| // Copyright 2007, 2008 The Apache Software Foundation |
| // |
| // 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 org.apache.tapestry5.integration.app1.services; |
| |
| import org.apache.tapestry5.integration.app1.data.ToDoItem; |
| |
| import java.util.List; |
| |
| public interface ToDoDatabase |
| { |
| /** |
| * Adds an item to the database, first assigning a unique id to the item. |
| */ |
| void add(ToDoItem item); |
| |
| /** |
| * Finds all items, sorted ascending by each item's order property. |
| */ |
| List<ToDoItem> findAll(); |
| |
| /** |
| * Updates an existing item. |
| * |
| * @param item |
| * @throws RuntimeException if the item does not exist |
| */ |
| void update(ToDoItem item); |
| |
| /** |
| * Resets the database, clearing out all data, re-adding base data. |
| */ |
| void reset(); |
| |
| /** |
| * Deletes all items from the database. |
| */ |
| void clear(); |
| |
| /** |
| * Removes an existing item |
| * |
| * @param itemId item to remove |
| * @throws RuntimeException if the item does not exist |
| */ |
| void remove(long itemId); |
| } |