this.useSession = useSession;
    }

    public void addInitFacetParam(final String key, final String value) {
        initFacetParamMap.put(value, key);
    }

    public Map<String, String> getInitFacetParamMap() {
        return initFacetParamMap;
    }

    public void addInitGeoParam(final String key, final String value) {
        initGeoParamMap.put(value, key);
    }