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Implementation of operational transformation technology. Allows building collaborative software systems.

There is a newer version: 6.0-rc2

/*
 * Copyright (C) 2020 ActiveJ LLC.
 *
 * 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 io.activej.ot.system;

import io.activej.ot.TransformResult;
import io.activej.ot.exception.TransformException;

import java.util.List;

import static java.util.Collections.singletonList;

public interface OTSystem {

	TransformResult transform(List leftDiffs, List rightDiffs) throws TransformException;

	default TransformResult transform(D leftDiff, D rightDiff) throws TransformException {
		return transform(singletonList(leftDiff), singletonList(rightDiff));
	}

	List squash(List ops);

	boolean isEmpty(D op);

	 List invert(List ops);
}