Android Open Source - AndroidShoppingList Shopping List Collection

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License

The source code is released under:

Apache License

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Java Source Code

/**
 * Copyright 2012 C. A. Fitzgerald//w w  w.  ja  v  a  2s  .com
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

package com.github.riotopsys.shoppinglist.model;

import java.sql.SQLException;
import java.util.List;
import java.util.UUID;

import android.content.Context;

import com.github.riotopsys.shoppinglist.server.work.Operations;
import com.github.riotopsys.shoppinglist.server.work.WorkQueue;
import com.j256.ormlite.android.apptools.OpenHelperManager;
import com.j256.ormlite.dao.Dao;

public class ShoppingListCollection {

  public List<ShoppingList> getItems(Context ctx) {
    DatabaseHelper databaseHelper = OpenHelperManager.getHelper(ctx, DatabaseHelper.class);
    Dao<ShoppingList, UUID> dao;
    try {
      dao = databaseHelper.getShoppingListDao();

      return dao.queryForAll();
    } catch (SQLException e) {
      throw new RuntimeException(e);
    } finally {
      OpenHelperManager.releaseHelper();
    }
  }

  public ShoppingList createItem(Context ctx) {
    ShoppingList item = new ShoppingList();
    DatabaseHelper databaseHelper = OpenHelperManager.getHelper(ctx, DatabaseHelper.class);
    try {
      databaseHelper.createOrUpdate(item);

      Work w = new Work();

      w.target = item.getGuid();
      w.operation = Operations.CREATE_LIST;

      WorkQueue.getInstance().offer(ctx, w);

    } catch (SQLException e) {
      throw new RuntimeException(e);
    } finally {
      OpenHelperManager.releaseHelper();
    }
    return item;
  }

  public void removeItem(Context ctx, ShoppingList item) {
    // remove list items
    for (ShoppingListItem sli : item.getItems(ctx)) {
      item.removeItem(ctx, sli);
    }
    // remove list
    DatabaseHelper databaseHelper = OpenHelperManager.getHelper(ctx, DatabaseHelper.class);
    try {
      databaseHelper.delete(item);

      Work w = new Work();

      w.target = item.getGuid();
      w.operation = Operations.UNSUBSCRIBE_LIST;

      WorkQueue.getInstance().offer(ctx, w);
    } catch (SQLException e) {
      throw new RuntimeException(e);
    } finally {
      OpenHelperManager.releaseHelper();
    }
  }
}

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