@@ -0,0 +1,974 @@
+/*%0A *  Copyright 2020 Google LLC%0A *%0A *  Licensed under the Apache License, Version 2.0 (the %22License%22);%0A *  you may not use this file except in compliance with the License.%0A *  You may obtain a copy of the License at%0A *%0A *      https:www.apache.org/licenses/LICENSE-2.0%0A *%0A *  Unless required by applicable law or agreed to in writing, software%0A *  distributed under the License is distributed on an %22AS IS%22 BASIS,%0A *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A *  See the License for the specific language governing permissions and%0A *  limitations under the License.%0A */%0A%0Apackage com.google.vinet.data;%0A%0Aimport com.google.appengine.api.datastore.Key;%0A%0A/**%0A * Any class that can be stored and loaded from Datastore. The implementing class must also provide%0A * a constructor for loading an object from a Datastore entity.%0A */%0Apublic interface Datastoreable%3CE%3E %7B%0A%0A  /**%0A   * Store this class instance to Datastore.%0A   */%0A  void toDatastore();%0A%7D%0A

Add Datastoreable interface