Plugable external resources on UIMA RUTA

Currently UIMA ruta has WORDLIST and WORDTABLE, it is a list or table of text items that can used to detect occurrences. This is nice feature and very powerfull, however there is no way to plug my own WORDLIST/WORDTABLE implementation, for example WORDLIST that find matches in database table or in lucene index etc...

I think that the WORDLIST/WORTABLE implementation can be defined as UIMA external resource, in resources section, and then pass a reference to WORDLIST/WORDTABLE in ruta script. The other option is to specify the class that implements WORDLIST/WORDTABLE to RutaEnvionment and instantiate it in ruta environment using Reflection.