@Override
    public Identity<IndexFieldSourceRecord, Integer> getIdentity() {
        return (Identity<IndexFieldSourceRecord, Integer>) super.getIdentity();
    }
Create a <code>stroom.index_field_source</code> table reference
stroom-index/stroom-index-impl-db-jooq/src/main/java/stroom/index/impl/db/jooq/tables/IndexFieldSource.java