@tanstack/query-core/build/modern/queryCache.js

The framework agnostic core that powers TanStack Query

// src/queryCache.ts
import { hashQueryKeyByOptions, matchQuery } from "./utils.js";
import { Query } from "./query.js";
import { notifyManager } from "./notifyManager.js";
import { Subscribable } from "./subscribable.js";
var QueryCache = class extends Subscribable {
  constructor(config = {}) {
    super();
    this.config = config;
    this.#queries = /* @__PURE__ */ new Map();
  }
  #queries;
  build(client, options, state) {
    const queryKey = options.queryKey;
    const queryHash = options.queryHash ?? hashQueryKeyByOptions(queryKey, options);
    let query = this.get(queryHash);
    if (!query) {
      query = new Query({
        cache: this,
        queryKey,
        queryHash,
        options: client.defaultQueryOptions(options),
        state,
        defaultOptions: client.getQueryDefaults(queryKey)
      });
      this.add(query);
    }
    return query;
  }
  add(query) {
    if (!this.#queries.has(query.queryHash)) {
      this.#queries.set(query.queryHash, query);
      this.notify({
        type: "added",
        query
      });
    }
  }
  remove(query) {
    const queryInMap = this.#queries.get(query.queryHash);
    if (queryInMap) {
      query.destroy();
      if (queryInMap === query) {
        this.#queries.delete(query.queryHash);
      }
      this.notify({ type: "removed", query });
    }
  }
  clear() {
    notifyManager.batch(() => {
      this.getAll().forEach((query) => {
        this.remove(query);
      });
    });
  }
  get(queryHash) {
    return this.#queries.get(queryHash);
  }
  getAll() {
    return [...this.#queries.values()];
  }
  find(filters) {
    const defaultedFilters = { exact: true, ...filters };
    return this.getAll().find(
      (query) => matchQuery(defaultedFilters, query)
    );
  }
  findAll(filters = {}) {
    const queries = this.getAll();
    return Object.keys(filters).length > 0 ? queries.filter((query) => matchQuery(filters, query)) : queries;
  }
  notify(event) {
    notifyManager.batch(() => {
      this.listeners.forEach((listener) => {
        listener(event);
      });
    });
  }
  onFocus() {
    notifyManager.batch(() => {
      this.getAll().forEach((query) => {
        query.onFocus();
      });
    });
  }
  onOnline() {
    notifyManager.batch(() => {
      this.getAll().forEach((query) => {
        query.onOnline();
      });
    });
  }
};
export {
  QueryCache
};
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