[Undo Architecture] NSUndoManager is a general-purpose recorder of operations for undo and redo. NSUndoManager是一个通常目的操作记录器用于实现undo和redo. When you perform an action that changes the property values of an object (for example, by invoking a set accessor…
Undo/Redo for Qt Tree Model eryar@163.com Abstract. Qt contains a set of item view classes that use a model/view architecture to manage the relationship between data and the way it is presented to the user. The separation of functionality introduced…
Posted on 19/09/2014 by Stewart Smith So, I’ve been looking around for a while (and a few times now) for any good resources that cover a bunch of MySQL architecture and technical details aimed towards the technically proficient but not MySQL literate…
JavaScript Application Architecture On The Road To 2015 I once told someone I was an architect. It’s true in a way since I now have to design an intricate web of lies to back it up. On a serious note, I thought it might be salutary to look at the sta…
最近研究内存关系数据库的设计与实现,下面一篇为berkeley db原始两位作为的Berkeley DB设计回忆录: Conway's Law states that a design reflects the structure of the organization that produced it. Stretching that a bit, we might anticipate that a software artifact designed and initially produ…
14.2 InnoDB Concepts and Architecture 14.2.1 MySQL and the ACID Model 14.2.2 InnoDB Multi-Versioning 14.2.3 InnoDB Redo Log 14.2.4 InnoDB Undo Logs 14.2.5 InnoDB Table and Index Structures 14.2.6 InnoDB Mutex and Read/Write Lock Implementation The in…
转载.节选于 https://dev.mysql.com/doc/refman/8.0/en/innodb-in-memory-structures.html InnoDB Architecture The following diagram shows in-memory and on-disk structures that comprise the InnoDB storage engine architecture. For InnoDB: The name of the data fi…
