io.wcm.qa.galenium.differences.difference.IntegerDifference Maven / Gradle / Ivy

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 * Copyright (C) 2017 wcm.io
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 * 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
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 *      http://www.apache.org/licenses/LICENSE-2.0
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 * distributed under the License is distributed on an "AS IS" BASIS,
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package io.wcm.qa.galenium.differences.difference;

import io.wcm.qa.galenium.differences.base.DifferenceBase;

/**
 * Integer based difference for use with index or count values.
 */
public class IntegerDifference extends DifferenceBase {

  private int index;

  /**
   * Constructor.
   */
  public IntegerDifference() {
    this(0);
  }

  /**
   * @param index index to use
   */
  public IntegerDifference(int index) {
    setIndex(index);
  }

  /**
   * Decrement or count down.
   */
  public void decrement() {
    setIndex(getIndex() - 1);
  }

  public int getIndex() {
    return index;
  }

  /**
   * Increment aka increase index by one.
   */
  public void increment() {
    setIndex(getIndex() + 1);
  }

  public void setIndex(int index) {
    this.index = index;
  }

  @Override
  protected String getRawTag() {
    return Integer.toString(getIndex());
  }

}