摘要:
1)Versant数据库可以直接支持复杂的业务模型:publicclassPerson{StringfirstName;StringlastName;Stringgender;Stringethnicity;Stringlanguage;//新增的节点intindex=5;Contactinfo;Locationlocation;publicStringprimaryCountry;publicStringprimaryAreaCode;HashSet<Person>friends=newHashSet<Person>();HashSet<Person>co 阅读全文