@jahed/sparql-engine/dist/engine/cache/bgp-cache.d.ts

SPARQL query engine for servers and web browsers.

import { Bindings } from "../../rdf/bindings.ts";
import type { EngineTriple } from "../../types.ts";
import type { PipelineStage } from "../pipeline/pipeline-engine.ts";
import type { BasicGraphPattern, BGPCache } from "./types.ts";
/**
 * An implementation of a {@link BGPCache} using an {@link AsyncLRUCache}
 */
export declare class LRUBGPCache implements BGPCache {
    private readonly _allKeys;
    private readonly _patternsPerBGP;
    private readonly _cache;
    constructor(maxSize: number, ttl: number);
    has(bgp: BasicGraphPattern): boolean;
    update(bgp: BasicGraphPattern, item: Bindings, writerID: string): void;
    get(bgp: BasicGraphPattern): Promise<Bindings[]> | null;
    getAsPipeline(bgp: BasicGraphPattern, onCancel?: () => PipelineStage<Bindings>): PipelineStage<Bindings>;
    commit(bgp: BasicGraphPattern, writerID: string): void;
    delete(bgp: BasicGraphPattern, writerID: string): void;
    count(): number;
    findSubset(bgp: BasicGraphPattern): [EngineTriple[], EngineTriple[]];
}