1 JPA 批注参考

http://www.java2000.net/p65

版本： 5/12/06

作为 Java 企业版 5 (Java EE 5) Enterprise Java Bean (EJB) 3.0 规范的组成部分，Java 持续性 API (JPA) 显著简化了 EJB 持续性并提供了一个对象关系映射方法，该方法使您可以采用声明方式定义如何通过一种标准的

Java and unsigned int, unsigned short, unsigned byte, unsigned long, etc. (Or rather, the lack thereof)

Written by Sean R. Owens (sean at guild dot net). Share and enjoy. http://darksleep.com/player
For other fine writings on Java and other subjects, check out notablog at http://darksleep.com/notablog

In languages like C and C++, there exist a variety of sizes of integers, char, short, in