/**
 * This file is part of Eclipse Steady.
 *
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 * SPDX-FileCopyrightText: Copyright (c) 2018-2020 SAP SE or an SAP affiliate company and Eclipse Steady contributors
 */
package org.eclipse.steady.sign;

import java.util.Set;

/**
 * A signature change represents a set of modifications that must be applied in order to transform one signature into another one.
 *
 * @see SignatureComparator
 */
public interface SignatureChange {

  /**
   * Returns a set of modifications required to transform one signature into another one.
   *
   * @return a {@link java.util.Set} object.
   */
  public Set<Object> getModifications();

  /**
   * <p>toJSON.</p>
   *
   * @return a {@link java.lang.String} object.
   */
  public String toJSON();

  /**
   * <p>isEmpty.</p>
   *
   * @return a boolean.
   */
  public boolean isEmpty();
}
