iBATIS缓存介绍

iBATIS 缓存介绍 Mov，2010-01-18整理 一．缓存介绍 ............................................................................................2 1.1 缓存对象.......................................................................................2 1.2 缓存介质[保存在哪里] ......................................................................2 1.2.1 内存 ....................................................................................2 1.2.2 硬盘 ....................................................................................2 1.2.3 数据库 .................................................................................2 1.3 命中率 .........................................................................................2 1.4 最大保存元素数量 ...........................................................................3 1.5 缓存更新策略 .................................................................................3 1.5.1 FIFO[first in first out] ...........................................................3 1.5.2 LFU[Less Frequently Used] ...................................................3 1.5.3 LRU[Least Recently Used].....................................................3 1.6 本地缓存VS 远程缓存 ......................................................................3 二．iBATIS 高速缓存介绍 ............................................................................4 2.1 iBATIS 高速缓存的关注点 .................................................................4 2.2 iBATIS 对高速缓存管理的帮助 ...........................................................4 2.3 iBATIS 高速缓存和传统 O/RM 高速缓存的区别 .......................................4 三． 配置 iBATIS 缓存 ................................................................................4 3.1 cacheModel 标签 ...........................................................................4 3.1.1 cacheModel 标签的属性 .............................