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path: root/platform/diff-api/src/com/intellij/diff/chains/DiffRequestChainBase.java
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/*
 * Copyright 2000-2016 JetBrains s.r.o.
 *
 * 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 com.intellij.diff.chains;

import com.intellij.openapi.util.UserDataHolderBase;

/**
 * @deprecated Do not use: see {@link #setIndex(int)} deprecation.
 */
@Deprecated
public abstract class DiffRequestChainBase extends UserDataHolderBase implements DiffRequestChain {
  private int myIndex;

  public DiffRequestChainBase() {
    this(0);
  }

  public DiffRequestChainBase(int index) {
    myIndex = index;
  }

  @Override
  public int getIndex() {
    return myIndex;
  }

  @Override
  public void setIndex(int index) {
    assert index == 0 || index > 0 && index < getRequests().size();
    myIndex = index;
  }
}