default Map<String, FilterMeta> getActiveFilterMeta() {
        return getFilterByAsMap().values().stream()
                .filter(FilterMeta::isActive)
                .collect(Collectors.toMap(FilterMeta::getField, Function.identity()));
    }
Returns actives filter meta.
@return map with {@link FilterMeta#getField()} as key and {@link FilterMeta} as value
primefaces/src/main/java/org/primefaces/component/api/UITable.java