@Override
    public List<RefStoreEntry> list(final int limit, final Predicate<RefStoreEntry> filter) {
        return getListOnAllStores(limit, store ->
                store.list(limit, filter));
    }
Get all ref stores keyed by feed name

@return Map of feedName => {@link RefDataOffHeapStore}
stroom-pipeline/src/main/java/stroom/pipeline/refdata/store/offheapstore/DelegatingRefDataOffHeapStore.java