Class IndexedDBROTransaction

src/backend/IndexedDB.ts:49–71

 * @hidden
 */
export class IndexedDBROTransaction implements AsyncKeyValueROTransaction {
  constructor(public tx: IDBTransaction, public store: IDBObjectStore) { }

  public get(key: string, cb: BFSCallback<Buffer>): void {
    try {
      const r: IDBRequest = this.store.get(key);
      r.onerror = onErrorHandler(cb);
      r.onsuccess = (event) => {
        // IDB returns the value 'undefined' when you try to get keys that
        // don't exist. The caller expects this behavior.
        const result: any = (<any> event.target).result;
        if (result === undefined) {
          cb(null, result);
        } else {
          // IDB data is stored as an ArrayBuffer
          cb(null, arrayBuffer2Buffer(result));
        }
      };
    } catch (e) {
      cb(convertError(e));
    }
  }
}

/**
 * @hidden