- 授权协议: Apache
- 开发语言: Java
- 操作系统: 跨平台
- 软件首页: https://github.com/ActiveJpa/activejpa
- 软件文档: https://github.com/ActiveJpa/activejpa
软件介绍
ActiveJPA基于JPA,提供了Martin Fowler所提出的活动记录模式(Active Record pattern)的Java实现。借助于ActiveJPA,模型本身会作为DAO并与数据库交互,这样就不需要额外的代码作为数据访问层了。
ActiveJPA使用到了JPA规范,因此所有JPA的ORM实现(Hibernate、EclipseLink、OpenJPA等)都可以与ActiveJPA协同使用。
示例代码:
// Get order by id Order order = Order.findById(12345L); // Get all orders for a customer that are shipped List<Order> orders = Order.where("customer_email", "dummyemail@dummy.com", "status", "shipped"); // Get all orders for the product category 'books' and paginate it Filter filter = new Filter(); filter.setPageNo(1); filter.setPerPage(25); filter.addCondition(new Condition("orderItems.product.category", Operator.eq, "books"); List<Order> orders = Order.where(filter); // Count of orders matching the filter Long count = Order.count(filter); // Get the first order matching the filter Long count = Order.first("customer_email", "dummyemail@dummy.com", "status", "shipped"); // Get the unique order matching the conditions Long count = Order.one("customer_email", "dummyemail@dummy.com", "status", "shipped"); // Dump everything List<Order> orders = Order.all(); // Delete all orders matching the filter Long count = Order.deleteAll(filter); // Check if order exists with the given identifier boolean exists = Order.exists(1234L); // Save order order.setBillingAmount(1000.0); order.persist(); // Delete order order.delete(); // Update attributes Map<String, Object> attributes = new HashMap<String, Object>(); attributes.put("billingAmount", 1000.0); order.updateAttributes(attributes); // Find order item by id within an order order.collections("order_items").findById(123L); // Search order items by filter with an order order.collections("order_items").findById(filter); .... ....
Flash第一步
陈冰 / 清华大学出版社 / 2006-3 / 45.00元
《Flash第1步:ActionScript编程篇》(珍藏版)为《Flash第一步》的ActionScript编程篇,包含后4部分内容。第3部分为ActionScript篇,你将学会像一个软件设计师那样来思考问题,并掌握在Flash中进行程序开发工作所必须具备的重要知识,还将学会运用Flash完整的编程体系来完成从简单到复杂的各种编程任务。另外,在开发一个Flash应用过程中会涉及的各种其他Web......一起来看看 《Flash第一步》 这本书的介绍吧!