class FooComponent {
  @Input()
  set config(value) {
    if (foo) {
      foo.destroy();
    }

    this.foo = new FooController(value);
  }

  public foo: FooController;
}

class FooController {

  private _pagination: PagingController;
  private _sorting: SortingController;
  private _data: DataController;

  constructor(config) {
    this._initPaging(config.paging);
    this._initSorting(config.sorting);
    this._initData(config.sorting);
  }

  private _initPaging(pagingConfig) {
    this._pagination = new PagingController(pagingConfig);
  }

  private _initSorting(sortingConfig) {
    this._sorting = new SortingController(sortingConfig);
  }

  private _initData(dataConfig) {
    this._data = new DataController(dataConfig);
  }
}

class PagingController {
  constructor(config) {}

  get isFirst() {}
  get isLast() {}
  get hasNext() {}
  get hasPrev() {}
  get currentPage() {}

  public goFirst() {}
  public goLast() {}
  public goNext() {}
  public goPrev() {}

  ....etc
}

class SortingController {
  constructor(config) {}

  get value() {}
  public sortBy() {}
  public sortDirection() {}
  public getField() {}

  ....etc
}

class DataController {
  constructor(config) {}

  public processData() {}
  public replaceData() {}
  public updateData() {}
  public removeData() {}
  public setOperation() {}
  public clear() {}

  ....etc
}