For an example of the use of a federated query, see JAXRQueryFederation.java in the directory INSTALL/registry-samples/query-federation/src. This example performs two queries, a declarative query and a stored query, on every federation it finds (the database provided with the Registry contains only one). Because the federation stored in the Registry database does not have a well-known identifier value, the example uses findObjects to locate the federation.
The declarative query is the query that is performed in Using Declarative Queries: Example. The stored query is the FindAllMyObjects query.
Because the federation in the Registry database has no members, this example cannot perform the queries.