To understand the benefits, let's consider some things that we can express in requirements but not implement directly in pure OO code.

为了理解这些好处，让我们考虑一些我们可以在需求中表达但无法直接用纯oo代码实现的情况。

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However, Code Gallery is a pure storage site with no project management capabilities.

然而，代码图库只提供纯粹的存储功能，它并没有项目管理的能力。

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You cannot verify any of these constraints in pure RELAX NG code, either.

用纯粹的RELAX NG代码也不能验证这些约束。

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Performance-wise, the winner is a pre-release version of Tower Technology's TowerJ compiler, which generates a native executable from pure Java code that runs almost 25 percent faster than the fastest Java interpreter, even when the interpreter has a just-in-time compiler.

CNN: New benchmark results show Java ready for prime time on servers