随笔分类 -  Data Persistence

摘要:This article discusses the design of the enhanced platform based on Plato framework that is potentially running on a C/S setting and enables collaborated editing of canvas work. 阅读全文
posted @ 2014-04-18 13:48 quanben 阅读(232) 评论(0) 推荐(0)
摘要:IT学习无止境。以下整理一下计划学习和研究的东西。语言学习,重点关注C#(不能说掌握得差不多了,但继续作为主力编程工具需要不断提高)和C++11的进展,补一些boost的课(有条件的话看boost在新C++条件下如何演进)和C++遗忘的东西,回顾设计模式在这两个语言中的应用。留半个眼睛给Functional Programming和并发编程。有空粗略思考一些语言设计、对象模型、泛型和元编程、编译实现的问题。最近我发现越发对C++这门语言不感冒了。个人感觉,除了一些计算密集性能要求和架构要求有些紧张的场景,C++不是一个好的选择。对于前端界面应用,越来越没有C++什么事,对于大型的复杂的前端应用 阅读全文
posted @ 2012-09-24 15:16 quanben 阅读(187) 评论(0) 推荐(0)
摘要:What ISession.Flush() generally doesISession.Flush() updates OO side changes to the framework but not to the database; this has at least the following effects1. Internal flags change so that IsDirty() is always set to false2. updates internal flags/states of the framework so that it's consistent 阅读全文
posted @ 2011-12-21 07:30 quanben 阅读(141) 评论(0) 推荐(0)
摘要:This is a follow-up article to the previous one on the same topic in Chinese. Recent blogs are all expected to be in English since IME and language packs are not ready on the Ubuntu Linux that have newly been installed and I don't bother installing them until I've tried most of its exiting n 阅读全文
posted @ 2011-11-30 11:36 quanben 阅读(195) 评论(0) 推荐(0)
摘要:工作需要使用NHibernate,用于比较庞大的关系模型。以下是使用过程中遇到问题的汇总(不断更新中)。1. 近日遇到"persistence context reported no row snapshot for (某个entity)"问题,通过反复分析,发现其原因是对应entity有一个以one-to-many联系之的owner没有保存(map和persist)。而且这个owner是从一个abstract class继承下来,这个class被标记了persist并被我做的拾取器收到并保存,而这个entity对应的类(扩展了这个abstract class)没有保存到数 阅读全文
posted @ 2011-11-11 19:27 quanben 阅读(726) 评论(0) 推荐(0)
摘要:所谓《中文Mainframe宝典合集》,是指一部中文版的关于IBM Mainframe相关知识和技术的综合参考文档。它的设计确保所有在UC参加学习过Mainframe并对其有基本概念的中国学生能够通过这部参考文献集不借助其他任何学习资料能够迅速定位知识点或整理出IBM的相关标准参考文档的大致搜寻路径;另一方面,它旨在为所有具有基本计算机系统概念的以中文为母语的科研和技术人员能根据他们的基本背景知识迅速了解Mainframe为课程或任何网上资料所公开而为笔者所了解并复原出的技术规则和设计原理。因而这个文档的设计原则是以计算机系统的组成原理和逻辑关系作为基础和脉络而展开,从根本上说是在剖析系统的合 阅读全文
posted @ 2011-09-25 19:29 quanben 阅读(347) 评论(0) 推荐(0)
摘要:To continue the topic of why Java still there since the advent of .NET 2.0; Recently as required by the work, I had to have a look at the Hibernate technology. And as the projects we are on are either .NET or native Visual C++ based, if we need to do any data mapping, we have to find technologies th 阅读全文
posted @ 2011-07-05 21:21 quanben 阅读(172) 评论(0) 推荐(0)