http://stackoverflow.com/questions/3208821/ strategic-issue-mixing-relational-and-non-relational-db> 我先前的职位鼓励我搭配LQ和NSQL db。
两个数据库在应用环境配置和设立农业部方面的最佳做法如何?
让我们选择Derby作为“Q”和“Casandra”作为另一方。 我所寻求的是,例如图西文、xml、2个DAOs、1个在Derby实施CRUD、1个在Cassesandra和one(不是2个)使用DAO同时进行的抽样单位测试。
图里、样本(maven-)项目、建议书等。
Try Spring-data 。 (一个介绍性参考视频here)
i 《JPA》设想“春天数据”提供了一个储存方案编制模式,从每个管理领域物体的接口开始。 也许我们可以将领域转向不同的数据储存库。 i 先由本人尝试。 您可查 获取-started-with-hexachloro-data-jpa。
但是,将 no和关系结合起来将十分复杂。 但是,根据隔离水平,可以将某些类型的数据保留到一个仓库中。 i 不能确定对多个数据储存进行的交易孤立。 您说,如果需要,将文件储存到需要数据完整性的仓库和关系数据。
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