client.update(request, listener);
    }

    @Override
    public UpdateRequestBuilder prepareUpdate() {
        return client.prepareUpdate();
    }

    @Override
    public UpdateRequestBuilder prepareUpdate(final String index, final String id) {
        return client.prepareUpdate(index, id);
    }

    @Override
    public IndexRequestBuilder prepareIndex(final String index) {

                    for (final SearchHit searchHit : searchHits) {
                        final UpdateRequestBuilder updateRequest =
                                c.prepareUpdate().setIndex(index).setId(searchHit.getId()).setDoc(SESSION_ID, newSessionId);
                        builder.add(updateRequest);
                    }

                    return builder.execute();
                });