Semmle is an Eclipse plugin that allows "you to search your Java code by writing your own queries in .QL, an object-oriented query language", quite similar to SQL in fact.
In others words, you can search anything you want to know about your code by writing a simple .QL query and executing it. The results are displayed in a tree (see first screenshot).
Several charts can also be displayed.
Suite:
An example of the query that can be run:
from
Class c, string name
where
name = c.getPackage().getName()
and name.matches("abc%")
select
c.getPackage()
c
Quite similar to SQL, isn't it?
I must confess that I didn't try this plugin for the moment, but I must find some time to test it...
Some screenshots of the plugin (click to enlarge pictures):
Flux XML
