Create links to Named Query Definition from a parameter of a customized Class method

Hi all,

    If we use EntityManager.createNamedQuery to create a defined named query instance, we can press ctrl+left click on the query name to go to the definition of the named query. But the problem is that we are not using EntityManager directly, So we want to develop a plugin to support customized Classes using named queries, and implement the similiar function.

   However, I can't find where the origin function code is.

   So, does any one know where it is?

Meilun Sheng