也就是说，真正的数据库连接会相对较少关闭，但它们的池代理则会随着每个事务获取或释放。

That is, the real database connections are closed relatively infrequently, but their pooled proxies are acquired and released with every transaction.

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由于Adobe Flex构建了XML支持(即使用ecmascript for XML (e4x)来解析数据)，因此这种情况编写的代码相对较少。

Because Adobe Flex has built in support for XML (that is, it USES ECMAScript for XML (e4x) to parse the data), there is less code to write for this case.

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因此，大部分数据联合模式的实现对复杂转换功能的关注相对较少，而更强调查询优化技术。

Therefore, most implementations of the data federation pattern focus less on complex transformation capabilities and more on query optimization technologies.

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