sparnatural
Version:
Visual client-side SPARQL query builder and knowledge graph exploration tool
42 lines (41 loc) • 1.96 kB
TypeScript
import { Catalog } from "../../settings/Catalog";
import { UrlFetcher } from "./UrlFetcher";
export interface SparqlHandlerIfc {
executeSparql(sparql: string, callback: (data: any) => void, errorCallback?: (error: any) => void): void;
}
export declare class SparqlHandlerFactory {
protected lang: string;
protected localCacheDataTtl: any;
protected extraHeaders: Map<string, string>;
protected customizedSparqlHandler: SparqlHandlerIfc;
protected catalog?: Catalog;
constructor(lang: string, localCacheDataTtl: any, extraHeaders: Map<string, string>, customizedSparqlHandler?: SparqlHandlerIfc, catalog?: Catalog);
buildSparqlHandler(endpoints: string[]): SparqlHandlerIfc;
}
/**
* Executes a SPARQL query against a remote endpoint at a known URL
*/
export declare class EndpointSparqlHandler implements SparqlHandlerIfc {
urlFetcher: UrlFetcher;
sparqlEndpointUrl: any;
constructor(urlFetcher: UrlFetcher, sparqlEndpointUrl: any);
buildUrl(sparql: string): string;
buildParameters(sparql: string): string;
executeSparqlPost(sparql: string, callback: (data: {}) => void, errorCallback?: (error: any) => void): void;
executeSparqlGet(sparql: string, callback: (data: {}) => void, errorCallback?: (error: any) => void): void;
executeSparql(sparql: string, callback: (data: {}) => void, errorCallback?: (error: any) => void): void;
}
/**
* Executes a SPARQL query against multiple endpoints
* and returns the results merged in a single result set
* with an extra column to express the source
*/
export declare class MultipleEndpointSparqlHandler implements SparqlHandlerIfc {
urlFetcher: UrlFetcher;
catalog: Catalog;
addExtraEndpointColumn: boolean;
extraColumnName: string;
lang: string;
constructor(urlFetcher: UrlFetcher, catalog: Catalog, lang: string);
executeSparql(sparql: string, callback: (data: any) => void, errorCallback?: (error: any) => void): void;
}