public static SearchRequest replaceExpressionParameters(final SearchRequest searchRequest) {
        SearchRequest result = searchRequest;
        if (searchRequest != null && searchRequest.getQuery() != null) {
            final Query query = replaceExpressionParameters(searchRequest.getQuery());
            result = searchRequest.copy().query(query).build();
        }
        return result;
    }
@return True if there are at least one enabled term under the expressionOperator
stroom-query/stroom-query-api/src/main/java/stroom/query/api/ExpressionUtil.java