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JDO资源介绍

张茂勋
2023-12-01

发信人: jewelry (吃萝卜的狼), 信区: Java                                                                               
标  题: JDO资源介绍 (zz)                                                                                               
发信站: 日月光华 (2003年05月08日18:21:13 星期四), 站内信件                                                             

                                                                                                                       

我主要研究JDO方面的问题。                                                                                              
先介绍一下背景:JDO自1999年起就由一些经常写数据库对象映射层的富有经验的开发人                                          
员提出大纲,他们在长期的面向对象开发中进行了大量的数据库方面的处理和对象化包                                           
装,终于,多种多样的包装方式引起很多兼容性方面的问题。于是,一些主要的开发团                                           
队就联合起来,以SUN为领头羊,制定了JDO规范。它不是要取代JDBC或EJB,而是在JDBC                                          
的基础上,又可以做EJB的底层。JDO主要是面向中小型规模的项目的,不过随着产品提                                           
供商(Vendors)给出越来越多的功能(Feature),比如分布式的同步控制等等,JDO的                                          
作用也越来越大。                                                                                                       
JDO规范在Sun的富有经验的Craig Russel的带领下,经过三年的讨论,终于在2002年四                                           
月形成了第一版。目前最新版是1.0.1版,在 http://access1.sun.com/jdo/ 可以看到                                           
。                                                                                                                     
(大家应该知道,Java的规范形成时间一般都比较长,因为它太开放了,任何人都可以                                           
发表意见,参与者都要考虑)                                                                                             

目前几个做得比较好的厂商(Vendor):                                                                                   
KodoJDO http://www.solarmetric.com                                                                                     
JDOGenie http://www.hemtech.co.za/jdo/index.html                                                                       
一个免费的产品:                                                                                                       
TJDO http://http://sourceforge.net/projects/tjdo/                                                                      
                                                                                                                       
最大的JDO资源网:                                                                                                      
http://www.jdocentral.com/                                                                                             
比较成熟的讨论区:                                                                                                     
http://www.jdocentral.com/forums/index.php                                                                             
                                                                                                                       
几个比较活跃的人物:                                                                                                   
http://www.jdocentral.com/forums/index.php?s=877f580c72fa2287d4a4bfe57d50e67d                                          
&act=Members&max_results=10&sort_key=posts&sort_order=desc                                                             
其中,                                                                                                                 
RRoos:Robin Roos, 英国的咨询公司http://www.OgilviePartners.com公司的创始人                                            
rsuraparaju:美国JDO厂商http://www.ObjectFrontier.com/jdo的CTO                                                         
davejordan: David Jordan, 美国咨询公司http://www.objectidentity.com的创始人,                                          
全球第七个使用C语言的人                                                                                                
DEzzio:David Ezzio,美国资深技术专家                                                                                  
davidtinker:David Thinker,南非JDO厂商http://www.hemtech.co.za的CTO,其JDOGe                                          
nie厂品做得不错,不过比Kodo稍差                                                                                        
sun2bin:呵呵,就是本人                                                                                                
EricSamson:Eric Samson,法国JDO厂商http://www.libelis.com/的CTO                                                       
wbiggs:Wes Biggs,免费JDO产品http://xorm.sourceforge.net/的技术负责人                                                 
matthewadams:Matthew Adams,美国JDO专家,http://geocities.com/matthewadams                                            
HeikoB:Heiko Bobzin,美国对象数据库FastObjects公司的JDO产品的技术负责人                                               
                                                                                                                       
下面再列几篇我在JDOCentral论坛上的比较有价值的文章:                                                                   
1、一个解决数据字段长度限制的JDO工具代码                                                                               
http://www.jdocentral.com/forums/index.php?act=ST&f=11&t=564&s=877f580c72fa22                                          
87d4a4bfe57d50e67d                                                                                                     
                                                                                                                       
2、一个以JDBC Driver方式访问DataSource的工具类                                                                         
http://www.jdocentral.com/forums/index.php?act=ST&f=11&t=547&s=877f580c72fa22                                          
87d4a4bfe57d50e67d                                                                                                     
                                                                                                                       
3、关于JSP2.0规范的讨论(实际上已经在2.0计划内,参见JSP规范的pdf文件第20章)                                           
http://www.jdocentral.com/forums/index.php?act=ST&f=10&t=398&s=877f580c72fa22                                          
87d4a4bfe57d50e67d                                                                                                     
                                                                                                                       
                                                                                                                       
--                                                                                                                     
兔子:快,快吃萝卜!                                                                                                   
小狼:萝卜不好吃~~                                                                                                   
兔子:萝卜有营养,又防癌又抗衰老                                                                                       
(兔子做塞萝卜入狼嘴状)                                                                                               
(兔子做生气噘嘴状)                                                                                                   
※ 来源:·日月光华 bbs.fudan.edu.cn·[FROM: 10.89.100.229]                                                             

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