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• RedundancyCounter.java

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io.github.oliviercailloux.personsmanager.RedundancyCounter Maven / Gradle / Ivy

package io.github.oliviercailloux.personsmanager;

/**
 * A redundancy counter is linked to some manager that contains elements (such as persons) and
 * permits to retrieve the number of duplicated elements and the number of unique elements that have
 * been set in that manager.
 *
 */
public interface RedundancyCounter {

  /**
   * Returns the number of entries that are redundant.
   *
   * @return a non-negative number.
   */
  public int getRedundancyCount();

  /**
   * Returns the number of unique elements in the associated manager.
   *
   * @return a non-negative number.
   */
  public int getUniqueCount();
}