There’s a good variety of options available for transforming xml. In addition to the standards (XSLT and XQuery), Groovy has excellent XML manipulation support with MarkupBuilders and XMLSlurpers. I wanted to know how XSLT and Groovy compare in terms of performance, but couldn’t find anything online. So, I decided to measure it myself.
JSON-oriented document stores like Mongo and Couch have really become the darlings of the web application crowd. Of course, JSON (or BSON) isn’t the only game in town. When it comes to document store formats, the other white meat if you will is XML.