I can add new fields using xpath clause in the config parameter.
But is it possible to access this kind of field in the Doc Boost groovy script?
For example if I create following field, can I access it in the Doc boost: field.xpath.meta_published_time=//META[@property='article:published_time']/@content
I only want to use the field in the Doc Boost. I do not want to store it.
I can confirm it can be used in the Doc boost.
But if the custom field does not always contain a value, then the existence of variable must be checked in the groovy script: binding.hasVariable('meta_published_time') && ...