>> If you are using xalan with large files look at SAX2SAX 
>> sample.  This uses streaming so it avoids building the data 
>> structure for the document as much as possiable. 
>> http://xml.apache.org/xalan-j/samples.html#sax2sax
>
>This is a popular misconception. If you supply SAX input to an XSLT
>processor, it will build its own tree internally. It will probably be
>more efficient (in both time and memory) than supplying a DOM as input,
>but the tree is still needed.
>
Do you mean it creates a complete tree for the document before processing, or just a tree containing the currently processed portion of the document?

Edward Middleton

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