/*
 * This file belongs to Hoist, an application development toolkit
 * developed by Extremely Heavy Industries (www.xh.io | info@xh.io)
 *
 * Copyright © 2026 Extremely Heavy Industries Inc.
 */

import {Aggregator} from './Aggregator';

/** Returns the value if there is exactly one row, otherwise null. */
export class SingleAggregator extends Aggregator {
    override aggregate(rows, fieldName) {
        return rows.length === 1 ? rows[0].data[fieldName] : null;
    }
}