I can understand this limitation: it's not usually easy to superimpose a regular lattice of information upon an XML document; such is the mismatch between extensible hierarchies and rigid tables.
我完全理解这种局限性,要将规整的信息表格添加到XML文档通常并非易事,这就是可扩展层次结构和严整表格的不匹配。
If I try to specify something else, I'll either get a compiler issue or Hadoop will error-out with a message describing a type mismatch.
如果我想指定其他内容,将会出现一个编译器问题,或Hadoop将输出一个错误消息,描述类型不匹配的消息。
In short, I don't think there is any real alternative to building a tiered implementation on top of the JVM simply because of the semantic mismatch between ruby and the JVM.
简而言之,我不认为有什么别的选择能在JVM上构建分层的Ruby实现,原因很简单,Ruby和JVM之间在语义上并不匹配。
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