});
	}
}