content: /*
   * MIT License
   *
   * Copyright (c) 2018 Alibaba Group
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  package com.tmall.wireless.tangram.support.async;
  
  import android.support.annotation.NonNull;
  
  import com.tmall.wireless.tangram.dataparser.concrete.Card;
  import com.tmall.wireless.tangram.structure.BaseCell;
  
  import java.util.List;
  
  /**
   * Interface to provide load data async for a Card. See default {@link LoadedCallback} implement in {@link CardLoadSupport}
   * <br />
   * Created by villadora on 15/12/4.
   */
  public interface AsyncLoader {
  
      /**
       * start to load data for a card
       * @param card the card who's cells is empty and need to be loaded
       * @param callback called after loading finished
       */
      void loadData(final Card card, @NonNull final LoadedCallback callback);
  
      interface LoadedCallback {
  
          /**
           * notify the card that loading has been finished
           */
          void finish();
  
          /**
           * notify the card that loading has been finished with failure.
           * @param loaded true, tell the card that there's no need to try again, false, tell the card to try again
           */
          void fail(boolean loaded);
  
          /**
           * notify the card that loading data is success and set data to card
           *
           * @param cells the cell list parsed from async loaded data
           */
          void finish(List<BaseCell> cells);
      }
  }
  