Does anyone know how to pre populate an AEM adaptive form using XML or any other data format from a web service? A link to an example will be sufficient.
If the data XML url is not accessible anonymously, you can write your own code, fetch the data in in you jsp or java code and set that in request attribute which would be used for prefill. The above article mentions how to prefill from request attribute and has a sample.
Or is it that you want to prefill part of the form based on some user gesture like lookup address based on zip code?