// Copyright 2020 The Nomulus Authors. All Rights Reserved.
//
// 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 google.registry.schema.replay;

import java.util.Optional;

/**
 * An object that can be stored in Datastore and serialized using Objectify's {@link
 * com.googlecode.objectify.cmd.Saver#toEntity(Object)} code.
 *
 * <p>This is used when replaying {@link google.registry.model.ofy.CommitLogManifest}s to import
 * transactions and data into the secondary SQL store during the first, Datastore-primary, phase of
 * the migration.
 */
public interface DatastoreEntity {

  Optional<SqlEntity> toSqlEntity();
}
