gis-tools-ts/dist/dataStore/vector/file.d.ts

A collection of geospatial tools primarily designed for WGS84, Web Mercator, and S2.

import type { S2CellId } from '../../index.js';
import type { VectorKey, VectorStore } from './index.js';
/**
 * # Vector File Store
 *
 * ## Description
 * A filesystem vector store
 *
 * ## Usage
 * ```ts
 * import { FileVector } from 'gis-tools-ts/file';
 * import type { VectorKey } from 'gis-tools-ts';
 *
 * interface Data extends VectorKey { name: string };
 *
 * const vec = new FileVector<Data>();
 * // push an entry
 * vec.push({ cell: 1n, name: 'test' });
 * vec.push({ cell: 1n, name: 'test2' });
 * // check if a key exists
 * vec.has(1n); // true
 * // get length of the store
 * console.log(vec.length); // 2
 *
 * // iterate over the store
 * for await (const entry of vec) console.log(entry);
 *
 * // close the store
 * vec.close();
 * ```
 */
export declare class FileVector<V extends VectorKey> implements VectorStore<V> {
    #private;
    /** @param fileName - the path + file name without the extension */
    constructor(fileName?: string);
    /** @returns the length of the store */
    get length(): number;
    /**
     * Push a value into the store
     * @param value - the value to store
     */
    push(value: V): void;
    /**
     * @param index - the position in the store to get the value from
     * @returns the value
     */
    get(index: number | S2CellId): Promise<V>;
    /**
     * Check if the key exists
     * @param key - the key
     * @returns true if the key exists
     */
    has(key: number | S2CellId): Promise<boolean>;
    /** Sort the store */
    sort(): Promise<void>;
    /**
     * iterate through the values
     * @yields {V} - the values iterator
     */
    values(): AsyncGenerator<V>;
    /**
     * iterate through the values
     * @returns an iterator
     */
    [Symbol.asyncIterator](): AsyncGenerator<V>;
    /** Closes the store */
    close(): void;
}
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