@jahed/sparql-engine/dist/operators/update/many-consumers.js

SPARQL query engine for servers and web browsers.

// SPDX-License-Identifier: MIT
import { Consumable } from "./consumer.js";
/**
 * ManyConsumers group multiple {@link Consumable} to be evaluated in sequence
 */
export default class ManyConsumers extends Consumable {
    _consumers;
    /**
     * Constructor
     * @param consumers - Set of consumables
     */
    constructor(consumers) {
        super();
        this._consumers = consumers;
    }
    execute() {
        if (this._consumers.length === 1) {
            return this._consumers[0].execute();
        }
        return this._consumers.reduce((prev, consumer) => {
            return prev.then(() => consumer.execute());
        }, Promise.resolve());
    }
}
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