RedQueryBuilder fills the gap between a hand coded "quick search" and a full blown query language. A typical use is in an intranet web application where experienced users need a quick ad-hoc way to find particular data. This means they don't have to use report frameworks or ask a techie.
Currently it is freeware. We hope to resolve a couple of issues then release source
under a licence like LGPL. However there is currently no deadline for this change.
You can either generate the meta data from your database meta data
(this is what the appengine demo does) or create it by hand.
Either way you can produce JSON or use the Configuration.nocache.js JavaScript
code to create the correct objects.
The primary API to RQB is SQL so you could use RedQueryBuilderFactory to set the
initial SQL to select the correct table and optionally setup a starting
point expression.
If you then want to hide the selector you can either use CSS to hide to hide
the element with the class name "rqbFrom" or set visible to false
in the From configuration.
In general it best to use a tool designed to manipulate SQL (i.e. Parser to generate parse tree).
However RQB will always generate a "\n" before a keyword.
So the WHERE clause can be found by searching for "\nWHERE ".
