Using class abstraction to allow for future extensions.
使用类抽象实现未来扩展。
Additional parameters are the extensibility mechanism for future extensions of the implementation.
其他参数是用于将来对实现进行扩展的可扩展机制。
The ButterflyXmlDocument interface abstraction allows for future extensions without changes to the existing code.
ButterflyXmlDocument接口抽象不需要改变现有代码，就可实现未来扩展。
Even if you don't need all of these advantages right away, you may still want to choose this approach to keep your options open for future extensions.
即便您不是立即需要利用所有这些优势，可能仍然会考虑选择这种方案，从而使您的选择能够应对未来的扩展。
It would be nice to at least have support for EXSLT extensions, but this is not on the roadmap -- although it has been a topic of discussion and might be a future possibility.
如果能够支持EXSLT 就更好了，但是还没有提上日程，虽然曾经是讨论的主题和一种将来的可能性。
It would be nice to at least have support for EXSLT extensions, but this is not on the roadmap -- although it has been a topic of discussion and might be a future possibility.
如果能够支持EXSLT 就更好了，但是还没有提上日程，虽然曾经是讨论的主题和一种将来的可能性。
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