文件名称:
D语言的ORM框架HibernateD.zip
开发工具:
文件大小: 86kb
下载次数: 0
上传时间: 2019-07-17
详细说明： HibernateD 是 D 语言的 ORM 框架，类似 Java 的 Hibernate，示例代码：import hibernated.core; // Annotations of entity classes class User { long id; string name; Customer customer; ManyToMany // cannot be inferred, requires annotation LazyCollection!Role roles; } class Customer { int id; string name; // Embedded is inferred from type of Address Address address; Lazy!AccountType accountType; // ManyToOne inferred User[] users; // OneToMany inferred this() { address = new Address(); } } Embeddable class Address { string zip; string city; string streetAddress; } class AccountType { int id; string name; } class Role { int id; string name; ManyToMany // w/o this annotation will be OneToMany by convention LazyCollection!User users; } // create metadata from annotations EntityMetaData schema = new SchemaInfoImpl!(User, Customer, AccountType, T1, TypeTest, Address, Role, GeneratorTest); // setup DB connection factory MySQLDriver driver = new MySQLDriver(); string url = MySQLDriver.generateUrl("localhost", 3306, "test_db"); string[string] params = MySQLDriver.setUserAndPassword("testuser", "testpasswd"); DataSource ds = ConnectionPoolDataSourceImpl(driver, url, params); // create session factory Dialect dialect = new MySQLDialect(); SessionFactory factory = new SessionFactoryImpl(schema, dialect, ds); scope(exit) factory.close(); // Create schema if necessary { // get connection Connection conn = ds.getConnection(); scope(exit) conn.close(); // create tables if not exist factory.getDBMetaData().updateDBSchema(conn, false, true); } // Now you can use HibernateD // create session Session sess = factory.openSession(); scope(exit) sess.close(); // use session to access DB // read all users using query Query q = sess.createQuery("FROM User ORDER BY name"); User[] list = q.list!User(); // create sample data Role r10 = new Role(); r10.name = "role10"; Role r11 = new Role(); r11.name = "role11"; Customer c10 = new Customer(); c10.name = "Customer 10"; User u10 = new User(); u10.name = "Alex"; u10.customer = c10; u10.roles = [r10, r11]; sess.save(r10); sess.save(r11); sess.save(c10); sess.save(u10); // load and check data User u11 = sess.createQuery("FROM User WHERE name=:Name"). setParameter("Name", "Alex").uniqueResult!User(); assert(u11.roles.length == 2); assert(u11.roles[0].name == "role10" || u11.roles.get()[0].name == "role11"); assert(u11.roles[1].name == "role10" || u11.roles.get()[1].name == "role11"); assert(u11.customer.name == "Customer 10"); assert(u11.customer.users.length == 1); assert(u11.customer.users[0] == u10); assert(u11.roles[0].users.length == 1); assert(u11.roles[0].users[0] == u10); // remove reference u11.roles.get().remove(0); sess.update(u11); // remove entity sess.remove(u11); 标签：HibernateD
(系统自动生成,下载前可以参看下载内容)
下载文件列表
相关说明
- 本站资源为会员上传分享交流与学习,如有侵犯您的权益,请联系我们删除.
- 本站是交换下载平台，提供交流渠道，下载内容来自于网络，除下载问题外，其它问题请自行百度。
- 本站已设置防盗链，请勿用迅雷、QQ旋风等多线程下载软件下载资源，下载后用WinRAR最新版进行解压.
- 如果您发现内容无法下载，请稍后再次尝试；或者到消费记录里找到下载记录反馈给我们.
- 下载后发现下载的内容跟说明不相乎，请到消费记录里找到下载记录反馈给我们，经确认后退回积分.
- 如下载前有疑问，可以通过点击"提供者"的名字，查看对方的联系方式，联系对方咨询.
相关搜索:
