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• 0.6.2
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• Difference.java

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eu.mais_h.mathsync.Difference Maven / Gradle / Ivy

package eu.mais_h.mathsync;

import java.util.Set;

/**
 * Represents the difference between two states.
 *
 * @param  the type of added and removed items.
 */
public interface Difference {

  /**
   * Represents the set of items added on the remote side compared to the local state.
   *
   * @return the set of items added on the remote side compared to the local state.
   */
  Set added();

  /**
   * Represents the set of items removed on the remote side compared to the local state.
   *
   * @return the set of items removed on the remote side compared to the local state.
   */
  Set removed();
}