Sorry for the delay Marcel, I had other issues here at work. The patch compiles and works. Now the same amount of opertions (4) are done, but they happen on the background. Well, I'm not sure about the impact of this. What if one user wants to work with the object?
One last question (I promise it :)). How can I search now on that text parsed content? I was using something like [jcr:contains(@jcr:data,phrase)] but this, as could be expected, does not work.