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Module contains external API of the evitaDB.
/*
*
* _ _ ____ ____
* _____ _(_) |_ __ _| _ \| __ )
* / _ \ \ / / | __/ _` | | | | _ \
* | __/\ V /| | || (_| | |_| | |_) |
* \___| \_/ |_|\__\__,_|____/|____/
*
* Copyright (c) 2023
*
* Licensed under the Business Source License, Version 1.1 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://github.com/FgForrest/evitaDB/blob/master/LICENSE
*
* 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 io.evitadb.api.requestResponse.data;
/**
* This interface marks all objects that are immutable and versioned. Whenever new instance of the class instance is
* created and takes place of another class instance (i.e. is successor of that data) its version must be increased
* by one.
*
* Versioned data are used for handling [optimistic locking](https://en.wikipedia.org/wiki/Optimistic_concurrency_control).
*
* @author Jan Novotný ([email protected]), FG Forrest a.s. (c) 2021
*/
public interface Versioned {
/**
* Returns version of the object.
*/
int version();
}