[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Templates.newTransformer synchronization
> I want to cache an instance of a Transformer (e.g. using > Templates.newTransformer()) in the application scope of a web > application (multi-threaded). Is there any synchronization > problem with this approach (using Saxon)? A Transformer represents an individual transformation and holds the working data specific to that transformation, so it must not be used to run multiple transformations at the same time. A Transformer is serially reusable (you can start one transformation after finishing another in the same thread). If you do that then the document pool (the set of documents loaded by the document() function) is going to be reused, which may or may not be the right thing to do - if successive transformations are unlikely to load the documents then it's better to clear them out, to save the memory they occupy. Michael Kay http://www.saxonica.com/
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