Function useDataApiDynamicQuery

www/data-module/src/data/ReactUtils.ts:70–86

(
    dependency: any[], callback: () => Collection)

}

export function useDataApiDynamicQuery<T, Collection extends IDataCollection>(
    dependency: any[], callback: () => Collection): Collection {
  const storedDependency = useRef<any[]>([]);
  let storedCollection = useRef<Collection|null>(null);

  if (storedCollection.current === null ||
      !storedCollection.current.isValid() ||
      !arrayElementsEqual(dependency, storedDependency.current)) {
    if (storedCollection.current !== null) {
      storedCollection.current.close();
    }
    storedCollection.current = callback();
    storedDependency.current = [...dependency];
  }

  return storedCollection.current;
}

// The difference between this function and useDataApiDynamicQuery() is that
// useDataApiDynamicQuery() will return empty collection whenever it is refreshed whereas