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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.commons.text.diff;

import java.util.List;

/**
 * This interface is devoted to handle synchronized replacement sequences.
 *
 * @param  object type
 * @see ReplacementsFinder
 * @since 1.0
 */
public interface ReplacementsHandler {

    /**
     * Handle two synchronized sequences.
     * 

* This method is called by a {@link ReplacementsFinder ReplacementsFinder} * instance when it has synchronized two sub-sequences of object arrays * being compared, and at least one of the sequences is non-empty. Since the * sequences are synchronized, the objects before the two sub-sequences are * equals (if they exist). This property also holds for the objects after * the two sub-sequences. *

* The replacement is defined as replacing the from * sub-sequence into the to sub-sequence. * * @param skipped number of tokens skipped since the last call (i.e. number of * tokens that were in both sequences), this number should be strictly positive * except on the very first call where it can be zero (if the first object of * the two sequences are different) * @param from sub-sequence of objects coming from the first sequence * @param to sub-sequence of objects coming from the second sequence */ void handleReplacement(int skipped, List from, List to); }





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